Round cylinders DSNU

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Round cylinders DSNU

Key features
At a glance
DSNU-8 ... 63 DSNU-8 ... 25

• Stainless steel piston rod • Extensive range of accessories • The basic versions conform to
• Good running performance and makes it possible to install the ISO 6432, variants are based on
long service life ­cylinder virtually anywhere these standards
• Piston rod with male and female
thread

Wide choice of variants

DSNU DSNU-...-MA DSNU-...-MQ DSNU-...-MH

• Piston @ 8 ... 63 mm • Piston @ 8 ... 63 mm • Piston @ 8 ... 63 mm • Piston @ 8 ... 63 mm

• Cylinder barrel made of stainless • Cylinder barrel made of stainless • Cylinder barrel made of stainless • Cylinder barrel made of stainless
steel steel steel steel
• Bearing and end caps made of • Bearing cap with threaded flange • Bearing cap with threaded flange • Direct mounting on bearing cap
wrought aluminium alloy • Short end cap with axial supply port • Short end cap with lateral supply • Short end cap with lateral supply
port port

DSNU-...-KP DSNU-...-Q

• Piston @ 8 ... 63 mm • Piston @ 12 ... 63 mm

• Cylinder barrel made of stainless • Cylinder barrel made of stainless
steel steel
• With clamping unit • With square piston rod

Cushioning types
Cushioning P Cushioning PPS Cushioning PPV

Operating mode • The drive is fitted with polymer • The drive is fitted with self-adjusting • The drive is fitted with adjustable
­elastic end-position cushioning end-position cushioning end-position cushioning

Application • Small loads • Small to medium loads • Medium to large loads

• Low speeds • Low to medium speeds • High speeds
• Low impact energies • Medium impact energies • High impact energies

Advantages • No adjustment required • No adjustment required • Very powerful

• Saves time • Saves time
• Powerful

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 Round cylinders DSNU

Key features
Further variants
Symbol Key features Description
S2 Through piston rod For working at both ends with the same force in the forward and return stroke,
for attaching external stops

S6 Heat-resistant seals Temperature resistance up to max. 120°C

S10 Constant motion at low piston speeds Suitable for very slow and constant (slow speed) and stick-slip-free movements.
With very low break-away pressure compared with the standard (low friction).

L Low friction • Break-away pressure: low

• Dynamic response: suitable for very fast movements, especially at low operating pres-
sures
Application example: very dynamic movements with no standstill
K2 Extended male piston rod thread –

K3 Female piston rod thread –

K5 Special piston rod thread Metric standard thread to ISO

K6 Shortened male piston rod thread –

K8 Extended piston rod –

R3 High corrosion protection All external cylinder surfaces comply with corrosion resistance class CRC 3 to Festo stand-
ard 940070. The piston rod is made from corrosion- and acid-resistant steel

R8 Dust protection (wiper seal) The cylinder has a hard-chrome-plated piston rod and a hard scraper, which protects
(32 ... 63 mm) against dry, dusty media

A1 Scraper variant Increased chemical resistance:

(12 ... 63 mm) For longer service life, e.g. when using cooling lubricants.

A6 Metal scraper The cylinder has a hard-chrome-plated piston rod and metal scraper, which scrapes off
(32 ... 63 mm) hard particles (e.g. welding spatter) that stick to the piston rod.
For use in welding systems, for example

F1A Recommended for production plants for Cylinders free of copper, zinc and nickel (š 1%)
manufacturing lithium-ion batteries

For manufacturing lithium-ion batteries

DSNU-...-F1A Accessories

Recommended for production systems for manufacturing lithium-ion batteries. Please contact your Festo representative for information on which accessories are
Metals with copper, zinc or nickel as the main constituent are excluded from use. suitable for manufacturing lithium-ion batteries.
Exceptions are nickel in steels, chemically nickel-plated surfaces, printed circuit
boards, cables, electrical plug connectors and coils.

Longer service life with bellows kit DADB

The bellows protects the piston rod, The bellows kit is a leak-free system. The kit protects the piston rod, seal
the seal and the bearing from the ef- To prevent unwanted media from being and bearing against a wide variety of
fects of a wide range of media, which drawn in, the supply and exhaust air media, for example:
has a positive impact on the service for the kit must be ducted via a pres- • Dust • Grease
life of these components. sure compensation hole in the connec- • Chippings • Petrol
tion part [1]. • Oil

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Round cylinders DSNU

Product range overview

Function Version Piston @ Stroke Variable Piston rod
stroke1) Through Extended Male thread Inside
Extended Shortened Custom thread
thread
[mm] [mm] [mm] S2 K8 K2 K6 K5 K3
Double- DSNU-... – Cylinder barrel made of stainless steel
acting 8, 10 10, 15, 20, 25, 1 ... 100
12, 16 30, 35, 40, 50, 1 ... 200
20 60, 70, 80, 100, 1 ... 320
25 125, 150, 160, 1 ... 500
200, 250, 300, h h h h h h
320, 400, 500 From @ 25 From @ 20
32, 40, 50, 63 25, 40, 50, 80, 1 ... 500
100, 125, 160,
200, 250, 320

DSNU-Q-... – Protected against rotation

12, 16 – 1 ... 160
20 – 1 ... 200
25 – 1 ... 250
h h h h h h
32 – 1 ... 300
From @ 25 From @ 20
40, 50 – 1 ... 400
63 – 1 ... 500

DSNU-MQ-... – Lateral supply port, short end cap

8, 10 – 1 ... 100
12, 16 – 1 ... 200
20 – 1 ... 320 – h h h h h
25 – 1 ... 500
32, 40, 50, 63 – 1 ... 500

DSNU-MA-... – Axial supply port, short end cap

8, 10 – 1 ... 100
12, 16 – 1 ... 200
20 – 1 ... 320
– h h h h h
25 – 1 ... 500
32, 40, 50 – 1 ... 500
63

DSNU-MH-... – Direct mounting

8, 10 – 1 ... 100
12, 16 – 1 ... 200
20 – 1 ... 320
25 – 1 ... 500 h h h h h h
32, 40, 50 – 1 ... 500
63

1) Cylinders with position sensing require a minimum stroke of 10 mm to ensure reliable sensing

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 Round cylinders DSNU

Product range overview

Piston @ Cushioning Position Clamping Heat-re- Slow Low fric- Corro- Dust pro- Wiper Metal For a Page/
Fixed Adjusta- Self- sensing unit sistant speed tion sion pro- tection variant scraper battery Internet
ble adjusting seal (constant tection (wiper produc-
motion) seal) tion
P PPV2) PPS A KP S6 S10 L R3 R8 A1 A6 F1A
DSNU-... – Cylinder barrel made of stainless steel
8 ... 63 9

h h h h h h h h
h h h h h
From From From From From From From Up to
@ 16 @ 16 @ 12 @ 12 @ 32 @ 12 @ 32 @ 40

DSNU-Q-... – Protected against rotation

12 ... 63 46
h
@ 12 h h h
– h h – – – – – –
and From From From
from @ 16 @ 32 @ 16
@ 32
DSNU-MQ-... – Lateral supply port
8 ... 63 9

h h h h h
h h h h – – h h
From From From From Up to
@ 16 @ 16 @ 32 @ 32 @ 40

DSNU-MA-... – Axial supply port

8 ... 63 9

h h
– – h h h – – h – h h
From Up to
@ 32 @ 40

DSNU-MH-... – Direct mounting

8 ... 63 9

h
h – h – h – – h – – – –
From
@ 32

2) In the modular product system from @ 12 mm

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Round cylinders DSNU

Peripherals overview
DSNU-...

8
5
3 4
9

21 10

17 2
11 13
16 1

15
18
12
14
19

20

10

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 Round cylinder DSNU

Peripherals overview
Mounting attachments and accessories
Piston @ DSNU DSNU-Q a Page/
Internet
MA MQ MH KP
[1] Round cylinder
DSNU
[2] Hex nut 16 ... 25 60
h h h h h h
MSK
[3] Bellows kit2) 12 ... 63 62
h h h – – –
DADB
[4] One-way flow control valve 8 ... 63 70
h h h h h h
GRLA/GRLZ
[5] Push-in fitting 8 ... 63 qs
h h h h h h
QS
[6] Clevis foot 8 ... 63 59
h – – – h h
LBN/CRLBN
[7] Foot mounting 8 ... 63 54
h h h – h h
HBN/CRHBN/CRH
[8] Flange mounting 8 ... 63 56
h h h – h h
FBN/CRFBN/CRFV
[9] Swivel mounting1) 8 ... 63 58
h h h – h h
WBN
[10] Swivel mounting1) 20 ... 63 h 58
SBN
h h h – h
@ 20 ... 50
[11] Mounting kit 8 ... 63 68
h h h h h h
SMBR
[12] Mounting kit 8 ... 63 68
h h h h h h
SMBR-...-S6
[13] Proximity switch 8 ... 63 68
h h h h h h
SMT/CRSMT/SDBT
Position transmitter 8 ... 63 69
h h h h h h
SDAS/SDAT/SMAT
[14] Self-aligning rod coupler 8 ... 63 60
h h h h h h
FK/CRFK/DARP
[15] Rod clevis 8 ... 63 60
h h h h h h
SG/CRSG
[16] Coupling piece 12 ... 63 60
h h h h h h
KSG/KSZ
[17] Rod eye 8 ... 63 60
h h h h h h
SGS/CRSGS
[18] Right-angle clevis foot 32 ... 63 59
h h h h h h
LQG
[19] Rod clevis 32 ... 63 60
h h h h h h
SGA
[20] Clevis foot 32 ... 63 61
h h h h h h
LBG
[21] Guide unit 8 ... 25 61
h h h – – –
FEN

-H- Note
1) Cannot be used on the bearing 2) The bellows kit protects the It can only be used in combination
cap in combination with protec- ­cylinder (piston rod, seal and with an extended piston rod (K8)
tive bellows kit DADB. bearings) against a wide range
of media and thus prevents
premature wear.

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Round cylinders DSNU

Type codes
DSNU-...

001 Series 010 Piston rod thread extension

DSNU Round cylinder, double-acting, based on ISO 6432 None
...K2 1 ... 70 mm
002 Piston diameter
8 8 011 K6 - Shortened male piston rod thread
10 10 None
12 12 K6 1 ... 10 mm
16 16
20 20 012 Piston rod thread type
25 25 Male thread
32 32 K3 Female thread
40 40
50 50 013 Custom thread
63 63 “M10”K5 M10
“M12”K5 M12
003 Stroke “M16”K5 M16
... 1 ... 500
014 Piston rod extension
004 Cushioning None
P Elastic cushioning rings/plates on both sides ...K8 1 ... 500 mm
PPS Pneumatic cushioning, self-adjusting at both ends
PPV Pneumatic cushioning, adjustable at both ends 015 Clamping unit
None
005 Position sensing KP attached
A For proximity sensor
016 Temperature range
006 Special material properties Standard
None S6 Heat-resistant seals max. 120 °C
F1A Recommended for production facilities for the manufacture of
lithium-ion batteries (Cu<=1%, ,Zn<=1%, Ni<=1%) 017 Constant motion
Standard
007 Cylinder end cap
S10 Uniform, slow movement
Standard
MA Axial air connection, end cap 018 Corrosion protection
MH Direct mounting, bearing cap Standard
MQ Transverse supply port, end cap R3 High corrosion protection

008 Protection against rotation 019 Scraper variant

Q Square piston rod Standard
None R8 Dust protection
A6 Metal scraper
009 Piston rod type
At one end 020 EU certification
S2 Through piston rod None
EX4 II 2GD

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Datasheet
P cushioning
-N- Diameter
8 ... 25 mm
ISO 6432

Adjustable pneumatic cushioning PPV

-N- Diameter
32 ... 63 mm

PPS cushioning
-T- Stroke length
1 ... 500 mm,
longer strokes on request

General technical data

Piston @ 8 10 12 16 20 25 32 40 50 63
Conforms to standard ISO 6432 –
Pneumatic connection M5 M5 M5 M5 G1/8 G1/8 G1/8 G1/4 G1/4 G3/8
Piston rod thread M4 M4 M6 M6 M8 M10x1.25 M10x1.25 M12x1.25 M16x1.5 M16x1.5
Stroke1) [mm] 1 ... 100 1 ... 200 1 ... 320 1 ... 500
Design Piston/piston rod/cylinder barrel
Cushioning
DSNU-...-P Elastic cushioning rings/plates at both ends
DSNU-...-PPV – Cushioning, adjustable at both ends
DSNU-...-PPS – Cushioning, self-adjusting at both ends
Cushioning length
DSNU-...-PPV [mm] – 9 12 15 17 14 18 20 21
DSNU-...-PPS [mm] – 12 15 17 14 18 20 21
Position sensing Via proximity switch
Type of mounting Direct mounting (variant MH only)
With accessories
Mounting position Any

1) Cylinders with position sensing require a minimum stroke of 10 mm to ensure reliable sensing.
Longer strokes on request

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Round cylinders DSNU

Datasheet
Operating and environmental conditions
Piston @ 8 10 12 16 20 25 32 40 50 63
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Note on the operating/pilot medium Lubricated operation possible (in which case lubricated operation will always be required)
Operating pressure
DSNU-... [MPa] 0.15 ... 12) 0.1 ... 1
[bar] 1.5 ... 102) 1 ... 10
DSNU-...-S10 [MPa] – 0.05 ... 1 0.03 ... 1 0.02 ... 1
[bar] – 0.5 ... 10 0.3 ... 10 0.2 ... 10
DSNU-...-L1) [MPa] 0.06 ... 1 0.05 ... 1 0.04 ... 1 0.02 ... 1
[bar] 0.6 ... 10 0.5 ... 10 0.4 ... 10 0.2 ... 10
DSNU-...-A6 [MPa] – 0.2 ... 1
[bar] – 2 ... 10
Ambient temperature3)
DSNU-... [°C] –20 ... +80
DSNU-...-S6 [°C] 0 ... +120
DSNU-...-S10/L [°C] +5 ... +80
DSNU-...-R3 [°C] –20 ... +80
DSNU-...-A1 [°C] 0 ... +80
DSNU-...-S6-A6 [°C] – 0 ... +120
Corrosion resistance class CRC4)
DSNU-... 2 - Moderate corrosion stress
DSNU-...-R3 3 - High corrosion stress
DSNU-...-F1A 0 - no corrosion stress
DSNU-...-P See certificate –
DSNU-...-PPV See certificate –

1) Values apply only for strokes ≤ 500 mm and after 10 double strokes.
In combination with cushioning PPV/PPS, the specifications only apply outside the cushioning range.
2) For DSNU-12-... PPV (pneumatic cushioning adjustable at both ends): 0.2 ... 1 MPa (2 ... 10 bar)
3) Note operating range of proximity switches
4) More information www.festo.com/x/topic/crc

ATEX1)
ATEX category for gas II 2G
Type of ignition protection for gas Ex h IIC T4 Gb
ATEX category for dust II 2D
Type of ignition protection for dust Ex h IIIC T120°C Db
Explosion-proof ambient temperature –20°C <= Ta <= +60°C
CE marking (see declaration of conformity) To EU Explosion Protection Directive (ATEX)
UKCA marking (see declaration of conformity) According to UK explosion regulations
Explosion protection certification outside the EPL Db (GB)
EU EPL Gb (GB)

1) Note the ATEX certification of the accessories.

Weight [g]
Piston @ 8 10 12 16 20 25 32 40 50 63
Product weight with 0 mm stroke 34.6 37.3 75 89.9 186.8 238 370.5 661 1087 1445
Additional weight per 10 mm stroke 2.4 2.7 4 4.6 7.2 11 15.5 24 40 44

Moving mass with 0 mm stroke 7.5 8.5 18.5 23 44 71 121 230 413 459
Moving mass per 10 mm stroke 1 1 2 2 4 6 9 16 25 25

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Datasheet
Speed [mm/s]1)
Piston @ 16 20 25 32 40 50 63
Speed with stick-slip-free operation, S10 10 ... 100 8 ... 100 5 ... 100
horizontal, without load, at 0.6 MPa
(6 bar)

1) Measurements of less than 1 mm/s were not conducted

Forces [N] and impact energy [J]

Piston @ 8 10 12 16 20 25 32 40 50 63
Theoretical force at 0.6 MPa (6 bar), advancing 30 47 68 121 189 295 483 753 1178 1870
Theoretical force at 0.6 MPa (6 bar), retracting 23 40 51 104 158 247 415 633 990 1682
Impact energy in the end positions 0.03 0.05 0.07 0.15 0.20 0.30 0.40 0.70 1.00 1.30
for P cushioning1)

1) The values are reduced by approx. 50% at an ambient temperature of 80 °C

Average piston speed v as a function of payload m in combination with cushioning PPS

DSNU-16-PPS
Piston @ 16 DSNU-20-PPS
Piston @ 20

2 2

1.5 1.5
v [m/s]

v [m/s]

1 1

0.5 0.5

0 0
0 1 2 3 4 5 0 1 2 3 4 5 6 7
m [kg] m [kg]

DSNU-16-50 DSNU-20-50
DSNU-16-100 DSNU-20-100
DSNU-16-200 DSNU-20-200

Piston @ 25
DSNU-25-PPS Piston @ 32
DSNU-32-PPS

1.6 1.6

1.2 1.2
v [m/s]

v [m/s]

0.8 0.8

0.4 0.4

0 0
0 2 4 6 8 10 12 0 2 4 6 8 10 12 14 16 18 20
m [kg] m [kg]

DSNU-25-50 DSNU-32-50
DSNU-25-100 DSNU-32-100
DSNU-25-200 DSNU-32-200

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Datasheet
Average piston speed v as a function of payload m in combination with cushioning PPS
Piston @ 40
DSNU-40-PPS Piston @ 50
DSNU-50-PPS

1.2 1
1 0.8
0.8
v [m/s]

v [m/s]
0.6
0.6
0.4 0.4
0.2 0.2
0 0
0 5 10 15 20 25 30 0 5 10 15 20 25 30 35 40 45 50
m [kg] m [kg]

DSNU-40-50 DSNU-50-50
DSNU-40-100 DSNU-50-100
DSNU-40-200 DSNU-50-200

Piston @ 63
DSNU-63-PPS Note:

1 Engineering software for Average piston speed =

P cushioning Stroke/movement time
0.8
Adjustable pneumatic cushioning PPV
v [m/s]

0.6 PPS cushioning

0.4 d https://www.festo.com/x/pneumat-
0.2 ic-sizing
0
0 10 20 30 40 50 60 70 80
m [kg]

DSNU-63-50
DSNU-63-100
DSNU-63-200

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Datasheet
Max. transverse force Fq as a function of projection l

DSNU-...
DSNU-8 ... 25 DSNU-32 ... 63

60 320
55 300
280
50
260
45 240
40 220
200
35
180
Fq [N]

Fq [N]
30 160
25 140
120
20
100
15 80
10 60
40
5
20
0 0
0.1 1 10 100 1000 0.1 1 10 100 1000
l [mm] l [mm]

DSNU-8/10 DSNU-32
DSNU-12/16 DSNU-40
DSNU-20 DSNU-50/63
DSNU-25

DSNU-...-S2
DSNU-8 – Through piston rod
... 25-S2 DSNU-32 ... 63-S2

120 650
110 600

100 550

90 500

80 450
400
70
Fq [N]

350
Fq [N]

60
300
50
250
40
200
30
150
20
100
10 50
0 0
0.1 1 10 100 1000 0.1 1 10 100 1000
l [mm] l [mm]

DSNU-8/10 DSNU-32
DSNU-12/16 DSNU-40
DSNU-20 DSNU-50/63
DSNU-25

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Datasheet
Materials
Sectional view

1 3 4 5

2 6

Round cylinder 8 ... 25 32 ... 63

[1] Piston rod
DSNU-... High-alloy steel
DSNU-...-R3 High-alloy stainless steel
DSNU-...-A6 – Hard-chrome-plated tempered steel
[2] Piston rod bearing Sintered bronze
[3] Bearing cap Wrought aluminium alloy, colourless anodised
[4] Cylinder barrel High-alloy stainless steel
[5] End cap Wrought aluminium alloy, colourless anodised
[6] Swivel bearing Polymer
– Piston rod wiper seal
DSNU-... TPE-U(PU)
DSNU-...-S6/-S10/-L/-A1 FPM
DSNU-...-R3 TPE-U (PU) media seal (modified for resistance to hydrolysis and cleaning)
Piston rod wiper
DSNU-...-A6 – CuZn
LABS (PWIS) conformity VDMA24364-B1/B2-L1)
Cleanroom class Class 6 to ISO 14644-1
Note on materials
DSNU-... RoHS-compliant
DSNU-...-S10 Contains paint-wetting impairment substances
DSNU-...-F1A Metals with more than 1% by mass of copper, zinc or nickel are excluded from use. Exceptions are nickel in steel, chemically nickel-plated
surfaces, printed circuit boards, cables, electrical plug connectors and coils

1) Applies to all variants except S10

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Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-8 ... 25

-H- Note
Piston rod nut is not included in
the scope of delivery for diameter
8 ... 20.
+ = plus stroke length

@ AM B BE BF CD D D4 E EE EW G
@ @ @ @
[mm] h8 H9
8 9.3
12 12 M12x1.25 12 4 16 14 8
10 11.3
M5 10
12 13.3
16 16 M16x1.5 17 6 20 18 12
16 17.3
20 20 20 21.3 26
22 M22x1.5 8 30 G1/8 16 16
25 22 22 26.5 27

@ KK KV KW MM L L2 PL VD WF XC ZJ ß1
@ ±1.2 ±1
[mm]
8
M4 19 6 4 6 46 16 64 62 –
10
6
12 50 75 72
M6 24 8 6 9 2 22 5
16 56 82 78
20 M8 8 68 24 95 92 7
32 11 12 8.2
25 M10x1.25 10 69.5 28 104 97.5 9

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Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-8 ... 25
MQ – Lateral supply port, short end cap MA – Axial supply port, short end cap

MH – With direct mounting

+ = plus stroke length

@ B D2 D3 E EE F FB G L2
@ @ @ @ DSNU-...
[mm] h8 -MQ -MA -MH
8 10.5 43.6 53.5
12 6 24 3.4 46
10 12.5 43.1 53.8
M5 10
12 14.5 50 47.7 62
16 8 30 3 4.5
16 17.5 56 53.7 67.8
20 21.7 10 5.5 68 66.5 81.5
22 40 G1/8 16
25 26.7 11 6.6 69.5 68.5 86.2

@ L3 L4 L5 R RT TG T1 UO WF ZJ
DSNU-...
[mm] -MQ -MA -MH
8 7.6 59.6 61.5
5 14 12 M3 18 3.4 16 8 62
10 7.1 59.1 61.8
12 72 69.7 72
7.7 6 18.1 16 M4 23 4.5 22
16 10 78 75.7 77.8
20 14.5 22.4 22 5.5 28 92 90.5 91.5
7.5 M5 31
25 14 25.2 25 6.6 32 11 97.5 96.5 97.2

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Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-8 ... 25
S2 – Through piston rod

-H- Note
The thread types at both piston rod
ends are identical. In combination
with variant Q, the left piston rod
end is square, the right piston rod + = plus stroke length
end round. ++ = plus 2x stroke length

K2 – Extended male piston rod thread K6 – Shortened male piston rod thread

K3 – Female piston rod thread K5 – Special piston rod thread

K8 – Extended piston rod

-H- Note
If variant K8 is required in combi-
nation with S2, the piston rod will
only be extended at one end.

@ A1 A2 A3 AF AM KF KK T4 WF ZJ ZM
max. max. max. Basic thread Custom DSNU-...
[mm] thread1) _1.2 -MQ -MA -MH
8 – – – – 59.6 61.5
15 50 12 M4 16 62 78.4
10 – – – – 59.1 61.8
4
12 – – – – 72 69.7 72 94
20 100 16 M6 22
16 – – – – 78 75.7 77.8 100
20 25 110 20 M4 M8 – 2 24 92 90.5 91.5 116
8 12
25 35 150 22 M6 M10x1.25 M10 2.6 28 97.5 96.5 97.2 125.5

1) The custom threads are only available as male threads. The scope of delivery does not include a hex nut for the piston rod thread

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Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-32 ... 63

@50/63

+ = plus stroke length

@ AM B BE BF B4 CD D D1 D4 E EE EW
@ @ @ @ @
[mm] h8 H9
32 22 30 M30x1.5 26 5 10 41 42 33.6 38 G1/8 16
40 24 38 M38x1.5 30 6 12 49 50 41.6 45 18
G1/4
50 57 52.4
32 45 M45x1.5 33 8 16 60 – 21
63 70 65.4 G3/8

@ G KK KW MM L L2 PL VD WF XC ZJ ß1 ß2
@ ±1.2 ±1
[mm]
32 19 M10x1.25 8 12 13 69.5 9 2 34 117.5 103.5 10 16
40 M12x1.25 16 15 84.6 39 139.6 123.6 13 18
25 12
50 10 86.2 3 44 147.2 130.2
M16x1.5 20 16 17 24
63 28 94.2 13 45 156.2 139.2

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Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-32 ... 63
MQ – Lateral supply port, short end cap MA – Axial supply port, short end cap

MH – With direct mounting

[1] Centring holes

(2 centring sleeves included
in the scope of delivery)
+ = plus stroke length

@ B B2 E EE G F FB D2 D3 D5 D6 L1 L2
@ @ @ @ @ @ DSNU-...
[mm] h8 -MQ -MA -MH
32 30 48 G1/8 19 6.6 34 11 9 30 3 69.5 65.5 85.5
40 38 1 54 42 38 84.6 77.6 104.6
G1/4 25 4 9 14 12
50 64 53 4 86.2 86.2 109.2
45 45
63 2 72 G3/8 28 11 66 18 15 94.2 94.2 117.2

@ L3 L4 L5 R RT TO T1 T2 TG UO WF ZJ
DSNU-...
[mm] -MQ -MA -MH
32 15 12 25 30 19 6.6 2.1 38 40 103.5 99.5 97.5
M5 12
40 18 32 38 24 42 48 123.6 116.6 116.6
9 2.6
50 25 15 35 42 M6 32 50 58 130.2 130.2 124.2
15
63 28 36 44 M8 36 11 3.1 52 72 139.2 139.2 132.2

2024/12 www.festo.com/catalogue/... 19
Round cylinders DSNU

Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-32 ... 63
S2 – Through piston rod

-H- Note
The thread types at both piston rod
ends are identical. In combination
with variant Q, the left piston rod
end is square, the right piston rod + = plus stroke length
end round. ++ = plus 2x stroke length

K2 – Extended male piston rod thread K6 – Shortened male piston rod thread

K3 – Female piston rod thread K5 – Special piston rod thread

K8 – Extended piston rod

-H- Note
If variant K8 is required in combi-
nation with S2, the piston rod will
only be extended at one end.

@ A1 A2 A3 AF AM KF KK T4 WF ZJ ZM
max. max. max. Basic thread Custom DSNU-...
[mm] thread1) _1.2 -MQ -MA -MH
32 22 M6 M10x1.25 M10 2.6 34 103.5 99.5 97.5 137.5
35 8 12
40 24 M8 M12x1.25 M12 3.3 39 123.6 111.6 116.6 162.6
500
50 44 130.2 130.2 124.2 174.2
70 10 16 32 M10 M16x1.5 M16 4.7
63 45 139.2 139.2 132.2 184.2

1) The custom threads are only available as male threads. The scope of delivery does not include a hex nut for the piston rod thread

20 www.festo.com/catalogue/... 2024/12
 Round cylinders DSNU

Datasheet
q  Core Range
Ordering data
Piston @ Stroke P– Elastic cushioning rings/ PPV – Pneumatic cushioning, PPS – Pneumatic cushioning,
plates at both ends adjustable at both ends self-adjusting at both ends
A– With position sensing A– With position sensing A– With position sensing
[mm] [mm] Part no. Type Part no. Type Part no. Type
12 10 q 19189 DSNU-12-10-P-A – –
15 q 1908255 DSNU-12-15-P-A
20 q 1908256 DSNU-12-20-P-A
25 q 19190 DSNU-12-25-P-A
30 q 1908257 DSNU-12-30-P-A
40 q 19191 DSNU-12-40-P-A
50 q 19192 DSNU-12-50-P-A
60 q 1908258 DSNU-12-60-P-A
80 q 19193 DSNU-12-80-P-A
100 q 19194 DSNU-12-100-P-A
125 q 19195 DSNU-12-125-P-A
160 q 19196 DSNU-12-160-P-A
200 q 19197 DSNU-12-200-P-A

16 10 q 19198 DSNU-16-10-P-A q 1908266 DSNU-16-10-PPV-A q 1908274 DSNU-16-10-PPS-A

15 q 1908259 DSNU-16-15-P-A q 1908267 DSNU-16-15-PPV-A q 1908275 DSNU-16-15-PPS-A
20 q 1908260 DSNU-16-20-P-A q 1908268 DSNU-16-20-PPV-A q 1908276 DSNU-16-20-PPS-A
25 q 19199 DSNU-16-25-P-A q 33973 DSNU-16-25-PPV-A q 559263 DSNU-16-25-PPS-A
30 q 1908261 DSNU-16-30-P-A q 1908269 DSNU-16-30-PPV-A q 1908277 DSNU-16-30-PPS-A
35 q 1908262 DSNU-16-35-P-A q 1908270 DSNU-16-35-PPV-A q 1908278 DSNU-16-35-PPS-A
40 q 19200 DSNU-16-40-P-A q 19229 DSNU-16-40-PPV-A q 559264 DSNU-16-40-PPS-A
50 q 19201 DSNU-16-50-P-A q 19230 DSNU-16-50-PPV-A q 559265 DSNU-16-50-PPS-A
60 q 1908263 DSNU-16-60-P-A q 1908271 DSNU-16-60-PPV-A q 1908279 DSNU-16-60-PPS-A
70 q 1908264 DSNU-16-70-P-A q 1908272 DSNU-16-70-PPV-A q 1908280 DSNU-16-70-PPS-A
80 q 19202 DSNU-16-80-P-A q 19231 DSNU-16-80-PPV-A q 559266 DSNU-16-80-PPS-A
100 q 19203 DSNU-16-100-P-A q 19232 DSNU-16-100-PPV-A q 559267 DSNU-16-100-PPS-A
125 q 19204 DSNU-16-125-P-A q 19233 DSNU-16-125-PPV-A q 559268 DSNU-16-125-PPS-A
150 q 1908265 DSNU-16-150-P-A q 1908273 DSNU-16-150-PPV-A q 1908281 DSNU-16-150-PPS-A
160 q 19205 DSNU-16-160-P-A q 19234 DSNU-16-160-PPV-A q 559269 DSNU-16-160-PPS-A
200 q 19206 DSNU-16-200-P-A q 19235 DSNU-16-200-PPV-A q 559270 DSNU-16-200-PPS-A

2024/12 www.festo.com/catalogue/... 21
Round cylinders DSNU

Datasheet
q  Core Range
Ordering data
Piston @ Stroke P– Elastic cushioning rings/ PPV – Pneumatic cushioning, PPS – Pneumatic cushioning,
plates at both ends adjustable at both ends self-adjusting at both ends
A– With position sensing A– With position sensing A– With position sensing
[mm] [mm] Part no. Type Part no. Type Part no. Type
20 10 q 19207 DSNU-20-10-P-A q 1908289 DSNU-20-10-PPV-A q 1908297 DSNU-20-10-PPS-A
15 q 1908282 DSNU-20-15-P-A q 1908290 DSNU-20-15-PPV-A q 1908298 DSNU-20-15-PPS-A
20 q 1908283 DSNU-20-20-P-A q 1908291 DSNU-20-20-PPV-A q 1908299 DSNU-20-20-PPS-A
25 q 19208 DSNU-20-25-P-A q 33974 DSNU-20-25-PPV-A q 559271 DSNU-20-25-PPS-A
30 q 1908284 DSNU-20-30-P-A q 1908292 DSNU-20-30-PPV-A q 1908300 DSNU-20-30-PPS-A
35 q 1908285 DSNU-20-35-P-A q 1908293 DSNU-20-35-PPV-A q 1908301 DSNU-20-35-PPS-A
40 q 19209 DSNU-20-40-P-A q 19236 DSNU-20-40-PPV-A q 559272 DSNU-20-40-PPS-A
50 q 19210 DSNU-20-50-P-A q 19237 DSNU-20-50-PPV-A q 559273 DSNU-20-50-PPS-A
60 q 1908286 DSNU-20-60-P-A q 1908294 DSNU-20-60-PPV-A q 1908302 DSNU-20-60-PPS-A
70 q 1908287 DSNU-20-70-P-A q 1908295 DSNU-20-70-PPV-A q 1908303 DSNU-20-70-PPS-A
80 q 19211 DSNU-20-80-P-A q 19238 DSNU-20-80-PPV-A q 559274 DSNU-20-80-PPS-A
100 q 19212 DSNU-20-100-P-A q 19239 DSNU-20-100-PPV-A q 559275 DSNU-20-100-PPS-A
125 q 19213 DSNU-20-125-P-A q 19240 DSNU-20-125-PPV-A q 559276 DSNU-20-125-PPS-A
150 q 1908288 DSNU-20-150-P-A q 1908296 DSNU-20-150-PPV-A q 1908304 DSNU-20-150-PPS-A
160 q 19214 DSNU-20-160-P-A q 19241 DSNU-20-160-PPV-A q 559277 DSNU-20-160-PPS-A
200 q 19215 DSNU-20-200-P-A q 19242 DSNU-20-200-PPV-A q 559278 DSNU-20-200-PPS-A
250 q 19216 DSNU-20-250-P-A q 19243 DSNU-20-250-PPV-A q 559279 DSNU-20-250-PPS-A
300 q 19217 DSNU-20-300-P-A q 19244 DSNU-20-300-PPV-A q 559280 DSNU-20-300-PPS-A
320 q 34718 DSNU-20-320-P-A q 34720 DSNU-20-320-PPV-A q 559281 DSNU-20-320-PPS-A

25 10 q 19218 DSNU-25-10-P-A q 1908312 DSNU-25-10-PPV-A q 1908320 DSNU-25-10-PPS-A

15 q 1908305 DSNU-25-15-P-A q 1908313 DSNU-25-15-PPV-A q 1908321 DSNU-25-15-PPS-A
20 q 1908306 DSNU-25-20-P-A q 1908314 DSNU-25-20-PPV-A q 1908322 DSNU-25-20-PPS-A
25 q 19219 DSNU-25-25-P-A q 33975 DSNU-25-25-PPV-A q 559282 DSNU-25-25-PPS-A
30 q 1908307 DSNU-25-30-P-A q 1908315 DSNU-25-30-PPV-A q 1908323 DSNU-25-30-PPS-A
35 q 1908308 DSNU-25-35-P-A q 1908316 DSNU-25-35-PPV-A q 1908324 DSNU-25-35-PPS-A
40 q 19220 DSNU-25-40-P-A q 19245 DSNU-25-40-PPV-A q 559283 DSNU-25-40-PPS-A
50 q 19221 DSNU-25-50-P-A q 19246 DSNU-25-50-PPV-A q 559284 DSNU-25-50-PPS-A
60 q 1908309 DSNU-25-60-P-A q 1908317 DSNU-25-60-PPV-A q 1908325 DSNU-25-60-PPS-A
70 q 1908310 DSNU-25-70-P-A q 1908318 DSNU-25-70-PPV-A q 1908326 DSNU-25-70-PPS-A
80 q 19222 DSNU-25-80-P-A q 19247 DSNU-25-80-PPV-A q 559285 DSNU-25-80-PPS-A
100 q 19223 DSNU-25-100-P-A q 19248 DSNU-25-100-PPV-A q 559286 DSNU-25-100-PPS-A
125 q 19224 DSNU-25-125-P-A q 19249 DSNU-25-125-PPV-A q 559287 DSNU-25-125-PPS-A
150 q 1908311 DSNU-25-150-P-A q 1908319 DSNU-25-150-PPV-A q 1908327 DSNU-25-150-PPS-A
160 q 19225 DSNU-25-160-P-A q 19250 DSNU-25-160-PPV-A q 559288 DSNU-25-160-PPS-A
200 q 19226 DSNU-25-200-P-A q 19251 DSNU-25-200-PPV-A q 559289 DSNU-25-200-PPS-A
250 q 19227 DSNU-25-250-P-A q 19252 DSNU-25-250-PPV-A q 559290 DSNU-25-250-PPS-A
300 q 19228 DSNU-25-300-P-A q 19253 DSNU-25-300-PPV-A q 559291 DSNU-25-300-PPS-A
320 q 34719 DSNU-25-320-P-A q 34721 DSNU-25-320-PPV-A q 559292 DSNU-25-320-PPS-A

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 Round cylinders DSNU

Datasheet
Ordering data
Piston @ Stroke P– Elastic cushioning rings/ PPV – Pneumatic cushioning, adjustable PPS – Pneumatic cushioning,
plates at both ends at both ends self-adjusting at both ends
A– With position sensing A– With position sensing A– With position sensing
[mm] [mm] Part no. Type Part no. Type Part no. Type
8 10 19177 DSNU-8-10-P-A – –
15 1908247 DSNU-8-15-P-A
20 1908248 DSNU-8-20-P-A
25 19178 DSNU-8-25-P-A
30 1908249 DSNU-8-30-P-A
40 19179 DSNU-8-40-P-A
50 19180 DSNU-8-50-P-A
60 1908250 DSNU-8-60-P-A
80 19181 DSNU-8-80-P-A
100 19182 DSNU-8-100-P-A

10 10 19183 DSNU-10-10-P-A – –
15 1908251 DSNU-10-15-P-A
20 1908252 DSNU-10-20-P-A
25 19184 DSNU-10-25-P-A
30 1908253 DSNU-10-30-P-A
40 19185 DSNU-10-40-P-A
50 19186 DSNU-10-50-P-A
60 1908254 DSNU-10-60-P-A
80 19187 DSNU-10-80-P-A
100 19188 DSNU-10-100-P-A

12 70 5249943 DSNU-12-70-P-A – –
150 5249947 DSNU-12-150-P-A

25 400 35191 DSNU-25-400-P-A 35193 DSNU-25-400-PPV-A 559293 DSNU-25-400-PPS-A

500 35192 DSNU-25-500-P-A 35194 DSNU-25-500-PPV-A 559294 DSNU-25-500-PPS-A

32 10 5249365 DSNU-32-10-P-A – –
15 5249366 DSNU-32-15-P-A
20 5249367 DSNU-32-20-P-A
25 195980 DSNU-32-25-P-A 196020 DSNU-32-25-PPV-A 559295 DSNU-32-25-PPS-A
30 5249368 DSNU-32-30-P-A 5249851 DSNU-32-30-PPV-A 5249968 DSNU-32-30-PPS-A
40 195981 DSNU-32-40-P-A 196021 DSNU-32-40-PPV-A 559296 DSNU-32-40-PPS-A
50 195982 DSNU-32-50-P-A 196022 DSNU-32-50-PPV-A 559297 DSNU-32-50-PPS-A
60 5249369 DSNU-32-60-P-A 5249853 DSNU-32-60-PPV-A 5249970 DSNU-32-60-PPS-A
70 5249370 DSNU-32-70-P-A 5249854 DSNU-32-70-PPV-A 5249971 DSNU-32-70-PPS-A
80 195983 DSNU-32-80-P-A 196023 DSNU-32-80-PPV-A 559298 DSNU-32-80-PPS-A
100 195984 DSNU-32-100-P-A 196024 DSNU-32-100-PPV-A 559299 DSNU-32-100-PPS-A
125 195985 DSNU-32-125-P-A 196025 DSNU-32-125-PPV-A 559300 DSNU-32-125-PPS-A
150 5249371 DSNU-32-150-P-A 5249855 DSNU-32-150-PPV-A 5249972 DSNU-32-150-PPS-A
160 195986 DSNU-32-160-P-A 196026 DSNU-32-160-PPV-A 559301 DSNU-32-160-PPS-A
200 195987 DSNU-32-200-P-A 196027 DSNU-32-200-PPV-A 559302 DSNU-32-200-PPS-A
250 195988 DSNU-32-250-P-A 196028 DSNU-32-250-PPV-A 559303 DSNU-32-250-PPS-A
300 5249372 DSNU-32-300-P-A 5249856 DSNU-32-300-PPV-A 5249973 DSNU-32-300-PPS-A
320 195989 DSNU-32-320-P-A 196029 DSNU-32-320-PPV-A 559304 DSNU-32-320-PPS-A

2024/12 www.festo.com/catalogue/... 23
Round cylinders DSNU

Datasheet
Ordering data
Piston @ Stroke P– Elastic cushioning rings/ PPV – Pneumatic cushioning, PPS – Pneumatic cushioning,
plates at both ends adjustable at both ends self-adjusting at both ends
A– With position sensing A– With position sensing A– With position sensing
[mm] [mm] Part no. Type Part no. Type Part no. Type
40 10 5262529 DSNU-40-10-P-A – –
15 5262530 DSNU-40-15-P-A
20 5262531 DSNU-40-20-P-A
25 195990 DSNU-40-25-P-A 196030 DSNU-40-25-PPV-A 559305 DSNU-40-25-PPS-A
30 5262532 DSNU-40-30-P-A 5262705 DSNU-40-30-PPV-A 5262768 DSNU-40-30-PPS-A
40 195991 DSNU-40-40-P-A 196031 DSNU-40-40-PPV-A 559306 DSNU-40-40-PPS-A
50 195992 DSNU-40-50-P-A 196032 DSNU-40-50-PPV-A 559307 DSNU-40-50-PPS-A
60 5262534 DSNU-40-60-P-A 5262706 DSNU-40-60-PPV-A 5262769 DSNU-40-60-PPS-A
70 5262535 DSNU-40-70-P-A 5262707 DSNU-40-70-PPV-A 5262771 DSNU-40-70-PPS-A
80 195993 DSNU-40-80-P-A 196033 DSNU-40-80-PPV-A 559308 DSNU-40-80-PPS-A
100 195994 DSNU-40-100-P-A 196034 DSNU-40-100-PPV-A 559309 DSNU-40-100-PPS-A
125 195995 DSNU-40-125-P-A 196035 DSNU-40-125-PPV-A 559310 DSNU-40-125-PPS-A
150 5262536 DSNU-40-150-P-A 5262708 DSNU-40-150-PPV-A 5262772 DSNU-40-150-PPS-A
160 195996 DSNU-40-160-P-A 196036 DSNU-40-160-PPV-A 559311 DSNU-40-160-PPS-A
200 195997 DSNU-40-200-P-A 196037 DSNU-40-200-PPV-A 559312 DSNU-40-200-PPS-A
250 195998 DSNU-40-250-P-A 196038 DSNU-40-250-PPV-A 559313 DSNU-40-250-PPS-A
300 5262537 DSNU-40-300-P-A 5262709 DSNU-40-300-PPV-A 5262773 DSNU-40-300-PPS-A
320 195999 DSNU-40-320-P-A 196039 DSNU-40-320-PPV-A 559314 DSNU-40-320-PPS-A

50 25 196000 DSNU-50-25-P-A 196040 DSNU-50-25-PPV-A 559315 DSNU-50-25-PPS-A

40 196001 DSNU-50-40-P-A 196041 DSNU-50-40-PPV-A 559316 DSNU-50-40-PPS-A
50 196002 DSNU-50-50-P-A 196042 DSNU-50-50-PPV-A 559317 DSNU-50-50-PPS-A
80 196003 DSNU-50-80-P-A 196043 DSNU-50-80-PPV-A 559318 DSNU-50-80-PPS-A
100 196004 DSNU-50-100-P-A 196044 DSNU-50-100-PPV-A 559319 DSNU-50-100-PPS-A
125 196005 DSNU-50-125-P-A 196045 DSNU-50-125-PPV-A 559320 DSNU-50-125-PPS-A
160 196006 DSNU-50-160-P-A 196046 DSNU-50-160-PPV-A 559321 DSNU-50-160-PPS-A
200 196007 DSNU-50-200-P-A 196047 DSNU-50-200-PPV-A 559322 DSNU-50-200-PPS-A
250 196008 DSNU-50-250-P-A 196048 DSNU-50-250-PPV-A 559323 DSNU-50-250-PPS-A
320 196009 DSNU-50-320-P-A 196049 DSNU-50-320-PPV-A 559324 DSNU-50-320-PPS-A

63 25 196010 DSNU-63-25-P-A 196050 DSNU-63-25-PPV-A 559325 DSNU-63-25-PPS-A

40 196011 DSNU-63-40-P-A 196051 DSNU-63-40-PPV-A 559326 DSNU-63-40-PPS-A
50 196012 DSNU-63-50-P-A 196052 DSNU-63-50-PPV-A 559327 DSNU-63-50-PPS-A
80 196013 DSNU-63-80-P-A 196053 DSNU-63-80-PPV-A 559328 DSNU-63-80-PPS-A
100 196014 DSNU-63-100-P-A 196054 DSNU-63-100-PPV-A 559329 DSNU-63-100-PPS-A
125 196015 DSNU-63-125-P-A 196055 DSNU-63-125-PPV-A 559330 DSNU-63-125-PPS-A
160 196016 DSNU-63-160-P-A 196056 DSNU-63-160-PPV-A 559331 DSNU-63-160-PPS-A
200 196017 DSNU-63-200-P-A 196057 DSNU-63-200-PPV-A 559332 DSNU-63-200-PPS-A
250 196018 DSNU-63-250-P-A 196058 DSNU-63-250-PPV-A 559333 DSNU-63-250-PPS-A
320 196019 DSNU-63-320-P-A 196059 DSNU-63-320-PPV-A 559334 DSNU-63-320-PPS-A

24 www.festo.com/catalogue/... 2024/12
 Round cylinders DSNU

Datasheet
Ordering data
Piston @ Stroke P– Elastic cushioning rings/plates at both ends PPV – Pneumatic cushioning, adjustable at both ends
A– With position sensing A– With position sensing
[mm] [mm] Part no. Type Part no. Type
Variable stroke Variable stroke
8 1 ... 100 14326 DSNU-8-...-P-A –
10 1 ... 100 14325 DSNU-10-...-P-A
12 1 ... 200 14324 DSNU-12-...-P-A
16 1 ... 200 14323 DSNU-16-...-P-A 14320 DSNU-16-...-PPV-A
20 1 ... 320 14328 DSNU-20-...-P-A 14321 DSNU-20-...-PPV-A
25 1 ... 500 14327 DSNU-25-...-P-A 14322 DSNU-25-...-PPV-A

2024/12 www.festo.com/catalogue/... 25
Round cylinders DSNU

Ordering data – Modular product system

Ordering table
Size 8 10 12 16 20 25 Conditions Code Enter code
Module no. 193986 193987 193988 193989 193990 193991
Function Round cylinder, double-acting, based on ISO 6432 DSNU DSNU
Piston @ [mm] 8 10 12 16 20 25 q -...
Stroke [mm] 1 ... 100 1 ... 200 1 ... 320 1 ... 500 [1] q -...
Cushioning Elastic cushioning rings/plates at both ends q -P
– – Pneumatic cushioning, adjustable at both ends [2] q -PPV
– – – Pneumatic cushioning, self-adjusting at both [3] q -PPS
ends
Position sensing Via proximity switch [4] q -A -A
Cylinder end cap Lateral supply port, short end cap [5] q -MQ
Axial supply port, short end cap [5] -MA
With mounting flange at front (direct mounting), bearing cap [6] -MH
Piston rod type Through piston rod [7] q -S2

[1] -... Longer strokes on request

[2] PPV Not with MA. In combination with S6, S10, L, A1 not with piston diameter 12 mm
[3] PPS Not with MA, MH, S6, S10 and not with combination MQ-R3
[4] A Minimum stroke › 10 mm required for reliable sensing
[5] MQ, MA Not with S2, S10
[6] MH Not with combination S6-R3. Not with S10
[7] S2 Not with S10

-H- Note -H- Note

The bellows kit DADB must not be Cylinders with position sensing
used in combination with the vari- ­require a minimum stroke of 10 mm
ant MH. to ensure reliable sensing.
The running characteristics change Longer strokes on request
slightly when the bellows kit DADB is
combined with the variant S10 or L

26 www.festo.com/catalogue/... 2024/12
 Round cylinders DSNU

Ordering data – Modular product system

Ordering table
Size 8 10 12 16 20 25 Conditions Code Enter code
Extended male thread Extended male piston rod thread
[mm] 1 ... 15 1 ... 20 1 ... 25 1 ... 35 [8] -...K2
Shortened male thread Shortened male piston rod thread
[mm] 1 ... 4 1 ... 8 1 ... 10 [9] -...K6
Female thread Piston rod with female thread
– – – – (M4) (M6) [10] q -K3
Custom thread Special piston rod thread
– – – – – M10 -“...”K5
Extended piston rod at one end Piston rod extended at one end
[mm] 1 ... 50 1 ... 100 1 ... 110 1 ... 150 q ...K8
Temperature resistance Heat-resistant seals max. 120 °C [11] q -S6
Constant motion – – Slow speed (constant motion at low piston speeds) [12] -S10
Running characteristic Low friction [13] -L
Corrosion protection – – High corrosion protection q -R3
Wiper – – Increased chemical resistance [14] -A1
EU certification II 2GD [15] -EX4

[8] K2 Not with K3, K6

[9] K6 Not with K3
[10] K3 Not with K5
[11] S6 Not with S10
[12] S10 Not with R3, L
[13] L Not with MQ, MA, MH, S2, S6, S10
[14] A1 Not with MH, S6, S10, L
[15] EX4 Not with S6

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Round cylinders DSNU

Ordering data – Modular product system

Ordering table
Size 32 40 50 63 Conditions Code Enter code
Module no. 193992 193993 193994 193995
Function Double-acting round cylinder DSNU DSNU
Piston @ [mm] 32 40 50 63 q -...
Stroke [mm] 1 ... 500 [1] q -...
Cushioning Elastic cushioning rings/plates at both ends q -P
Pneumatic cushioning, adjustable at both ends [2] q -PPV
Pneumatic cushioning, self-adjusting at both ends [3] q -PPS
Position sensing Via proximity switch [4] q -A -A
Cylinder end cap Lateral supply port, short end cap [5] q -MQ
Axial supply port, short end cap [6] -MA
Mounting flange at front (direct mounting), bearing cap [7] -MH
Piston rod type Through piston rod [8] q -S2

[1] -... Longer strokes on request

[2] PPV Not with MA
[3] PPS Not with MA, MH, S6, S10, combination MQ-R3 and R8
[4] A Minimum stroke › 10 mm required for reliable sensing
[5] MQ Not with S2, S10
[6] MA Not with S2, S10 R8
[7] MH Not with combination S6-R3. Not with S10, R8
[8] S2 Not with S10

-H- Note -H- Note

The bellows kit DADB must not be Cylinders with position sensing
used in combination with the vari- ­require a minimum stroke of 10 mm
ant MH. to ensure reliable sensing.
The running characteristics change Longer strokes on request
slightly when the bellows kit DADB is
combined with the variant S10 or L

28 www.festo.com/catalogue/... 2024/12
 Round cylinders DSNU

Ordering data – Modular product system

Ordering table
Size 32 40 50 63 Conditions Code Enter code
Extended male thread Extended male piston rod thread
[mm] 1 ... 35 1 ... 70 [9] -...K2
Shortened male thread Shortened male piston rod thread
[mm] 1 ... 8 1 ... 10 [10] -...K6
Female thread Piston rod with female thread
(M6) (M8) (M10) [11] q -K3
Custom thread Special piston rod thread
M10 M12 M16 -“...”K5
Extended piston rod at one end Piston rod extended at one end
[mm] 1 ... 500 q ...K8
Temperature resistance Heat-resistant seals max. 120 °C [12] q -S6
Constant motion Slow speed (constant motion at low piston speeds) [13] -S10
Running characteristic Low friction [14] -L
Corrosion protection High corrosion protection [15] q -R3
Wiper Dust protection [16] -R8
Increased chemical resistance [17] -A1
Metal scraper [18] -A6
EU certification II 2GD [19] -EX4

[9] K2 Not with K3, K6

[10] K6 Not with K3
[11] K3 Not with K5
[12] S6 Not with S10, S1
[13] S10 Not with R3, R8, L
[14] L Not with MQ, MA, MH, S2, S6, S10
[15] R8 Not with MA, MH, S10, L, R3, A1, PPS
[16] R3 Not with R8
[17] A1 Not with MH, S6, S10, L, R8
[18] A6 Not with S10, L, MH, P, PPS, S6, R3, EX4
[19] EX4 Not with S6, S10

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Round cylinders DSNU, for manufacturing lithium-ion batteries

Ordering data – Modular product system

Ordering table
Size 8 10 12 16 20 25 32 40 Conditions Code Enter code
Module no. 8150747 8149443 8149444 8149445 8149446 8149447 8149448 8149449
Function Standards-based cylinder, double-acting, based on ISO 6432 DSNU DSNU
Piston @ [mm] 8 10 12 16 20 25 32 40 q -...
Stroke [mm] 1 ... 100 1 ... 200 1 ... 320 1 ... 500 [1] q -...
Cushioning Elastic cushioning rings/plates at both ends q -P
– – Pneumatic cushioning, adjustable at both ends q -PPV
– – – Pneumatic cushioning, self-adjusting q -PPS
Position sensing Via proximity switch q -A -A
Special material properties None
Recommended for production facilities for manufacturing lithium-ion batteries [2] -F1A
Cylinder end cap Standard
Lateral supply port, short end cap q -MQ
Axial supply port, short end cap [3] -MA
Piston rod type Piston rod at one end
Through piston rod [4] q -S2

[1] -... Longer strokes on request

[2] F1A With A only
[3] MA Not with PPV, PPS
[4] S2 Not with MQ, MA

-H- Note
Cylinders with position sensing
require a minimum stroke of 10 mm
to ensure reliable sensing.
Longer strokes on request

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 Round cylinders DSNU, for manufacturing lithium-ion batteries

Ordering data – Modular product system

Ordering table
Size 8 10 12 16 20 25 32 40 Conditions Code Enter
code
Extended male thread Extended male piston rod thread
[mm] 1 ... 15 1 ... 20 1 ... 25 1 ... 35 [5] -...K2
Shortened male thread Shortened male piston rod thread
[mm] 1 ... 4 1 .. 8 [6] -...K6
Female thread Piston rod with female thread
– – – – (M4) (M6) (M8) q -K3
Custom thread Special piston rod thread
– – – – – M10 M12 [7] -“...”K5
Extended piston rod at one end Piston rod extended at one end
[mm] 1 ... 50 1 ... 100 1 ... 110 1 ... 150 1 ... 500 q -...K8

[5] K2 Not with K3

[6] K6 Not with K2, K3
[7] K5 Not with K3

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Round cylinders DSNU-KP, with clamping unit

Datasheet
P cushioning
-N- Diameter
8 ... 25 mm
ISO 6432

Adjustable pneumatic cushioning PPV

-N- Diameter
32 ... 63 mm

PPS cushioning
-T- Stroke length
1 ... 500 mm

-H- Note
Additional measures are required for use in safety-related applications;
in Europe, for example, the standards listed under the EC Machinery Directive
must be observed.
Without additional measures in accordance with legally specified minimum
requirements, the product is not suitable as a safety-oriented component in
control systems.

General technical data

Piston @ 8 10 12 16 20 25 32 40 50 63
Based on standard ISO 6432 –
Pneumatic connection M5 M5 M5 M5 G1/8 G1/8 G1/8 G1/4 G1/4 G3/8
Piston rod thread M4 M4 M6 M6 M8 M10x1.25 M10x1.25 M12x1.25 M16x1.5 M16x1.5
Stroke1) [mm] 1 ... 100 1 ... 200 1 ... 320 1 ... 500
Design Piston/piston rod/cylinder barrel
Cushioning
DSNU...-P Elastic cushioning rings/plates at both ends
DSNU-...-PPV – Cushioning, adjustable at both ends
DSNU-...-PPS – Cushioning, self-adjusting at both ends
Cushioning length
DSNU-...-PPV [mm] – 9 12 15 17 14 18 20 21
DSNU-...-PPS [mm] – 12 15 17 14 18 20 21
Position sensing Via proximity switch
Type of mounting Via through-hole
With accessories
Mounting position Any
Holding force of the clamping [N] 80 80 180 180 350 350 600 1000 1400 2000
unit
Axial backlash under load [mm] 0.2 0.3 0.5 0.8
Pneumatic connection on clamping unit M5 G1/8

1) Cylinders with position sensing require a minimum stroke of 10 mm to ensure reliable sensing.
Longer strokes on request

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 Round cylinders DSNU-KP, with clamping unit

Datasheet
Operating and environmental conditions
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Note on the operating/ Lubricated operation possible (in which case lubricated operation will always be required)
pilot medium
Operating pressure [MPa] 0.3 ... 1
[bar] 3 ... 10
Ambient temperature [°C] –10 ... +80
Corrosion resistance class CRC1)
DSNU-... 2 - Moderate corrosion stress
DSNU...-R3 3 - High corrosion stress

1) More information www.festo.com/x/topic/crc

Forces [N] and impact energy [J]

Piston @ 8 10 12 16 20 25 32 40 50 63
Theoretical force at 0.6 MPa (6 bar), advancing 30 47 68 121 189 295 483 753 1178 1870
Theoretical force at 0.6 MPa (6 bar), retracting 23 40 51 104 158 247 415 633 990 1682
Impact energy in the end positions 0.03 0.05 0.07 0.15 0.20 0.30 0.40 0.70 1 1.3
for P cushioning1)

1) The values are reduced by approx. 50% at an ambient temperature of 80 °C

Weight [g]
Piston @ 8 10 12 16 20 25 32 40 50 63
Product weight with 0 mm stroke 97.6 100.3 193 207.9 393.8 456 711.5 1287 2059 2556
Additional weight per 10 mm stroke 2.4 2.7 4 4.6 7.2 11 15.5 24 40 44

Moving mass with 0 mm stroke 7.5 8.5 18.5 23 44 71 121 230 413 459
Moving mass per 10 mm stroke 1 1 2 2 4 6 9 16 25 25

2024/12 www.festo.com/catalogue/... 33
Round cylinders DSNU-KP, with clamping unit

Datasheet
Average piston speed v as a function of payload m in combination with cushioning PPS
Piston @ 16
DSNU-16-PPS Piston @ 20
DSNU-20-PPS

2 2

1.5 1.5
v [m/s]

v [m/s]
1 1

0.5 0.5

0 0
0 1 2 3 4 5 0 1 2 3 4 5 6 7
m [kg] m [kg]

DSNU-16-50 DSNU-20-50
DSNU-16-100 DSNU-20-100
DSNU-16-200 DSNU-20-200

Piston @ 25
DSNU-25-PPS Piston @ 32
DSNU-32-PPS

1.6 1.6

1.2 1.2
v [m/s]

v [m/s]

0.8 0.8

0.4 0.4

0 0
0 2 4 6 8 10 12 0 2 4 6 8 10 12 14 16 18 20
m [kg] m [kg]

DSNU-25-50 DSNU-32-50
DSNU-25-100 DSNU-32-100
DSNU-25-200 DSNU-32-200

Piston @ 40
DSNU-40-PPS Piston @ 50
DSNU-50-PPS

1.2 1
1 0.8
0.8
v [m/s]

v [m/s]

0.6
0.6
0.4
0.4
0.2 0.2
0 0
0 5 10 15 20 25 30 0 5 10 15 20 25 30 35 40 45 50
m [kg] m [kg]

DSNU-40-50 DSNU-50-50
DSNU-40-100 DSNU-50-100
DSNU-40-200 DSNU-50-200

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 Round cylinders DSNU-KP, with clamping unit

Datasheet
Average piston speed v as a function of payload m in combination with cushioning PPS
Piston @ 63
DSNU-63-PPS Note:

Engineering software for Average piston speed

1
P cushioning = Stroke/movement time
0.8
Adjustable pneumatic cushioning PPV
v [m/s]

0.6 PPS cushioning

0.4 d https://www.festo.com/x/
0.2 pneumatic-sizing
0
0 10 20 30 40 50 60 70 80
m [kg]

DSNU-63-50
DSNU-63-100
DSNU-63-200

Max. transverse force Fq as a function of projection l

DSNU-...... 25
DSNU-8 DSNU-32 ... 63

60 320
55 300
280
50
260
45 240
40 220
200
35
180
Fq [N]

Fq [N]

30 160
25 140
120
20
100
15 80
10 60
40
5
20
0 0
0.1 1 10 100 1000 0.1 1 10 100 1000
l [mm] l [mm]

DSNU-8/10 DSNU-32
DSNU-12/16 DSNU-40
DSNU-20 DSNU-50/63
DSNU-25

2024/12 www.festo.com/catalogue/... 35
Round cylinders DSNU-KP, with clamping unit

Datasheet
Max. transverse force Fq as a function of projection l

DSNU-...-S2
DSNU-8 – Through piston rod
... 25-S2 DSNU-32 ... 63-S2

120 650
110 600

100 550

90 500

80 450
400
70
Fq [N]

350

Fq [N]
60
300
50
250
40
200
30
150
20
100
10 50
0 0
0.1 1 10 100 1000 0.1 1 10 100 1000
l [mm] l [mm]

DSNU-8/10 DSNU-32
DSNU-12/16 DSNU-40
DSNU-20 DSNU-50/63
DSNU-25

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 Round cylinders DSNU-KP, with clamping unit

Datasheet
Materials
Sectional view

1 2 4 5 6 7

3 8

Round cylinder
[1] Piston rod
DSNU-... High-alloy steel
DSNU-...-R3 High-alloy stainless steel
[2] Bearing cap Anodised aluminium
[3] Piston rod bearing Sintered bronze
[4] Housing, clamping unit Wrought aluminium alloy
[5] Clamping jaws Brass
[6] Cylinder barrel High-alloy stainless steel
[7] End cap Anodised aluminium
[8] Swivel bearing Polymer
– Piston, clamping unit POM
Spring Spring steel
Piston rod wiper seal TPE-U(PU)
LABS (PWIS) conformity VDMA24364-B1/B2-L
Cleanroom class Class 6 to ISO 14644-1
Note on materials RoHS-compliant

2024/12 www.festo.com/catalogue/... 37
Round cylinders DSNU-KP, with clamping unit

Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-8 ... 25

-H- Note
Piston rod nut is not included in
the scope of delivery for diameter
8 ... 20.
+ = plus stroke length

@ AM B B2 B3 BE BF CD D D4 D6 D7 D8
@ @ @ @ @ @
[mm] h8 H9
8 9.3
12 12 19.5 27 M12x1.25 12 4 16 12
10 11.3
12 13.3
16 16 24 32 M16x1.5 17 6 20 16 4.2 M5
16 17.3
20 20 20 21.3
22 27 36 M22x1.5 8 30 20
25 22 22 26.5

@ E1 EE EW G H1 H2 KK KV KW MM L L2
@
[mm]
8
8 34.5 13.5 M4 19 6 4 6 46
10
M5 10
12 50
M5 12 41 16 M6 24 8 6 9
16 56
20 M8 8 68
G1/8 16 16 62.5 18 32 11 12
25 M10x1.25 10 69.5

@ L6 L7 L8 L9 T3 PL VD WF XC ZJ ß1

[mm] ±1.2 ±1
8 – – –
29 ±0.65 8 16 93 91
10 – – –
6
12 – – 113 110
38 ±0.75 10 11 2 22 5
16 – – 120 116
20 47 ±0.75 24 142 139 7
13 4.5 20 8.2
25 48 ±0.75 28 152 145.5 9

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 Round cylinders DSNU-KP, with clamping unit

Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-8 ... 25
S2 – Through piston rod

+ = plus stroke length

++ = plus 2x stroke length

-H- Note
The thread types at both piston rod In combination with variant Q In combination with variant K8 the In combination with variant K8 and
ends are identical. The clamping unit (a page 46) the right piston rod piston rod extension is on the right Q, the piston rod extension is on the
is mounted at only one end. is square, the left piston rod round. piston rod only. The clamping unit is right, square piston rod only.
The clamping unit is mounted on the mounted on the left piston rod that
left-hand, round piston rod. is not extended.

@ ZJ ZM

[mm]
8
91 107
10
12 110 132
16 116 138
20 139 163
25 145.5 173.5

2024/12 www.festo.com/catalogue/... 39
Round cylinders DSNU-KP, with clamping unit

Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-32 ... 63

+ = plus stroke length

@ AM B B2 B3 BE BF CD D D1 D4 D6 D7
@ @ @ @ @ @ @
[mm] h9 H9
32 22 30 30 46 M30x1.5 26 10 41 42 33.6 20 4.4
40 24 38 36 56 M38x1.5 30 12 49 50 41.6 24 6.8
50 50 65 M45x1.5 57 52.4 30
32 45 33 16 60 8.5
63 54 72 M45x1.5 70 65.4 38

@ D8 E1 EE EW G H1 H2 KK KW MM L L2
@
[mm] f8
32 M5 M5 G1/8 16 19 67.5 23 M10x1.25 8 12 13 69.5
40 M8 G1/8 18 89 28 M12x1.25 16 15 84.6
G1/4 25
50 G1/8 107.5 32.5 10 86.2
M10 21 M16x1.5 20 16
63 G1/8 G3/8 28 121.5 36 94.2

@ L6 L7 L8 L9 T3 PL VD WF XC ZJ ß1

[mm] ±0.75 ±1
32 55 12.5 5 15 12 9 2 34 172.5 158.5 10
40 69 17 20 18 39 208.6 192.6 13
7 12
50 78 20 26 20 3 44 225.2 208.2
17
63 86 24 8 32 21 13 45 242.2 225.2

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 Round cylinders DSNU-KP, with clamping unit

Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-32 ... 63
S2 – Through piston rod

+ = plus stroke length

++ = plus 2x stroke length

-H- Note
The thread types at both piston rod In combination with variant Q In combination with variant K8 the In combination with variant K8 and
ends are identical. The clamping unit (a page 46) the right piston rod piston rod extension is on the right Q, the piston rod extension is on the
is mounted at only one end. is square, the left piston rod round. piston rod only. The clamping unit is right, square piston rod only.
The clamping unit is mounted on mounted on the left piston rod that
the left-hand, round piston rod. is not extended.

@ ZJ ZM

[mm]
32 158.5 192.5
40 192.6 231.6
50 208.2 252.2
63 225.2 270.2

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Round cylinders DSNU-KP, with clamping unit

Ordering data – Modular product system

Ordering table
Size 8 10 12 16 20 25 Conditions Code Enter code
Module no. 193986 193987 193988 193989 193990 193991
Function Round cylinder, double-acting, based on ISO 6432 DSNU DSNU
Piston @ [mm] 8 10 12 16 20 25 -...
Stroke [mm] 1 ... 100 1 ... 200 1 ... 320 1 ... 500 [1] -...
Cushioning Elastic cushioning rings/plates at both ends -P
– – Pneumatic cushioning, adjustable at both ends [2] -PPV
– – – Pneumatic cushioning, self-adjusting at both ends [3] -PPS
Position sensing Via proximity switch [4] -A -A
Cylinder end cap Lateral supply port, short end cap [5] -MQ
Axial supply port, short end cap [5] -MA
Piston rod type Through piston rod -S2

[1] -... Longer strokes on request

[2] PPV Not with MA
[3] PPS Not with MA, MH and not with combination MQ-R3
[4] A Minimum stroke › 10 mm required for reliable sensing
[5] MQ, MA Not with S2

-H- Note
Cylinders with position sensing
­require a minimum stroke of 10 mm
to ensure reliable sensing.
Longer strokes on request

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 Round cylinders DSNU-KP, with clamping unit

Ordering data – Modular product system

Ordering table
Size 8 10 12 16 20 25 Conditions Code Enter code
Extended male thread Extended male piston rod thread
[mm] 1 ... 15 1 ... 20 1 ... 25 1 ... 35 [6] -...K2
Shortened male thread Shortened male piston rod thread
[mm] 1 ... 4 1 ... 8 1 ... 10 [7] -...K6
Female thread Piston rod with female thread
– – – – (M4) (M6) [8] -K3
Custom thread Special piston rod thread
– – – – – M10 -“...”K5
Extended piston rod at one end Piston rod extended at one end
[mm] 1 ... 50 1 ... 100 1 ... 110 1 ... 150 ...K8
Clamping unit Attached -KP -KP

[6] K2 Not with K3, K6

[7] K6 Not with K3
[8] K3 Not with K5

2024/12 www.festo.com/catalogue/... 43
Round cylinders DSNU-KP, with clamping unit

Ordering data – Modular product system

Ordering table
Size 32 40 50 63 Conditions Code Enter code
Module no. 193992 193993 193994 193995
Function Double-acting round cylinder DSNU DSNU
Piston @ [mm] 32 40 50 63 -...
Stroke [mm] 1 ... 500 [1] -...
Cushioning Elastic cushioning rings/plates at both ends -P
Pneumatic cushioning, adjustable at both ends [2] -PPV
Pneumatic cushioning, self-adjusting at both ends [3] -PPS
Position sensing Via proximity switch [4] -A -A
Cylinder end cap Lateral supply port, short end cap [5] -MQ
Axial supply port, short end cap [5] -MA
Piston rod type Through piston rod -S2

[1] -... Longer strokes on request

[2] PPV Not with MA
[3] PPS Not with MA, MH and not with combination MQ-R3
[4] A Minimum stroke › 10 mm required for reliable sensing
[5] MQ, MA Not with S2

-H- Note
Cylinders with position sensing
­require a minimum stroke of 10 mm
to ensure reliable sensing.
Longer strokes on request

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 Round cylinders DSNU-KP, with clamping unit

Ordering data – Modular product system

Ordering table
Size 32 40 50 63 Conditions Code Enter code
Extended male thread Extended male piston rod thread
[mm] 1 ... 35 1 ... 70 [6] -...K2
Shortened male thread Shortened male piston rod thread
[mm] 1 ... 8 1 ... 10 [7] -...K6
Female thread Piston rod with female thread
(M6) (M8) (M10) [8] -K3
Custom thread Special piston rod thread
M10 M12 M16 -“...”K5
Extended piston rod at one end Piston rod extended at one end
[mm] 1 ... 500 ...K8
Clamping unit Attached -KP -KP

[6] K2 Not with K3, K6

[7] K6 Not with K3
[8] K3 Not with K5

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Round cylinders DSNU-Q, protected against rotation

Datasheet
P cushioning
-N- Diameter
12 ... 25 mm
ISO 6432

Adjustable pneumatic cushioning PPV

-N- Diameter
32 ... 63 mm

-T- Stroke length

1 ... 500 mm

General technical data

Piston @ 12 16 20 25 32 40 50 63
Based on standard ISO 6432 –
Pneumatic connection M5 M5 G1/8 G1/8 G1/8 G1/4 G1/4 G3/8
Piston rod thread M6 M6 M8 M10x1.25 M10x1.25 M12x1.25 M16x1.5 M16x1.5
Stroke1) [mm] 1 ... 160 1 ... 200 1 ... 250 1 ... 300 1 ... 400 1 ... 500
Design Piston
Protected against rotation with square piston rod
Max. torque at the piston rod [Nm] 0.10 0.10 0.20 0.45 0.8 1.1 1.5 1.5
Cushioning
DSNU-...-P Elastic cush- – Elastic cushioning rings/plates at both ends
ioning rings/
plates at both
ends
DSNU-...-PPV – Pneumatic cushioning adjustable at both ends
Cushioning length (PPV) [mm] – 12 15 17 14 18 20 21
Position sensing Via proximity switch
Type of mounting With accessories
Mounting position Any

1) Cylinders with position sensing require a minimum stroke of 10 mm to ensure reliable sensing.
Longer strokes on request

Operating and environmental conditions

12 16 20 25 32 40 50 63
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Note on the operating/ Lubricated operation possible (in which case lubricated operation will always be required)
pilot medium
Operating pressure
DSNU-... [MPa] 0.15 ... 11) 0.1 ... 1
[bar] 1.5 ... 101) 1 ... 10
DSNU-Q-...-S6 [MPa] – 0.1 ... 0.8
[bar] – 1 ... 8
Ambient temperature2)
DSNU-... [°C] –20 ... +80
DSNU-Q-...-S6 [°C] – 0 ... +120
Corrosion resistance class CRC3)
DSNU-... 2 - Moderate corrosion stress
DSNU-Q-...-R3 3 - High corrosion stress

1) For DSNU-12-... -Q- PPV (pneumatic cushioning adjustable at both ends): 0.2 ... 1 MPa (2 ... 10 bar)
2) Note operating range of proximity switches
3) More information www.festo.com/x/topic/crc

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 Round cylinders DSNU-Q, protected against rotation

Datasheet
ATEX1)
ATEX category for gas II 2G
Type of ignition protection for gas c T4
ATEX category for dust II 2D
Type of (ignition) protection for dust c 120 °C
Explosion-proof ambient temperature –20°C <= Ta <= +60°C
CE marking (see declaration of conformity) To EU Explosion Protection Directive (ATEX)
UKCA marking (see declaration of conformity) According to UK explosion regulations
Explosion protection certification outside EPL Db (GB)
the EU EPL Gb (GB)

1) Note the ATEX certification of the accessories.

Forces [N] and impact energy [J]

Piston @ 12 16 20 25 32 40 50 63
Theoretical force at 0.6 MPa (6 bar), advancing 68 121 189 295 483 753 1178 1870
Theoretical force at 0.6 MPa (6 bar), retracting 51 104 158 247 415 633 990 1682
Impact energy in the end positions 0.07 0.15 0.20 0.30 0.40 0.70 1 1.3
for P cushioning1)

1) The values are reduced by approx. 50% at an ambient temperature of 80 °C

Weight [g]
Piston @ 12 16 20 25 32 40 50 63
Product weight with 0 mm stroke 80 110 215 275 370.5 661 1087 1445
Additional weight per 10 mm stroke 4.1 4.7 7.1 10.9 15.5 24 40 44

Moving mass with 0 mm stroke 18.5 23 44 71 121 230 413 459

Moving mass per 10 mm stroke 2 2 4 6 9 16 25 25

Materials
Sectional view

1 3 4 5

2 6

Round cylinder
[1] Piston rod
DSNU-... High-alloy steel
DSNU-...-R3 High-alloy stainless steel
[2] Piston rod bearing Sintered bronze
[3] Bearing cap Anodised aluminium
[4] Cylinder barrel High-alloy stainless steel
[5] End cap Anodised aluminium
[6] Swivel bearing Polymer
– Piston rod wiper seal TPE-U(PU)
LABS (PWIS) conformity VDMA24364-B1/B2-L
Cleanroom class Class 6 to ISO 14644-1
Note on materials RoHS-compliant

2024/12 www.festo.com/catalogue/... 47
Round cylinders DSNU-Q, protected against rotation

Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-12 ... 25

-H- Note
Piston rod nut is not included in
the scope of delivery for diameter
12 ... 20.
+ = plus stroke length

@ AM B B1 BE BF CD D D4 E EE EW
@ @ @ @
[mm] h8 H9
12 13.3
16 16 5.5 M16x1.5 17 6 20 18 M5 12
16 17.3
20 20 7 20 21.3 26
22 M22x1.5 8 30 G1/8 16
25 22 9 22 26.5 27

@ G KK KV KW L L2 PL VD WF XC ZJ

[mm] ±1.2 ±1
12 50 75 72
10 M6 24 8 9 6 22
16 56 82 78
2
20 M8 68 24 95 92
16 32 11 12 8.2
25 M10x1.25 69.5 28 104 97.5

S2 – Through piston rod

-H- Note

The thread types at both piston rod ends are identical. The clamping unit is mounted at only one end. In combination
with variant Q, the right piston rod is square, the left piston rod round. The clamping unit is mounted on the left-hand, + = plus stroke length
round p­ iston rod. ++ = plus 2x stroke length

@ ZJ ZM
[mm]
12 110 132
16 116 138
20 139 163
25 145.5 173.5

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 Round cylinders DSNU-Q, protected against rotation

Datasheet
Dimensions Download CAD data a www.festo.com
DSNU-32 ... 63

@50/63

+ = plus stroke length

@ AM B B1 BE BF CD D D1 D4 E EE EW
@ @ @ @ @
[mm] h8 H9
32 22 30 10 M30x1.5 26 10 41 42 33.6 38 G1/8 16
40 24 38 12 M38x1.5 30 12 49 50 41.6 45 G1/4 18
50 32 45 16 M45x1.5 33 16 57 60 52.4 – G1/4 21
63 32 45 16 M45x1.5 33 16 70 60 65.4 – G3/8 21

@ G KK KW L L2 PL VD WF XC ZJ

[mm] ±1.2 ±1
32 19 M10x1.25 8 13 69.5 9 2 34 117.5 103.5
40 25 M12x1.25 10 15 84.6 12 3 39 139.6 123.6
50 25 M16x1.5 10 16 86.2 12 3 44 147.2 130.2
63 28 M16x1.5 10 16 94.2 13 3 45 156.2 139.2

S2 – Through piston rod

-H- Note

The thread types at both piston rod ends are identical. The clamping unit is mounted at only one end. In combination
with variant Q, the right piston rod is square, the left piston rod round. The clamping unit is mounted on the left-hand, + = plus stroke length
round piston rod. ++ = plus 2x stroke length

@ ZJ ZM

[mm]
32 158.5 192.5
40 192.6 231.6
50 208.2 252.2
63 225.2 270.2

2024/12 www.festo.com/catalogue/... 49
Round cylinders DSNU-Q, protected against rotation

Ordering data – Modular product system

Ordering table
Size 12 16 20 25 Conditions Code Enter code
Module no. 193988 193989 193990 193991
Function Round cylinder, double-acting, based on ISO 6432 DSNU DSNU
Piston @ [mm] 12 16 20 25 q -...
Stroke [mm] 1 ... 160 1 ... 200 1 ... 250 [1] q -...
Cushioning Elastic cushioning – – – q -P
rings/plates at
both ends
– Pneumatic cushioning, adjustable at both ends [2] q -PPV
Position sensing Via proximity switch [3] q -A -A
Cylinder end cap Lateral supply port, short end cap [4] q -MQ
Axial supply port, – – – [4] -MA
short end cap
– With mounting flange at front (direct mounting), [5] -MH
­bearing cap
Protection against rotation Square piston rod q -Q -Q
Piston rod type Through piston rod q -S2

[1] -... Longer strokes on request

[2] PPV Not with MA
[3] A Minimum stroke › 10 mm required for reliable sensing
[4] MQ, MA Not with S2
[5] MH Not with combination Q-R3

-H- Note -H- Note

The bellows kit DADB must not be Cylinders with position sensing
used in combination with the vari- ­require a minimum stroke of 10 mm
ant Q. to ensure reliable sensing.
Longer strokes on request

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 Round cylinders DSNU-Q, protected against rotation

Ordering data – Modular product system

Ordering table
Size 12 16 20 25 Conditions Code Enter code
Extended male thread Extended male piston rod thread
[mm] 1 ... 20 1 ... 25 1 ... 35 [6] -...K2
Shortened male thread Shortened male piston rod thread
[mm] 1 ... 4 1 ... 8 1 ... 10 [7] -...K6
Female thread Piston rod with female thread
– – (M4) (M6) [8] q -K3
Custom thread Special piston rod thread
– – – M10 -“...”K5
Extended piston rod at one end Piston rod extended at one end
[mm] 1 ... 100 1 ... 110 1 ... 150 q ...K8
Clamping unit Attached [9] -KP
Corrosion protection – High corrosion protection q -R3
EU certification II 2GD [10] -EX4

[6] K2 Not with K3, K6

[7] K6 Not with K3
[8] K3 Not with K5
[9] KP Only with S2. Not with R3
[10] EX4 Not with KP

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Round cylinders DSNU-Q, protected against rotation

Ordering data – Modular product system

Ordering table
Size 32 40 50 63 Conditions Code Enter code
Module no. 193992 193993 193994 193995
Function Double-acting round cylinder DSNU DSNU
Piston @ [mm] 32 40 50 63 q -...
Stroke [mm] 1 ... 300 1 ... 400 1 ... 500 [1] q -...
Cushioning Elastic cushioning rings/plates at both ends q -P
Pneumatic cushioning adjustable at both ends [2] q -PPV
Position sensing Via proximity switch [3] q -A -A
Cylinder end cap Lateral supply port, short end cap [4] q -MQ
Axial supply port, short end cap [4] -MA
Mounting flange at front (direct mounting), bearing cap [5] -MH
Protection against rotation Square piston rod q -Q -Q
Piston rod type Through piston rod q -S2

[1] -... Longer strokes on request

[2] PPV Not with MA
[3] A Minimum stroke › 10 mm required for reliable sensing
[4] MQ, MA Not with S2
[5] MH Not with combinations: Q-R3, S6-R3. Not with KP

-H- Note -H- Note

The bellows kit DADB must not be Cylinders with position sensing
used in combination with the vari- ­require a minimum stroke of 10 mm
ant Q. to ensure reliable sensing.
Longer strokes on request

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 Round cylinders DSNU-Q, protected against rotation

Ordering data – Modular product system

Ordering table
Size 32 40 50 63 Conditions Code Enter code
Extended male thread Extended male piston rod thread
[mm] 1 ... 35 1 ... 70 [6] -...K2
Shortened male thread Shortened male piston rod thread
[mm] 1 ... 8 1 ... 10 [7] -...K6
Female thread Piston rod with female thread
(M6) (M8) (M10) [8] q -K3
Custom thread Special piston rod thread
M10 M12 M16 -“...”K5
Extended piston rod at one end Piston rod extended at one end
[mm] 1 ... 500 q ...K8
Clamping unit Attached [9] -KP
Temperature resistance Heat-resistant seals max. 120 °C q -S6
Corrosion protection High corrosion protection q -R3
EU certification II 2GD [10] -EX4

[6] K2 Not with K3, K6

[7] K6 Not with K
[8] K3 Not with K5
[9] KP Only with S2. Not with S6, R3
[10] EX4 Not with KP, S6

2024/12 www.festo.com/catalogue/... 53
Round cylinders DSNU

Accessories
Foot mounting HBN/CRHBN

Scope of delivery:
HBN/CRHBN-...x1: 1 foot
HBN/CRHBN-...x2: 2 feet and 1 nut

Material:
HBN: Galvanised steel
CRHBN: High-alloy stainless steel
RoHS-compliant

+ = plus stroke length

Dimensions and ordering data
For @ AB AH AO AT AU R1 SA TR US XA XS
@
[mm] DSNU-KP DSNU-KP DSNU-KP
8, 10 4.5 16 5 3 11 10 68 97 25 35 73 102 24 –
12 5.5 20 6 4 14 13 78 116 32 42 86 124 32 –
16 5.5 20 6 4 14 13 84 122 32 42 92 130 32 –
20 6.6 25 8 5 17 20 102 149 40 54 109 156 36 –
25 6.6 25 8 5 17 20 103.5 151.5 40 54 114.5 162.5 40 –

For @ Basic version High corrosion protection

[mm] CRC1) Weight [g] Part no. Type CRC1) Weight [g] Part no. Type
8, 10 1 22 5123 HBN-8/10x1 – – –
1 54 5124 HBN-8/10x2 – – –
12, 16 1 43 q 5125 HBN-12/16x1 4 43 161866 CRHBN-12/16x1
1 107 q 5126 HBN-12/16x2 4 107 162999 CRHBN-12/16x2
20, 25 1 95 q 5127 HBN-20/25x1 4 94 161867 CRHBN-20/25x1
1 237 q 5128 HBN-20/25x2 4 236 162998 CRHBN-20/25x2

1) More information www.festo.com/x/topic/crc

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 Round cylinder DSNU

Accessories
Foot mounting HBN/CRH

Material:
HBN: Galvanised steel
CRH: High-alloy stainless steel
RoHS-compliant

+ = plus stroke length

Dimensions and ordering data

For @ AB AH AO AT AU SA TR US XA XS
@
[mm] DSNU-KP DSNU-KP DSNU-KP
32 7 28 7 4 14 97.5 151 52 66 117.5 171 44 –
40 9 33 10 5 20 124.6 192.1 60 80 143.6 206.1 54 –
50 9 40 10 6 20 126.2 202.7 70 90 150.2 226.7 58 –
63 9 45 10 6 20 134.2 218.7 76 96 159.2 243.7 59 –

For @ Basic version High corrosion protection

[mm] CRC1) Weight [g] Part no. Type CRC1) Weight [g] Part no. Type
32 1 353 195851 HBN-32x2 4 353 162951 CRH-32
40 1 611 195852 HBN-40x2 4 611 162952 CRH-40
50 1 916 195853 HBN-50x2 4 916 162953 CRH-50
63 1 1066 195854 HBN-63x2 4 1066 162954 CRH-63

1) More information www.festo.com/x/topic/crc

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Round cylinder DSNU

Accessories
Flange mounting FBN/CRFBN

Material:
FBN: Galvanised steel
CRFBN: High-alloy stainless steel

+ = plus stroke length

Dimensions and ordering data

For @ AB AT TF UF UR W ZF
@
[mm] DSNU-KP
8, 10 4.5 3 30 40 25 13 65 94
12 5.5 4 40 53 30 18 76 114
16 5.5 4 40 53 30 18 82 120
20 6.6 5 50 66 40 19 97 144
25 6.6 5 50 66 40 23 102.5 150.5

For @ Basic version High corrosion protection

[mm] CRC1) Weight [g] Part no. Type CRC1) Weight [g] Part no. Type
8, 10 1 12 5129 FBN-8/10 – – – –
12, 16 1 26 5130 FBN-12/16 4 26 161864 CRFBN-12/16
20, 25 1 52 5131 FBN-20/25 4 52 161865 CRFBN-20/25

1) More information www.festo.com/x/topic/crc

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 Round cylinder DSNU

Accessories
Flange mounting FBN/CRFV

Material:
FBN: Galvanised steel
CRFV: High-alloy stainless steel
RoHS-compliant

+ = plus stroke length

Dimensions and ordering data

For @ AB AT H1 TF TR US W ZF
@
[mm] _1.2 DSNU-KP
32 7 4 14 28 52 66 30 107.5 161
40 9 5 18 30 60 80 29 128.6 191.1
50 9 6 20 40 70 90 38 136.2 212.6
63 9 6 20 50 76 96 39 145.2 229.7

For @ Basic version High corrosion protection

[mm] CRC1) Weight [g] Part no. Type CRC1) Weight [g] Part no. Type
32 1 103 195855 FBN-32 4 103 161858 CRFV-32
40 1 191 195856 FBN-40 4 191 161859 CRFV-40
50 1 292 195857 FBN-50 4 292 161860 CRFV-50
63 1 367 195858 FBN-63 4 367 161861 CRFV-63

1) More information www.festo.com/x/topic/crc

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Round cylinder DSNU

Accessories
Swivel mounting SBN

Material:
Retaining ring: Anodised wrought
­aluminium alloy
Bearing: Bronze
Screws: Galvanised steel
Bracket: Steel
Cannot be used on the bearing cap in
combination with bellows kit DADB.

Dimensions and ordering data

For @ CM FL GL HB L1 LE MR RF RG UK UX CRC1) Weight Part no. Type

[mm] max. [g]

20/25 38.1+0.4 35 20 7 60.2 31 12 20 24 46.1 40 1 238 539927 SBN-20/25
32 46.1+0.2 40 27 9 72.2 35 13 28 30 56.1 50 1 361 539924 SBN-32
40 57.1+0.2 45 30 9 88.2 39 14 36 34 69.1 54 1 593 539925 SBN-40
50/63 70.1+0.4 50 34 9 102.2 44 16 42 35 82.1 65 1 894 539926 SBN-50/63

1) More information www.festo.com/x/topic/crc

Swivel mounting WBN

Material:
Galvanised steel
RoHS-compliant
Cannot be used on the bearing cap in
combination with bellows kit DADB.

+ = plus stroke length

Dimensions and ordering data

For @ TD TK TM UM UW XH XL CRC1) Weight Part no. Type
@
[mm] –0.01/ DSNU-KP [g]
–0.05
8, 10 4 6 26 38 20 13 65 94 1 20 8608 WBN-8/10
12 6 8 38 58 25 18 76 114 1 51 8609 WBN-12/16
16 6 8 38 58 25 18 82 120 1 51 8609 WBN-12/16
20 6 8 46 66 30 20 96 143 1 67 8610 WBN-20/25
25 6 8 46 66 30 24 101.5 149.5 1 67 8610 WBN-20/25
32 8 12 50 76 40 28 109.5 163 1 131 195863 WBN-32
40 10 15 60 92 50 31.5 126.1 193.6 1 238 195864 WBN-40
50 12 20 80 116 65 34 140.2 216.7 1 596 195865 WBN-50/63
63 12 20 80 116 65 35 149.2 233.7 1 596 195865 WBN-50/63

1) More information www.festo.com/x/topic/crc

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 Round cylinder DSNU

Accessories
Clevis foot LBN/CRLBN

Material:
LBN: galvanised steel
CRLBN: High-alloy stainless steel
RoHS-compliant

Dimensions and ordering data

For @ CM EK FL GL HB LE MR RG UX
@
[mm]
8, 10 8.1 4 24 +0.3/–0.2 13.8 4.5 21.5 5 12.5 20
12, 16 12.1 6 27 +0.3/–0.2 13 5.5 24 7 15 25
20, 25 16.1 8 30 +0.4/–0.2 16 6.6 26 10 20 32
32 16.1 10 35 +0.4/–0.2 18.5 6.6 31 11 24 35
40 18.1 12 40 +0.4/–0.2 24.5 9 35 13 30 45
50, 63 21.1 16 45 +0.5/–0.2 28 9 39 14 34 50

For @ Basic version High corrosion protection

[mm] CRC1) Weight [g] Part no. Type CRC1) Weight [g] Part no. Type
8, 10 1 20 6057 LBN-8/10 – – –
12, 16 1 40 q 6058 LBN-12/16 4 39 161862 CRLBN-12/16
20, 25 1 84 q 6059 LBN-20/25 4 82 161863 CRLBN-20/25
32 1 110 195860 LBN-32 4 106 195866 CRLBN-32
40 1 191 195861 LBN-40 4 185 195867 CRLBN-40
50, 63 1 300 195862 LBN-50/63 4 283 195868 CRLBN-50/63

1) More information www.festo.com/x/topic/crc

2024/12 www.festo.com/catalogue/... 59
Round cylinder DSNU

Accessories
Ordering data – Piston rod attachments Datasheets a Internet: piston rod attachment
Designation For @ Part no. Type Designation For @ Part no. Type
Rod eye SGS Rod clevis SGA
8 9253 SGS-M4 8 –
10 10
12 q 9254 SGS-M6 12
16 16
20 q 9255 SGS-M8 20
25 q 9261 SGS-M10x1.25 25
32 32 32954 SGA-M10x1.25
40 q 9262 SGS-M12x1.25 40 10767 SGA-M12x1.25
50 q 9263 SGS-M16x1.5 50 10768 SGA-M16x1.5
63 63

Self-aligning rod coupler FK Self-aligning rod coupler DARP

8 6528 FK-M4 8 8170110 DARP-M4-F
10 10
12 q 2061 FK-M6 12 8170115 DARP-M6-F
16 16
20 q 2062 FK-M8 20 8170116 DARP-M8-F
25 q 6140 FK-M10x1.25 25 8170119 DARP-M10P-F
32 32
40 q 6141 FK-M12x1.25 40 8170120 DARP-M12P-F
50 q 6142 FK-M16x1.5 50 8170121 DARP-M16P-F
63 63

Rod clevis SG Coupling piece KSG

8 6532 SG-M4 8 –
10 10
12 q 3110 SG-M6 12
16 16
20 q 3111 SG-M8 20
25 q 6144 SG-M10x1.25 25 32963 KSG-M10x1.25
32 32
40 q 6145 SG-M12x1.25 40 32964 KSG-M12x1.25
50 q 6146 SG-M16x1.5 50 32965 KSG-M16x1.5
63 63

Coupling piece KSZ Hex nut MSK

12 36123 KSZ-M6 16 189007 MSK-M16x1.5
16 20 q 189009 MSK-M22x1.5
20 36124 KSZ-M8 25
25 36125 KSZ-M10x1.25
32
40 36126 KSZ-M12x1.25
50 36127 KSZ-M16x1.5
63

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 Round cylinders DSNU

Accessories
Ordering data – Piston-rod attachments, corrosion-resistant Datasheets a Internet: piston rod attachment
Designation For @ Part no. Type Designation For @ Part no. Type
Rod eye CRSGS Rod clevis CRSG
12 195580 CRSGS-M6 8 8165295 CRSG-M4
16 12 13567 CRSG-M6
20 195581 CRSGS-M8 16
25 195582 CRSGS-M10x1.25 20 13568 CRSG-M8
32 25 13569 CRSG-M10x1.25
40 195583 CRSGS-M12x1.25 32
50 195584 CRSGS-M16x1.5 40 13570 CRSG-M12x1.25
63 50 13571 CRSG-M16x1.5
63

Self-aligning rod coupler CRFK

25 2305778 CRFK-M10x1.25
32
40 2305779 CRFK-M12x1.25
50 2490673 CRFK-M16x1.5
63

Ordering data – Mounting components Datasheets a Internet: clevis foot

Designation For @ Part no. Type Designation For @ Part no. Type
Clevis foot LBG Right-angle clevis foot LQG
32 31761 LBG-32 32 31768 LQG-32
40 31762 LBG-40 40 31769 LQG-40
50 31763 LBG-50 50 31770 LQG-50
63 31764 LBG-63 63 31771 LQG-63

Ordering data – Guide units Datasheets a Internet: feng

For @ Stroke With recirculating ball bearing guide With plain-bearing guide
[mm] Part no. Type Part no. Type
8, 10 1 ... 100 35197 FEN-8/10-...-KF 35196 FEN-8/10-...-GF
12, 16 1 ... 200 33481 FEN-12/16-...-KF 19168 FEN-12/16-...-GF
20 2 ... 250 33482 FEN-20-...-KF 19169 FEN-20-...-GF
25 2 ... 250 33483 FEN-25-...-KF 19170 FEN-25-...-GF

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Round cylinders DSNU

Accessories
Protective bellows kit DADB

General technical data

Type DADB-S1- 12 16 20 25 32 40 50 63
Max. stroke range of the cylinder1)
DSNU [mm] 10 ... 200 10 ... 200 10 ... 320 10 ... 500
Type of mounting Via threaded pin
Mounting position Any
Media resistance Dust, chippings, oil, grease, fuel (a Internet: media resistance)
Ambient temperature2) [°C] –10 ... +80
Corrosion resistance class CRC3) 3 - High corrosion stress

1) In conjunction with the bellows kit DADB

2) Note operating range of proximity switches and cylinder
3) More information www.festo.com/x/topic/crc

Materials
Sectional view

1 2 3 4

Protective bellows
[1] Connection Polyamide
[2] Adapter Polyamide
[3] Protective bellows NBR
[4] End piece Polyamide
– O-ring NBR
Note on materials RoHS-compliant
Suitable for the production of Metals with more than 5% by mass of copper, zinc or nickel are excluded from use. Exceptions are nickel in steel, chemically nickel-plated
Li-ion batteries surfaces, printed circuit boards, cables, electrical plug connectors and coils

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 Round cylinder DSNU

Accessories
Weight [g]
Type DADB-S1- 12 16 20 25
Stroke [mm]
10 ... 50 7 7 20 19
51 ... 100 9 9 32 31
101 ... 150 13 13 45 44
151 ... 200 16 16 58 57
201 ... 250 – – 73 72
251 ... 300 – – 85 84
301 ... 350 – – 100 98
351 ... 400 – – – 109
401 ... 450 – – – 124
451 ... 500 – – – 136

Type DADB-S1- 32 40 50 63
Stroke [mm] 50 63
10 ... 50 29 34 55 55
51 ... 125 41 49 75 75
126 ... 175 51 60 89 89
176 ... 250 66 78 113 113
251 ... 300 79 93 131 131
301 ... 350 92 108 149 149
351 ... 375 92 108 151 151
376 ... 425 104 122 169 169
426 ... 475 117 137 187 187
476 ... 500 117 137 189 189

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Round cylinders DSNU

Accessories
Travel speed v as a function of tubing length l

The bellows kit is a leak-free system.

To prevent unwanted media from being drawn in, the supply or exhaust air of the kit is ducted in the connection part via a
pressure compensation opening.
The pressure generated in the bellows kit by the positioning motion is primarily defined by the travel speed and tubing
length. The recommended tube length in relation to the travel speed of the drive can be read from the diagram.

Advancing... 25
DADB-12 DADB-32 ... 63

1.2 1.2
1 1
0.8 0.8
v [m/s]

v [m/s]
0.6 0.6
0.4 0.4
0.2 0.2
0 0
0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10
l [m] l [m]

DSNU-12/16 DSNU-32/50/63
DSNU-20/25 DSNU-40

Retracting... 25
DADB-12 DADB-32 ... 63

1.2 1.2
1 1
0.8 0.8
v [m/s]

v [m/s]

0.6 0.6
0.4 0.4
0.2 0.2
0 0
0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10
l [m] l [m]

DSNU-12/16 DSNU-32
DSNU-20/25 DSNU-40
DSNU-50/63

-H- Note
Tubing size and push-in fitting for pressure compensation hole
@ Tubing O.D. Push-in fitting
The push-in fittings in the adjacent [mm]
[mm] Part no. Type
­table must be used for the pressure
12, 16, 20, 25 6 q 153317 QSM-M5-6-I
compensation hole.
578371 NPQH-DK-M5-Q6-P10
Silencers can be used as an alterna-
578335 NPQH-D-M5-Q6-P10
tive. This reduces the travel speed
578359 NPQH-D-M5-S6-P10
slightly. 32, 40 8 q 186109 QS-G1/8-8-I
578376 NPQH-DK-G18-Q8-P10
578362 NPQH-D-G18-S8-P10
50, 63 12 q 186350 QS-G1/4-12
578344 NPQH-D-G14-Q12-P10
578366 NPQH-D-G14-S12-P10

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 Round cylinders DSNU

Accessories
Dimensions Download CAD data a www.festo.com

@ 12/16 20
Stroke A21) D1 D2 EE L1 L2 WF+A2 A21) D1 D2 EE L1 L2 WF+A2
@ @ @ @
[mm] max. max.
10 ... 50 23 45 22 46
51 ... 100 34 56 34 58
101 ... 150 48 70 47 71
151 ... 200 59 81 60 84
201 ... 250 – – 75 99
22 8.5 M5 5 3.2 29 8.5 M5 4.2 2.7
251 ... 300 – – 86 110
301 ... 350 – – 101 125
351 ... 400 – – – –
401 ... 450 – – – –
451 ... 500 – – – –

@ 25
Stroke A21) D1 D2 EE L1 L2 WF+A2
@ @
[mm] max.
10 ... 50 22 50
51 ... 100 34 62
101 ... 150 47 75
151 ... 200 60 88
201 ... 250 75 103
29 8.5 M5 4.2 2.7
251 ... 300 86 114
301 ... 350 101 129
351 ... 400 112 140
401 ... 450 127 155
451 ... 500 138 166

1) The dimension corresponds to the K8 value (extended piston rod) of the drive

2024/12 www.festo.com/catalogue/... 65
Round cylinders DSNU

Accessories
Dimensions Download CAD data a www.festo.com

@ 32 40
Stroke A21) D1 D2 EE L1 L2 WF+A2 A21) D1 D2 EE L1 L2 WF+A2
@ @ @ @
[mm] max. max.
10 ... 50 30 64 29 68
51 ... 125 48 82 44 83
126 ... 175 63 97 57 96
176 ... 250 82 116 73 112
251 ... 300 97 131 87 126
38 14 G1/8 12.9 5.4 46 14 G1/8 8.1 5.4
301 ... 350 113 147 101 140
351 ... 375 115 149 102 141
376 ... 425 131 165 116 155
426 ... 475 147 181 131 170
476 ... 500 149 183 132 171

@ 50/63
Stroke A21) D1 D2 EE L1 L2 WF+A2
@ @
[mm] max.
10 ... 50 30 74/75
51 ... 125 48 92/93
126 ... 175 58 102/103
176 ... 250 77 121/122
251 ... 300 88 132/133
57 17 G1/4 10.65 7
301 ... 350 99 143/144
351 ... 375 106 150/151
376 ... 425 117 161/162
426 ... 475 128 172/173
476 ... 500 135 179/180

1) The dimension corresponds to the K8 value (extended piston rod) of the drive

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 Round cylinders DSNU

Accessories
Ordering data – Bellows kit

An extended piston rod (order code K8) The necessary dimension for K8 as a Order example:
is absolutely essential when using a function of piston diameter and cylin- Selected round cylinder:
bellows kit a Ordering data – Modu- der stroke as well as the corresponding DSNU-25-320-PPV-A-MQ-...
lar product system. bellows kit is indicated in the table The dimension for the corresponding K8 value (see table): 101 mm
­below: Complete order reference for round cylinder:
DSNU-25-320-PPV-A-MQ-...-101K8
The corresponding bellows kit:
DADB-S1-25-S301-350

Cylinder data Protective bellows kit Cylinder data Protective bellows kit
@ Stroke Dimen- Part no. Type @ Stroke Dimen- Part no. Type
sion sion
[mm] [mm] for K8 [mm] [mm] for K8
[mm] [mm]
12 10 ... 50 23 553391 DADB-S1-12-S10-50 16 10 ... 50 23 553399 DADB-S1-16-S10-50
51 ... 100 34 553393 DADB-S1-12-S51-100 51 ... 100 34 553401 DADB-S1-16-S51-100
101 ... 150 48 553395 DADB-S1-12-S101-150 101 ... 150 48 553403 DADB-S1-16-S101-150
151 ... 200 59 553397 DADB-S1-12-S151-200 151 ... 200 59 553405 DADB-S1-16-S151-200

20 10 ... 50 22 553407 DADB-S1-20-S10-50 25 10 ... 50 22 553421 DADB-S1-25-S10-50

51 ... 100 34 553409 DADB-S1-20-S51-100 51 ... 100 34 553423 DADB-S1-25-S51-100
101 ... 150 47 553411 DADB-S1-20-S101-150 101 ... 150 47 553425 DADB-S1-25-S101-150
151 ... 200 60 553413 DADB-S1-20-S151-200 151 ... 200 60 553427 DADB-S1-25-S151-200
201 ... 250 75 553415 DADB-S1-20-S201-250 201 ... 250 75 553429 DADB-S1-25-S201-250
251 ... 300 86 553417 DADB-S1-20-S251-300 251 ... 300 86 553431 DADB-S1-25-S251-300
301 ... 320 101 553419 DADB-S1-20-S301-350 301 ... 350 101 553433 DADB-S1-25-S301-350
351 ... 400 112 553435 DADB-S1-25-S351-400
401 ... 450 127 553437 DADB-S1-25-S401-450
451 ... 500 138 553439 DADB-S1-25-S451-500

32 10 ... 50 30 553441 DADB-S1-32-S10-50 40 10 ... 50 29 553461 DADB-S1-40-S10-50

51 ... 125 48 553443 DADB-S1-32-S51-125 51 ... 125 44 553463 DADB-S1-40-S51-125
126 ... 175 63 553445 DADB-S1-32-S126-175 126 ... 175 57 553465 DADB-S1-40-S126-175
176 ... 250 82 553447 DADB-S1-32-S176-250 176 ... 250 73 553467 DADB-S1-40-S176-250
251 ... 300 97 553449 DADB-S1-32-S251-300 251 ... 300 87 553469 DADB-S1-40-S251-300
301 ... 350 113 553451 DADB-S1-32-S301-350 301 ... 350 101 553471 DADB-S1-40-S301-350
351 ... 375 115 553453 DADB-S1-32-S351-375 351 ... 375 102 553473 DADB-S1-40-S351-375
376 ... 425 131 553455 DADB-S1-32-S376-425 376 ... 425 116 553475 DADB-S1-40-S376-425
426 ... 475 147 553457 DADB-S1-32-S426-475 426 ... 475 131 553477 DADB-S1-40-S426-475
476 ... 500 149 553459 DADB-S1-32-S476-500 476 ... 500 132 553479 DADB-S1-40-S476-500

50 10 ... 50 30 553481 DADB-S1-50-S10-50 63 10 ... 50 30 553501 DADB-S1-63-S10-50

51 ... 125 48 553483 DADB-S1-50-S51-125 51 ... 125 48 553503 DADB-S1-63-S51-125
126 ... 175 58 553485 DADB-S1-50-S126-175 126 ... 175 58 553505 DADB-S1-63-S126-175
176 ... 250 77 553487 DADB-S1-50-S176-250 176 ... 250 77 553507 DADB-S1-63-S176-250
251 ... 300 88 553489 DADB-S1-50-S251-300 251 ... 300 88 553509 DADB-S1-63-S251-300
301 ... 350 99 553491 DADB-S1-50-S301-350 301 ... 350 99 553511 DADB-S1-63-S301-350
351 ... 375 106 553493 DADB-S1-50-S351-375 351 ... 375 106 553513 DADB-S1-63-S351-375
376 ... 425 117 553495 DADB-S1-50-S376-425 376 ... 425 117 553515 DADB-S1-63-S376-425
426 ... 475 128 553497 DADB-S1-50-S426-475 426 ... 475 128 553517 DADB-S1-63-S426-475
476 ... 500 135 553499 DADB-S1-50-S476-500 476 ... 500 135 553519 DADB-S1-63-S476-500

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Round cylinders DSNU

Accessories
Ordering data – Proximity switch for T-slot, magneto-resistive Datasheets a Internet: smt
Type of mounting Switching Electrical connection Cable length Part no. Type
­output [m]
N/O
Inserted in the slot from above, PNP Cable, 3-core 2.5 q 574335 SMT-8M-A-PS-24V-E-2.5-OE
flush with the cylinder profile, Cable, 2-core 5 q 8165237 SMT-8M-A-ZS-24V-E-5.0-OE
short design Plug M8x1, 3-pin 0.3 q 574334 SMT-8M-A-PS-24V-E-0.3-M8D
NPN Cable, 3-core 2.5 q 574338 SMT-8M-A-NS-24V-E-2.5-OE
Plug M8x1, 3-pin 0.3 q 574339 SMT-8M-A-NS-24V-E-0.3-M8D

Ordering data – Proximity switch for T-slot, magneto-resistive Datasheets a Internet: crsmt
Type of mounting Switching Electrical connection Cable length Part no. Type
­output [m]
N/O
Inserted in the slot from above, PNP Cable, 3-core 5.0 574380 CRSMT-8M-PS-24V-K-5.0-OE
flush with the cylinder profile Cable, 3-core 10.0 574381 CRSMT-8M-PS-24V-K-10.0-OE
Plug M8x1, 3-pin 0.3 574383 CRSMT-8M-PS-24V-K-0.3-M8D
Plug M12x1, 3-pin 0.3 574382 CRSMT-8M-PS-24V-K-0.3-M12

Ordering data – Proximity switch for T-slot, magnetic Hall Datasheets a Internet: sdbt
Type of mounting Switching Electrical connection Cable length Part no. Type
­output [m]
N/O or N/C contact, switchable
Inserted in the slot from above, PNP, Plug M8x1, 3-pin 0.3 q 8059120 SDBT-MSX-1L-PU-E-0.3-N-M8
flush with the cylinder profile, switchable to Cable, 3-core 2.5 q 8059121 SDBT-MSX-1L-PU-E-2.5-N-LE
short design NPN
NPN, Plug M8x1, 3-pin 0.3 q 8059123 SDBT-MSX-1L-NU-E-0.3-N-M8
can be Cable, 3-core 2.5 q 8059124 SDBT-MSX-1L-NU-E-2.5-N-LE
switched to
PNP

Ordering data – Mounting kits for proximity switches Datasheets a Internet: smbr
Designation For @ Part no. Type
Mounting kit SMBR-8
8 175091 SMBR-8-8
10 175092 SMBR-8-10
12 q 175093 SMBR-8-12
16 q 175094 SMBR-8-16
20 q 175095 SMBR-8-20
25 q 175096 SMBR-8-25
32 175097 SMBR-8-32
40 175098 SMBR-8-40
50 175099 SMBR-8-50
63 175100 SMBR-8-63

Ordering data – Mounting kits for proximity switches, temperature range S6 Datasheets a Internet: smbr
Designation For @ Part no. Type
Mounting kit SMBR-8
8 ... 63 538937 SMBR-8-8/100-S6

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 Round cylinder DSNU

Accessories
Ordering data – Connecting cables Datasheets a Internet: nebu
Electrical connection, left Electrical connection, right Cable length Part no. Type
[m]
Straight socket, M8x1, 3-pin Cable, open end, 3-core 2.5 q 541333 NEBU-M8G3-K-2.5-LE3
5 q 541334 NEBU-M8G3-K-5-LE3
Straight socket, M12x1, 5-pin Cable, open end, 3-core 2.5 q 541363 NEBU-M12G5-K-2.5-LE3
5 q 541364 NEBU-M12G5-K-5-LE3
Angled socket, M8x1, 3-pin Cable, open end, 3-core 2.5 q 541338 NEBU-M8W3-K-2.5-LE3
5 q 541341 NEBU-M8W3-K-5-LE3
Angled socket, M12x1, 5-pin Cable, open end, 3-core 2.5 541367 NEBU-M12W5-K-2.5-LE3
5 541370 NEBU-M12W5-K-5-LE3

Position transmitter

The position transmitter continuously It has an analogue output with an output sig-
senses the position of the piston. nal that is proportional to the piston position.

Ordering data – Position transmitter for T-slot Datasheets a Internet: sdas

Position Description Type of mounting Electrical Cable length Part no. Type
measuring ­connection [m]
range
š 52 Choice of two operating Inserted in the Plug M8x1, 4-pin, 0.3 8063974 SDAS-MHS-M40-1L-PNLK-PN-E-0.3-M8
modes: slot from above in-line
• two adjustable
switching outputs
• IO-Link®

Ordering data – Position transmitter for T-slot Datasheets a Internet: sdat

Position Analogue output Type of mounting Electrical Cable length Part no. Type
measuring [V] [mA] ­connection [m]
range
0 ... 50 – 4 ... 20 Inserted in the Plug M8x1, 4-pin, 0.3 1531265 SDAT-MHS-M50-1L-SA-E-0.3-M8
0 ... 80 slot from above in-line 1531266 SDAT-MHS-M80-1L-SA-E-0.3-M8
0 ... 100 1531267 SDAT-MHS-M100-1L-SA-E-0.3-M8
0 ... 125 1531268 SDAT-MHS-M125-1L-SA-E-0.3-M8
0 ... 160 1531269 SDAT-MHS-M160-1L-SA-E-0.3-M8

Ordering data – Position transmitter for T-slot Datasheets a Internet: smat

Position Analogue output Type of mounting Electrical Cable length Part no. Type
measuring [V] [mA] ­connection [m]
range
0 ... 40 0 ... 10 – Inserted in the Plug M8x1, 4-pin, 0.3 553744 SMAT-8M-U-E-0.3-M8D
slot from above in-line

Ordering data – Mounting kits for position transmitters Datasheets a Internet: smbr
Designation For @ Part no. Type
Mounting kit SMBR-8
8 175091 SMBR-8-8
10 175092 SMBR-8-10
12 q 175093 SMBR-8-12
16 q 175094 SMBR-8-16
20 q 175095 SMBR-8-20
25 q 175096 SMBR-8-25
32 175097 SMBR-8-32
40 175098 SMBR-8-40
50 175099 SMBR-8-50
63 175100 SMBR-8-63

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Round cylinder DSNU

Accessories
Ordering data – Mounting kits for position transmitters, temperature range S6 Datasheets a Internet: smbr
Designation For @ Part no. Type
Mounting kit SMBR-8
8 ... 63 538937 SMBR-8-8/100-S6

Ordering data – Connecting cables Datasheets a Internet: nebu

Electrical connection, left Electrical connection, right Cable length Part no. Type
[m]
Straight socket, M8x1, 4-pin Cable, open end, 4-core 2.5 541342 NEBU-M8G4-K-2.5-LE4
5 541343 NEBU-M8G4-K-5-LE4

Angled socket, M8x1, 4-pin Cable, open end, 4-core 2.5 541344 NEBU-M8W4-K-2.5-LE4
5 541345 NEBU-M8W4-K-5-LE4

Ordering data – One-way flow control valves Datasheets a Internet: grl

Connection Material Part no. Type
Thread For tubing O.D.
For exhaust air
M5 3 Metal design q 193137 GRLA-M5-QS-3-D
4 q 193138 GRLA-M5-QS-4-D
6 q 193139 GRLA-M5-QS-6-D
G1/8 3 q 193142 GRLA-1/8-QS-3-D
4 q 193143 GRLA-1/8-QS-4-D
6 q 193144 GRLA-1/8-QS-6-D
8 q 193145 GRLA-1/8-QS-8-D
G1/4 6 q 193146 GRLA-1/4-QS-6-D
8 q 193147 GRLA-1/4-QS-8-D
10 q 193148 GRLA-1/4-QS-10-D
G3/8 6 q 193149 GRLA-3/8-QS-6-D
8 q 193150 GRLA-3/8-QS-8-D
10 q 193151 GRLA-3/8-QS-10-D

For supply air

M5 3 Metal design q 193153 GRLZ-M5-QS-3-D
4 q 193154 GRLZ-M5-QS-4-D
6 q 193155 GRLZ-M5-QS-6-D
G1/8 3 q 193156 GRLZ-1/8-QS-3-D
4 q 193157 GRLZ-1/8-QS-4-D
6 q 193158 GRLZ-1/8-QS-6-D
8 q 193159 GRLZ-1/8-QS-8-D

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