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Pad diameter can be calculated by theoretical suction force math formula and graphs.
Enter required information and click "Calculation ".

Work-piece weight N Required pad quantities piece Vacuum level - kPa Hoist direction horizontal hoist vertical hoist




Pad diameter mm and over should be selected.



  1. *1.As for Sponge pad, the inner diameter instead of outer diameter is used for at the time of calculation. Please refer the following theoretical suction force graph.
  2. *2.As for a property of pad of Bellows, Multi-bellows, Soft-bellows, Ultrathin pads, the theoretical suction force may exceed the strength of pad rubber itself depending on the vacuum level. Please check with actual application.