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GAST Vacuum pump

Joined
Apr 25, 2004
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Doa

dogdriver said:
Does anyone know if a GAST DOA 163 AA pump would be sufficient for vacuum chucking?

Thanks, Todd

Since that usually stands for Dead On Arrival, I think I'd pass on that model :D

As noted already, not near enough CFM for a turning application. You would need a perfect seal and very tight wood. Get something pourous like oak on the lathe and it'll likely launch if you sneeze at it.

Keep looking, Dog, and set your minimum at 5 CFM of free flow [meaning without pulling a vacuum]
 
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Apr 29, 2004
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Another reason to stay away from the diaphram pump is that the way diaphram pumps work will cause the flow to "pulse". This means you will have a variation in your vacuum pulled as the diaphram cycles (think of how a bellows operates). A rotary vane due to the number of vanes removes this variation.

Wilford
 
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