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Thread: Vacuum Pump
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12th January 2015, 05:40 PM #1SENIOR MEMBER
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Vacuum Pump
Does anyone have experience or opinion on the suitability of this unit for vacuum chucking?
IND-VP125-d.jpgSpecificationModel:Single Stage Free Air Displacement:3CFM, 84 L/M Ultimate Vacuum:5 Pa Oil Capacity:300ml
Power / Voltage:1/4 HP, 220V / 50-60Hz Intake Fitting:1/4"&3/8" Rotating Speed:1440 RPM Net Weight:5.5 Kg
http://www.ebay.com.au/itm/New-Singl...-/111334141354
Bob
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12th January 2015 05:40 PM # ADSGoogle Adsense Advertisement
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12th January 2015, 08:29 PM #2
Can produce too much vacuum for a vacuum chuck but ok as long as you put in a valve to vary actual vacuum used.
Neil____________________________________________Every day presents an opportunity to learn something new
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13th January 2015, 08:04 AM #3SENIOR MEMBER
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13th January 2015, 08:26 PM #4
I'd like to set up one of these as well so I'm keen to hear how it works for you.
One thing I saw on Glenn Lucas' bowl turning DVD was a non-return valve set up on his vac line so if you lose power or the vacuum cuts out the piece you're working on won't fly off the lathe.
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14th January 2015, 07:29 AM #5SENIOR MEMBER
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14th January 2015, 09:39 AM #6Novice
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Bob. The non return valve is called a check valve. When you lose air on the pump side the back pressure from the bowl side should close the valve. They only allow flow in one direction. Ron.
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14th January 2015, 10:56 AM #7
I would never trust a bowl held on without the vacuum on
Neil____________________________________________Every day presents an opportunity to learn something new
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14th January 2015, 11:07 AM #8SENIOR MEMBER
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Couldn't agree with you more. My understanding is as woodturnerjosh said that it is there in case of an emergency, eg power failure, and would retain the vacuum long enough for the lathe to be switched off and the bowl removed safetly. Do you see a problem with that or do you have a better solution?
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14th January 2015, 11:54 AM #9
further to this question
would one of those be appropriate for pulling a vacuum in a vacuum pot/chamber?
eg to stabilise wood with Cactus juiceregards
Nick
veni, vidi, tornavi
Without wood it's just ...
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14th January 2015, 12:46 PM #10SENIOR MEMBER
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14th January 2015, 05:56 PM #11
As mentioned the non-return valve should allow you to safely stop the lathe.
No supplier or part was mentioned but I would be calling Enzed, Pirtek or another hose and fitting specialist.
Something else mentioned in his video is to use filters to make sure no debris/dust gets into the pump.
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14th January 2015, 10:47 PM #12Neil____________________________________________Every day presents an opportunity to learn something new
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