Hi
Would this Edwards rotary vane vacuum pump be ok for bagging and infusion ?
its used and selling for $500
That is not an Edwards pump.
Yes you are right ,its advertised as a Edwards pump ,I am going to try to get the price down if or when I go to have a look pointing out its not an Edwards pump. Would this Korean pump do the job ?
Could someone help to choose Edwards, Leybold, Pfeiffer pumps correct models for car panels(inc. doors or bonnet) infusion ? Is it a good choice :
http://www.ebay.com/itm/PFEIFFER-DUO-10-M-PK-D62-712-D-12-M-H-55KW-3-4HP-240V-3PH-VACUUM-PUMP-/231650096389?hash=item35ef6bf505:g:fRcAAOSwLVZVygqe
Hi,i have a good offer to buy edwards edm6 pump. Im not sure about its cfm properties ,found that it makes about 3.5cfm.Is it enough for car parts infusion as bonnet or door?
why not a ECVP425 from easycomposites? the technical data sheets says 99.995% vacuum, is that true? does it means 0.00005 bar? it’s a 45l/min pump for 169£
Because im from Russia and it is difficult to ship it even from Ebay when you have an offer with 100 dollars price here in Russia.
So maybe could anyone give real advise : is it enough or not ?
3,5 cfm is not much and a edwards edm6 is a very very old pump. It can be done with 3,5 cfm, but better spend some more money for a bigger pump and newer pump. If you want a Edwards, Alcatel, Busch, Varian or Leybold pump just send me a pm.
The amount of air per hour is not that important. That means it just takes more time to evacuate. The only important thing is end vacuum
Really thank you DDC :).
But… what is the real finale vacuum of this pump? Same as easycomposites’ one?
yes google is one of my best friends, but I can’t find any information about that pump
The pump is 50 years old or something, it’s not crazy you can’t find anything about it.
Ok,thank you for advise.
Maybe any actual model of that brand? Just to choose something in Ebay ?
Hello, noob question. Tried searching here and on google but to no avail…I have basic knowledge and equipment as I am just getting starting in making CF parts via vacuum forming.
I have a robinair 2 stage vac pump, 5cfm I believe… Is it common practice to let the pump run for the 6-7hr semi cure time, or do you just pull it to vacuum and let it sit (provided there is no leaks)?
Thanks
Sort of depends. A completely leak free bag is always ideal, and if you manage it then there is no need to keep the pump running. If you are wet-lay vacuum bagging then you can get away with a leak and just keep the pump running. If you are infusing then you absolutely must have a 100% leak free bag, critically. And in this case, there is no need to keep the pump running.
I would keep the pump running until the part is completely saturated as you can get some resin degas in the material during infusion which causes vacuum drop. Depending on resin used it can also make a reaction with tac spray an even fiber sizing. Volume of the catch pot would also play a role in this case.
Great, thanks for the help!