NC Rotary Tables Big bore model

Standard type
RWB- 250・320・
RBS 400・500
TBS
Our flagship models equipped with state-of-the-art TSUDAKOMA
RWE/RWA technology. It realizes stronger clamping torque and strength of
RN
worm gears than previous model. A larger through-bore size enables
RWE/RWA-B
RNCV-B more ports number of rotary joint. RWB-400R

RNCM Specifications Unit: mm

RWB RWB-250 RWB-320 RWB-400 RWB-500

R ○ ○ ○ ○
RWB-K Handedness
RNCK L ○ ○ ○ ○
Table diameter φ250 φ320 φ400 φ500
RCH
RNC Center height 160 210 255 310
RCV Nose diameter φ105 φ150 φ200 φ220
Center bore
RNCV Through-bore φ80 φ120 φ160 φ181
Multi-Spindle
Table T-slot width＊1 12H7 14H7 14H7 18H7
RN-N
Guide block width 18h7 18h7 18h7 18h7
TWA/TN Servo motors（for FANUC） αiF8 αiF12 αiF12 αiF12

Inertia converted into motor shaft ×10-3kg･m2 1.27 3.53 4.63 4.25
TTNC
Net weight kg 125 250 360 620
THNC
Speed reduction ratio 1/90 1/120 1/120 1/180
Multi-Spindle
Table max. rpm min-1
TTNC-N (Motor rpm: 2,000min-1）
22.2 16.6 16.6 11.1

RDS Indexing accuracy

（the sum） sec 14 14 14 14
Clamp system Hydraulic or air-hydraulic＊2 Hydraulic or air-hydraulic＊2 Hydraulic or air-hydraulic＊2 Hydraulic or air-hydraulic＊2
RTV
RTT Clamp torque N・m 1,300 3,100 5,500 7,600
／Hydraulic pressure 3.5Mpa
RCB Strength of worm gears N･m 1,011 2,127 3,958 5,601
Vertical
NC Controllers
setting
kg 175 250 300 600
W

Accessories
Allowable Vertical setting（with tailstock） 350 500 600 1,200
work weight Vertical setting（with SSB） 900 1,500 1,800 3,600
Options

Technical Horizontal
kg 350 500 600 1,200
Information setting W

F F

  N 35,000 89,000 109,000 240,000

F×L F
Allowable load N・m 1,300 3,100 5,500 7,600
(when table is clamped) L

F×L L
F
N・m 1,500 5,300 7,800 17,000

W・D2 φD
Allowable J= 8 W
kg・m2 7 19 36 112
work inertia

Servo motors of other manufacturers P.66   

＊1 The tolerance of the table T-slot width is applicable to four standard slots arranged crosswise.  ＊２ Option
For tables with a diameter of 800 or more, please order a big bore type of the following models:
Tables diameter Model Center bore Specifications
φ 800 RCV-800 φ360 P.26
φ1000 RCV-1000 φ410 P.26
φ1250 RCV-1250 φ500 P.26

20
Dimensions Unit: mm

■ RWB-250R

RBS

φ105H7
φ80H7
φ250

φ94

φ95
324
314

TBS
160

10
15 37 108 20 RWE/RWA
173 331 106 5 175 65 180 RN
610 245
RWE/RWA-B
RNCV-B
RNCM
■ RWB-320R
RWB
RWB-K
RNCK
RCH

φ150H7
φ120H7

φ141

φ145
φ320
RNC
412

RCV
210

15 RNCV
15 45 145 35
Multi-Spindle
240
210 436 121 10 230 65 RN-N
767 305

TWA/TN

TTNC
■ RWB-400R
THNC
Multi-Spindle

φ200H7 TTNC-N
φ160H7

φ188

φ190
φ400
499

RDS
255

15
20 42 169 44
RTV
275
RTT
243 480 128 10 265 65
851 340 RCB

NC Controllers

■ RWB-500R Accessories

Options

Technical
φ220H7
φ181H7

Information
φ500

φ234

φ253

φ255
604
310

15
20 48.5 75 131 50.5
325

295 653 20 305 66

948 391

Note: The above dimensions are for FANUC servo motors. The dimensions of servo motors of other
manufacturers may be larger.

Clamping block and bolt Unit: mm

TypeⅠ
Type Q’ty T-slot pitch T-slot width A B C D E F G H I J K L M
C K
RWB-250 Ⅰ 4 50∼125 18 25 12 80 12 33 35 22 21 11 65 40 28 16
RWB-320 Ⅰ 4 73∼162 18 30 15 90 16 31 43 25 21 11 70 46 28 16
B

G H
A

RWB-400 Ⅰ 4 73∼193 18 30 15 90 16 31 43 25 21 11 70 46 28 16
φM
RWB-500 Ⅰ 4 73∼233 18 40 20 110 18 42 50 25 21 11 70 46 28 16
I

D E F □
Ｌ
Note: When using a machine with a T-slot pitch other than the above, use suitable clamping blocks and bolts that are
available on the market, or order custom-made ones from TSUDAKOMA.（Option）

21