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Do not over inflate. The correct amount of rubber tube pressure can easily be determined by a little experimenting. The pressure depends on the size of the drum, the rpm, and the work being done.
DO NOT exceed the maximum PSI. Possible damage to the drum or the operator could result from over inflation.
PSI = pound per square inch
Suggested Air Pressure for Pneumatic Drum Sanders
| Drum Size | Air Pressure PSI | Maximum PSI |
|---|---|---|
| 1 1/8" | 8 | 10 |
| 1.75" | 8 | 10 |
| 2.25" | 8 | 10 |
| 3.25" | 6 | 8 |
| 4 3/8" | 6 | 8 |
| 6.25" | 2 | 2.5 |
| 8.25" | 1.5 | 2 |