Canned Vibration Isolators type WPS

To optimize the selection of a vibration isolator one should consider:

  • device’s full mass
  • amount of points of support
  • load concentration on a point of support
  • rotational speed of spinning/rotating elements

The drawing presents the fixing method of WPS® can(nned) vibration isolators to a mounted device.

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Canned vibration isolators selection and construction data tables.

Type and size of a vibration isolator Axial load range [kg] Natural vibrational frequency [Hz] Minimum percentile effectiveness of vibration isolation at a specified driving frequency in [Hz] or [rpm]
50 Hz 3000 rpm 25 Hz 1500 rpm
WPS 50 – A 5 – 25 10,2 – 6,3 96 81
WPS 50 – B 20 – 40 7,5 – 6,3 97 91
WPS 50 – C 35 – 55 7,0 – 6,3 98 91
WPS 50 – D 50 – 85 7,0 – 6,3 98 91
WPS 50 – E   75 – 125 7,0 – 6,3 98 91
WPS 50 – F 100 – 150 6,8 – 6,3 98 91
WPS 90 – A   40 – 100 5,3 – 4,2 99 96
WPS 90 – B   60 – 150 5,0 – 4,2 99 97
WPS 90 – C 100 – 260 5,0 – 4,2 99 97
WPS 90 – D 200 – 320 4,7 – 4,2 99 97
WPS 90 – E 280 – 520 4,8 – 4,2 99 97
WPS 90 – F 450 – 700 4,6 – 4,2 99 98
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Type and size of a vibration isolator Mass 1 pc. [kg] Dimensions [mm] Screw**
D A B C d H* hmin* M gmax
WPS 50 1,0 67 120 80 100 9 150 83 M12 47
WPS 90 3,3 108 190 120 158 17 223 138 M20 58
©All rights reserved.
* without load
** possibility of manufacturing a screw with a different thread M and length L.

Load-deflection characteristics with natural vibrational frequencies of WPS® type canned vibration isolators.

WPS 50 WPS 90
wps50 wps90

SCREW – with leveling, mounting in unthreaded through holes

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Order of operations:

1. anchor the vibration isolator to the floor or a support structure at the mounting location – make sure that the coaxiality is kept between the mounting screws and the holes in the base or the frame of a machine

2. lower a machine inserting the mounting screws into the holes in the base or the frame of the machine

3. level a machine by turning the lower leveling nuts right – lifting, left – lowering, level evenly on all mounting screws keeping the screws in a vertical position

4. secure the leveling of a machine by clamping a spring washer on the mounting screws using the upper locknut

5. verify the leveling of a machine after ca 1 week of operation and correct the leveling if required.

A machine should be leveled at a minimal distance from the floor or the support structure, keeping the mounting screw in a vertical position.