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Forum topic by cdaniels posted 06-12-2015 04:31 PM 935 views 0 times favorited 5 replies Add to Favorites Watch
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cdaniels

1311 posts in 969 days


06-12-2015 04:31 PM

Topic tags/keywords: wood stabilizing vacuum stabilizing burls pen blanks

I understand the whole process of building the system and I have everything priced out. but then I started looking at using a vacuum generator instead of a vacuum pump as it’s 60$ for a 3cfm vac pump and it’s only 10$ for a vac generator that goes up to -80. Since I already have a compressor this could potentially save me a lot of money but has anyone done it this way? Pro’s and cons?

-- Jesus was a carpenter... I'm just saying


5 replies so far

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Nubsnstubs

826 posts in 1197 days


#1 posted 06-13-2015 12:09 AM

What would be the difference in using a pressure rather than using vacuum? Paint tanks are easy to come by…...... ........... Jerry (in Tucson)

-- Jerry (in Tucson)

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cdaniels

1311 posts in 969 days


#2 posted 06-13-2015 12:11 AM

because a vacuum generator transforms compressed air into a vacuum inside the valve. it takes the place of using a vacuum pump. and since I already have the compressor than I already have cut out having to buy a vacuum pump. saves money, and space!

-- Jesus was a carpenter... I'm just saying

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cdaniels

1311 posts in 969 days


#3 posted 06-13-2015 12:13 AM

this is the best definition I have come across

SMC Vacuum Generators use compressed air to generate vacuum using a venturi. Vacuum levels down to -25 inHG (-85kPa) is obtained from single and multi stage units with suction flow greater than 7 SCFM (200 l/min.) SMC’s air vacuum generators can be connected via a manifold or used individually. These compact devices can also be customized to integrate suction filters, vacuum sensor switches, and supply/release valves onto the generator. Additionally, SMC’s generators can be configured to manage distribution of vacuum from a external vacuum source.

-- Jesus was a carpenter... I'm just saying

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Nubsnstubs

826 posts in 1197 days


#4 posted 06-13-2015 04:27 AM



because a vacuum generator transforms compressed air into a vacuum inside the valve. it takes the place of using a vacuum pump. and since I already have the compressor than I already have cut out having to buy a vacuum pump. saves money, and space!

- cdaniels

My question was not about how a vacuum generator works. It was why not use a pressure tank like a paint pot to cause whatever stabilizing agent you are using to migrate into the wood voids and cavities. Seven cfm can’t be sustained unless you have an industrial 2 stage compressor.
Using a pressure tank, you fill it with whatever pressure you need, close off the valve on the tank, take a nap, and in several hours, release the pressure. Remove the parts and start working on the stuff you just stabilized… Jerry (in Tucson)

-- Jerry (in Tucson)

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cdaniels

1311 posts in 969 days


#5 posted 06-13-2015 01:42 PM

The design I have uses vacuum pressure. I don’t have experience with it but it seems to be a common agreement that using vacuum instead of a pressure pot works better. Plus a pressure pot costs more

-- Jesus was a carpenter... I'm just saying

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