I am new here. I am thinking of doing some casting. Since spring
centrifugal casting machines are expensive here (I live in Poland)) I
am thinking about vacuum casting. I could not find any vacuum
casting table but as I see these are really simple things to build.
But I have a question about vacuum pump power. How strong it have to
be to do some small castings(ring, pendant or maybe someting else -
generaly small items). I have found not expensive small pump(about
90$ - its a lot of money) but I do not know will it be sufficient.
Its parameters aRe: 220V/50Hz, 1-stage, 1/4 HP, End vacuum 5Pa/0.05
mbar, performance 42l, 1300 rpm. I would be glad if someone could
tell me if this one could do the job ecause I dont have more money
Some of you will ask why you not try steam casting. I have tried it
with partial success. 6 tries - 2 success. I would like to do vacuum
casting because of it simplicity and high success ratio(at least I
have heard that)…
So, will that kind of pump will handle in casting small items?
Thanks for help,