I have the chance to acquire a small electric vacuum pump. It states on the base that it pulls 1 bar. When I place my finger over the inlet there is suction, but it doesn't feel very strong (although I have no idea how much 1 bar is supposed to feel like). I am wondering if it would be suitable as a vacuum pump for veneering?
A trawl of the interweb suggests most pumps are actually measured in the volume of air they remove in a given time rather than in 'bar'. However there are also a couple of references to veneering pumps being able to pull 25" of Hg. A further trawl reveals that 1 bar is equivalent to 750mm Hg, which would be 29" Hg, indicating that the '1 bar' pump I could get hold of would be sufficient.
So a couple of questions:
Anyone with a veneering pump able to put their over the inlet and tell me if there is light or strong suction?
Anyone able to confirm my calculations above are correct?
I could just acquire it and see if it works, but for various reasons if it's no good I would rather not take it as there are other users who could benefit from it.
Cheers,
Steve