Hi Folks,(adsbygoogle = window.adsbygoogle || []).push({});

Could someone please help me?

I want to work out the power requirements for the torque or wattage required in an electric motor when evacuating a vacuum to a certain level.

The tube to be evacuated is 200 mm x 50 mm and the evacuation would be done using a pneumatic cylinder of 50 mm bore and 50 mm stroke.

The vacuum to be achieved and maintained is 2.5 psi or 5" Hg.

The pneumatic cylinder will be driven by an electric motor but how to calculate the motor requirements?

To keep it simple I will ignore losses due to friction etc.

Could someone could please help me with the formula to work that out?

Thanks,

Arnak

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# How to Calculate Work to produce a Vacuum?

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