Members AzShooter Posted January 1, 2022 Members Report Posted January 1, 2022 I've been trying to use a 2 hp dry vac to form my holsters and I don't seem to be getting enough suction. What power do you feel is sufficient? Quote
CFM chuck123wapati Posted January 1, 2022 CFM Report Posted January 1, 2022 41 minutes ago, AzShooter said: I've been trying to use a 2 hp dry vac to form my holsters and I don't seem to be getting enough suction. What power do you feel is sufficient? I think you would need a vacuum pump. Its not the same as a vacuum for cleaning i have this one it works well. https://www.harborfreight.com/25-cfm-vacuum-pump-61245.html Quote Worked in a prison for 30 years if I aint shiny every time I comment its no big deal, I just don't wave pompoms. “I won’t be wronged, I won’t be insulted, and I won’t be laid a hand on. I don’t do these things to other people, and I require the same from them.” THE DUKE!
Members Hags Posted January 1, 2022 Members Report Posted January 1, 2022 Ditto the HF vac pump. I use the same one. Quote Not so retired RN. Living on the Washington Peninsula.
Members Dwight Posted January 1, 2022 Members Report Posted January 1, 2022 Me too . . . Harbor Freight sold me my vacuum pump . . . and it will collapse . . . and I mean COLLAPSE the leather on the mold . . . big time. I think I tried the giant vac I have once . . . and it just did not do the job . . . so off to Harbor Freight I went. I got this guy: https://www.harborfreight.com/25-cfm-vacuum-pump-61245.html May God bless, Dwight Quote If you can breathe, . . . thank God. If you can read, . . . thank a teacher. If you are reading this in English, . . . thank a veteran. www.dwightsgunleather.com
Members DrmCa Posted January 1, 2022 Members Report Posted January 1, 2022 I use the same pump for my cars' AC. It pulls 30 psi vacuum. Quote Machines: Mitsubishi DB-130 single needle, Kansai Special RX-9803/UTC coverstitch, Union Special 56300F chainstitch, Pfaff 335-17 cylinder arm walking foot, Bonis Type A fur machine, Huji 43-6 patcher, Singer 99 hand cranked, Juki DDL-553 single needle (for sale)
Northmount Posted January 1, 2022 Report Posted January 1, 2022 1 hour ago, DrmCa said: It pulls 30 psi vacuum. That would be 30" Hg (mercury) vacuum. Atmospheric pressure is nominal 14.7 psia. So you can't pull a vacuum exceeding that number. Not that this makes any difference to what you are doing. Just clarifying actual numbers. Quote
Members sbrownn Posted January 1, 2022 Members Report Posted January 1, 2022 5 hours ago, AzShooter said: I've been trying to use a 2 hp dry vac to form my holsters and I don't seem to be getting enough suction. What power do you feel is sufficient? It's not a matter of horsepower but rather the type of pump the motor is driving. Vacuum cleaners are designed to move a relatively large volume of air at a low level of suction using a centrifugal fan. What you need is a vacuum pump, a pump designed, not to move air, but to pull a vacuum. Quote
CFM chuck123wapati Posted January 1, 2022 CFM Report Posted January 1, 2022 36 minutes ago, Northmount said: That would be 30" Hg (mercury) vacuum. Atmospheric pressure is nominal 14.7 psia. So you can't pull a vacuum exceeding that number. Not that this makes any difference to what you are doing. Just clarifying actual numbers. 14.7 at sea level Quote Worked in a prison for 30 years if I aint shiny every time I comment its no big deal, I just don't wave pompoms. “I won’t be wronged, I won’t be insulted, and I won’t be laid a hand on. I don’t do these things to other people, and I require the same from them.” THE DUKE!
Members AzShooter Posted January 1, 2022 Author Members Report Posted January 1, 2022 Thanks for all the info. Seems I need a new pump. Quote
alpha2 Posted January 2, 2022 Report Posted January 2, 2022 On 1/1/2022 at 4:09 AM, chuck123wapati said: I think you would need a vacuum pump. Its not the same as a vacuum for cleaning i have this one it works well. https://www.harborfreight.com/25-cfm-vacuum-pump-61245.html I have that pump also, how do you handle the oil mist from the exhaust side of the pump? On 1/1/2022 at 7:20 AM, Dwight said: Me too . . . Harbor Freight sold me my vacuum pump . . . and it will collapse . . . and I mean COLLAPSE the leather on the mold . . . big time. I think I tried the giant vac I have once . . . and it just did not do the job . . . so off to Harbor Freight I went. I got this guy: https://www.harborfreight.com/25-cfm-vacuum-pump-61245.html May God bless, Dwight I'll ask you what I asked Chuck123Wapiti, how do you handle the oil mist from the exhaust side of the pump? Jeff Quote So much leather...so little time.
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