Calculating the lifting force
The chart below indicates the relationship between the cup diameter and lifting force at various vacuum levels.
Please note a vacuum cup adheres to a surface as the surrounding or atmospheric pressure is greater than the pressure within the vacuum cup (consider a safety factor of 3 to 1).
| Vacuum Level (bar) |
0.17 | 0.34 | 0.51 | 0.68 | 0.75 | 0.82 | 0.88 | 0.93 | 1.00 |
| Cup Diameter (mm) | |||||||||
| 25 | 0.5 | 1.5 | 2.5 | 3.5 | 3.5 | 4.0 | 4.5 | 4.5 | 4.5 |
| 50 | 3.5 | 6.5 | 10.0 | 14.0 | 15.0 | 16.5 | 18.0 | 19.0 | 19.5 |
| 75 | 7.5 | 15.5 | 23.5 | 31.0 | 34.0 | 37.5 | 40.5 | 42.5 | 43.5 |
| 100 | 14.0 | 28.0 | 42.0 | 55.5 | 61.5 | 67.0 | 72.5 | 75.5 | 78.0 |
| 125 | 21.5 | 43.5 | 65.5 | 87.5 | 96.0 | 104.5 | 113.5 | 117.5 | 122.0 |
| 150 | 31.0 | 63.0 | 94.0 | 126.0 | 138.5 | 151.0 | 163.5 | 170.0 | 176.0 |
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