How much Vacuum?

[Rick Gifford]

How much vacuum is needed for a vacuum chuck setup?

I have a Jet Mini. I have a Gomco vac pump (1/6 hp) that pulls 24 in HG, small pump but I'd like to put it to use if I can.

Appreciate any input on this, thanks!

[Dennis Peacock]

That should be plenty of vacuum. My setup pulls between 22 and 24 and works just dandy. :)

[Paul Andrews]

Rick,

24" of vacuum is enough, but the real concern is the cfm the pump will move. 4 cfm or greater is usually enough for most types of wood.

[Rick Gifford]

Thanks for the help.

So this one pulls ok... just dont know about CFM. Now just to figure that one out. Maybe I can find some specs online.

This is a pic of the pump:
http://www.kroslakent.com/imgshop/product/002767.jpg

The Gomco 402 is designed for heavier suction, as in recovery room, out-patient emergency room, or dental clinic use. It is easily moved and easily stored.

Suction System Includes:

Gauge and precision suction regulating valve
Creates up to 25" vacuum
So far finding specs hasnt been fruitfull. Might have to do some deep googling.

[Steve knight]

a trick I use if the wood leaks is to use something to seal it. myself I use elmers glue on wood on my vac table I cut on the cnc. something else may be better if your turning but the difference in the seal is big. I was cutting beech and lucky if I could get 10" with a very thin coat of elmers glue on the back of the board I get 20" or so out of the 24" my pump can pull.