View Full Version : HF Vacuum Pump
Jeff Rich
04-03-2010, 7:26 AM
HF has a special on their 2.5 CFM Vacuum Pump.
Has anyone used this to build a vacuum Chuck?
Steve Schlumpf
04-03-2010, 9:53 AM
I believe Larry Marley uses that same pump in his system. You could always drop him a PM if you had specific questions.
http://www.sawmillcreek.org/member.php?u=21533
Doug Wolf
04-03-2010, 11:11 AM
Look at the following thread for picture of my friends Vac system using the Harbor 2.5 CFM pump
http://www.sawmillcreek.org/showthread.php?t=136272
Larry Marley
04-03-2010, 12:09 PM
HI Jeff,
Steve is right.
I do use this pump....
Good part,
28.5 inches of vacuum
runs on 120v
Very quiet
Not so good part,
The high vacuum come from using an oil bathed rotary vain, so it will vent oil mist. This will irritate your sinuses and can't be healthy.
I modified the exhaust side of the pump to connect to two filters in series to capture the oil mist.
While this pump is far better than the Holdfast, I think the optimum pump would draw 4 CFM, and I could live with a little more noise, and without the oil...
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