Seismic Restrained Spring Mounts

Type SRSM - 1, 2, 4, 6, 9, 12 & 16 Spring Variants

Resistoflex Seismic Restrained Spring

Mounts are designed for Vibration
Isolation and Seismic Restraint of
equipments subjected to weight
variations and large external forces.

The mounts are designed to provide a

high 'G' SEISMIC RESTRAINT IN ALL
DIRECTIONS WITH BUILT-IN
SNUBBERS.

The SRSM mounts reduce transmission

of low frequency machinery vibration to
a building structure to avoid physical
damage or annoyance to the occupants.

SRSM Mounts are ideal for large or heavy

equipments mounted on structural frames
or concrete bases on roof tops even in
wind prone areas or active seismic zones
SRSM 2 due to the integral vertical & lateral
restraints. Equipments with large volumes
of liquid benefit because during "draining
down" upward movement is restricted thus
avoiding damage to equipment, pipework
and electrical connections.

DESIGN FEATURES
l High Strength all steel construction with
epoxy coated finish for corrosion
resistance and zinc plated fixings.
l Large laterally stable colour coded
epoxy coated helical steel springs with
nominal deflections of 25mm and
50mm and up to 50% overload
capacity.
l Vertical and lateral restraints have hold
down bolts in steel housing with large
dia rubber snubbers to avoid any
metallic contact and to provide
adequate radial clearance to ensure
vibration isolation efficiency is not
impaired.
l Equipments can be levelled since
working height and vertical limiting
stops are fully adjustable.
l Cross ribbed rubber acoustic seating
pad prevent skidding and transference
of high frequency vibration & sound.

SRSM 4 TYPICAL APPLICATIONS

HSI 442 SRSM APR 17

AIR HANDLING UNITS

COOLING TOWERS
CHILLERS & CONDENSERS
BOILERS & LARGE FANS

Vibration Shock Seismic Control

SEISMIC RESTRAINED SPRING MOUNTS SRSM

SRSM 25 - 1, 2, 4, 6, 9, 12 & 16 Spring Variants

PRODUCT SPRING RATED MAX. LOAD DEFLECTION D I M E N S I O N S (mm)
CODE COLOUR LOAD CAPACITY at Rated Load
(kgs) (kgs) (mm) +15% A B C D E F G Hxn I J K L
SRSM1-25/200 Red 200 300 25
SRSM1-25/300 Purple 300 450 25
SRSM1-25/400 Grey 400 600 25
SRSM1-25/500 Orange 500 750 25
SRSM1-25/600 Brown 600 900 25 161 265 100 295 12 12 100 - - 70 M16 250
SRSM1-25/700 Orange/Black* 700 1050 25
SRSM1-25/800 Black 800 1200 25
SRSM1-25/1000 Black/Black* 1000 1500 25
SRSM1-25/1200 Black/Silver* 1200 1800 25
SRSM2-25/400 Red 400 600 25
SRSM2-25/600 Purple 600 900 25
SRSM2-25/800 Grey 800 1200 25
SRSM2-25/1000 Orange 1000 1500 25
SRSM2-25/1200 Brown 1200 1800 25
161 350 100 380 12 18 100 - - 70 M20 335
SRSM2-25/1400 Orange/Black* 1400 2100 25
SRSM2-25/1600 Black 1600 2400 25
SRSM2-25/2000 Black/Black* 2000 3000 25
SRSM2-25/2400 Black/Silver* 2400 3600 25
SRSM4-25/800 Red 800 1200 25
SRSM4-25/1200 Purple 1200 1800 25
SRSM4-25/1600 Grey 1600 2400 25
SRSM4-25/2000 Orange 2000 3000 25
SRSM4-25/2400 Brown 2400 3600 25
163 350 170 380 12 18 125 M16 x 4 35 125 M24 335
SRSM4-25/2800 Orange/Black* 2800 4200 25
SRSM4-25/3200 Black 3200 4800 25
SRSM4-25/4000 Black/Black* 4000 6000 25
SRSM4-25/4800 Black/Silver* 4800 7200 25
SRSM6-25/1200 Red 1200 1800 25
SRSM6-25/1800 Purple 1800 2700 25
SRSM6-25/2400 Grey 2400 3600 25
SRSM6-25/3000 Orange 3000 4500 25
SRSM6-25/3600 Brown 3600 5400 25
173 440 170 480 16 22 125 M20 x 4 45 125 M27 420
SRSM6-25/4200 Orange/Black* 4200 6300 25
SRSM6-25/4800 Black 4800 7200 25
SRSM6-25/6000 Black/Black* 6000 9000 25
SRSM6-25/7200 Black/Silver* 7200 10800 25
SRSM9-25/1800 Red 1800 2700 25
SRSM9-25/2700 Purple 2700 4050 25
SRSM9-25/3600 Grey 3600 5400 25
SRSM9-25/4500 Orange 4500 6750 25
SRSM9-25/5400 Brown 5400 8100 25
173 440 255 480 16 22 200 M20 x 4 45 215 M27 420
SRSM9-25/6300 Orange/Black* 6300 9450 25
SRSM9-25/7200 Black 7200 10800 25
SRSM9-25/9000 Black/Black* 9000 13500 25
SRSM9-25/10800 Black/Silver* 10800 16200 25
SRSM12-25/2400 Red 2400 3600 25
SRSM12-25/3600 Purple 3600 5400 25
SRSM12-25/4800 Grey 4800 7200 25
SRSM12-25/6000 Orange 6000 9000 25
SRSM12-25/7200 Brown 7200 10800 25
186 525 255 580 20 26 200 M24 x 4 45 200 M30 505
SRSM12-25/8400 Orange/Black* 8400 12600 25
SRSM12-25/9600 Black 9600 14400 25
SRSM12-25/12000 Black/Black* 12000 18000 25
SRSM12-25/14400 Black/Silver* 14400 21600 25
SRSM16-25/3200 Red 3200 4800 25
SRSM16-25/4800 Purple 4800 7200 25
SRSM16-25/6400 Grey 6400 9600 25
SRSM16-25/8000 Orange 8000 12000 25
SRSM16-25/9600 Brown 9600 14400 25
186 540 340 600 20 28 275 M24 x 4 55 275 M33 515
SRSM16-25/11200 Orange/Black* 11200 16800 25
SRSM16-25/12800 Black 12800 19200 25
SRSM16-25/16000 Black/Black* 16000 24000 25
SRSM16-25/19200 Black/Silver* 19200 28800 25

E-mail : sales@resistoflex.in Mob.: 98182 00361 - 364

SEISMIC RESTRAINED SPRING MOUNTS SRSM

n = No. of holes ‘H’

SRSM 25 & 50 - 1, 2 Spring Variants

SRSM 25 & 50 - 4, 6, 9, 12, 16 Spring Variants

SRSM 50 - 1, 2, 4, 6, 9, 12 & 16 Spring Variants

PRODUCT SPRING RATED MAX. LOAD DEFLECTION D I M E N S I O N S (mm)
CODE COLOUR LOAD CAPACITY at Rated Load
(kgs) (kgs) (mm) +15% A B C D E F G Hxn I J K L
SRSM1-50/200 Green 200 300 50
SRSM1-50/300 Blue 300 450 50
190 265 100 295 16 18 100 M16 x 2 35 70 M16 200
SRSM1-50/400 White 400 600 50
SRSM1-50/500 Red 500 750 50
SRSM2-50/400 Green 400 600 50
SRSM2-50/600 Blue 600 900 50
SRSM2-50/800 White 800 1200 50 190 350 100 380 16 18 100 M16 x 2 35 70 M20 280
SRSM2-50/1000 Red 1000 1500 50
SRSM4-50/800 Green 800 1200 50
SRSM4-50/1200 Blue 1200 1800 50
190 350 170 380 16 18 100 M16 x 4 35 125 M24 330
SRSM4-50/1600 White 1600 2400 50
SRSM4-50/2000 Red 2000 3000 50
SRSM6-50/1200 Green 1200 1800 50
SRSM6-50/1800 Blue 1800 2700 50
SRSM6-50/2400 White 2400 3600 50 200 440 170 480 22 22 125 M20 x 4 45 125 M27 420
SRSM6-50/3000 Red 3000 4500 50
SRSM9-50/1800 Green 1800 2700 50
SRSM9-50/2700 Blue 2700 4050 50
200 440 255 480 22 22 200 M20 x 4 45 215 M27 420
SRSM9-50/3600 White 3600 5400 50
SRSM9-50/4500 Red 4500 6750 50
SRSM12-50/2400 Green 2400 3600 50
SRSM12-50/3600 Blue 3600 5400 50
SRSM12-50/4800 White 4800 7200 50 200 525 255 580 22 28 200 M24 x 4 45 200 M30 500
SRSM12-50/6000 Red 6000 9000 50
SRSM16-50/3200 Green 3200 4800 50
SRSM16-50/4800 Blue 4800 7200 50
SRSM16-50/6400 White 6400 9600 50 205 540 340 600 22 28 275 M24 x 4 55 275 M33 500
SRSM16-50/8000 Red 8000 12000 50

E-mail : sales@resistoflex.in Mob.: 98182 00361 - 364

SEISMIC RESTRAINED SPRING MOUNTS SRSM

ISOLATION EFFICIENCY AT TYPICAL MACHINE SPEEDS

MACHINE EFFICIENCY %
SPEEDS
(rpm) 25 mm DEFL. 50 mm DEFL.

300 34.0 75.2

500 83.3 92.3
750 93.2 96.7
1000 96.3 98.2
1200 97.4 98.7
1500 98.4 99.2

The above figures are theoretical values only based on

the vertical natural frequency of the sprung system
assuming infinitely stiff structural supports.
The effects of high frequency spring coil resonances
on low frequency performance are also ignored.

SPRING DEFLECTION

Spring stiffness is linear over its actual working range therefore, the actual
deflection for a given load can be calculated as follows:
Actual Load (Kg)
Actual Deflection (mm) = x Rated Deflection (mm)
Rated Load (Kg)

INSTALLATION MANUAL
Refer IM 025 for detailed Instructions

For more detailed information and technical assistance, please contact our Applications Engineering Group.

E-mail : sales@resistoflex.in Mob.: 98182 00361 - 364