Help me choose an air compressor for sandblasting and shop.
Posted March 07, 2011 - 02:06 PM
Surplus Center - Tech Help
Do you have a check valve in that position?
Posted March 07, 2011 - 02:19 PM
Posted March 07, 2011 - 03:30 PM
I am going to pull the auxiliary valve off and I will hook my air line from the other compressor and regulator and set the kick out pressure on it. I am going to set it for 140 psi and once I get the new pulley for the motor I am going to set the pressure switch kick out to 145 psi. I was thinking 145/150 but I don't think I am going to notice the difference really in 5 extra psi.
Posted March 07, 2011 - 08:05 PM
Posted March 07, 2011 - 08:20 PM
Posted March 14, 2011 - 10:35 AM
I got a new 3/8" air line and some 3/8" quick disconnect fittings yesterday. I finally got a chance to try out the compressor for a little bit without going to full pressure until I get the new pulley which should be here today. I hooked up my die grinder and held the trigger and the compressor still continued building pressure. I am so used to just draining the tank and the compressor not keeping up with the old compressor.
Once I get the new pulley on I need to see about borrowing or getting an amp reading gauge so I can check the amps at full load on the motor with the new pulley. If they are low enough I will try and get the overload relay wired back in.
Posted March 14, 2011 - 11:44 AM
Posted March 14, 2011 - 11:49 AM
Ridicule? Don't know what you mean? But what I wanna know is........what's a compressor? LOL Sounds like the project is about to be complete. Ridicule or not, we do expect full reports once in full swing operation.
LOL, I don't know what an air compressor is
I am anxious to do some sandblasting with the pot blaster. I have some Cub Cadet wheel weights that are the perfect volunteers for it too. I know when sandblasting with the pot blaster and the old compressor I would no sooner turn the air on and until I would reach down to open the media valve the compressor was already running and I would be lucky if I got a minute out of it until it started loosing pressure. Will be easy to gauge the performance of the new compressor against that. I am guessing I shouldn't have to stop at all
Posted March 14, 2011 - 11:59 AM
you may wanna look into the hiflow fittings fromTPtools to for blasting ,it will make a difference in keeping that pot full of air
get the ones for a half inch and get a half in hose,the 1/2" I cannot find on the site(didnt look that hard either) but there in the catalog
Edited by thecoater, March 14, 2011 - 12:05 PM.
Posted March 14, 2011 - 01:09 PM
Posted March 14, 2011 - 02:11 PM
Posted March 14, 2011 - 03:47 PM
Posted March 14, 2011 - 05:10 PM
yep and 1/2 makes a big difference on an impact
Sure does! Our 1" impact won't take the truck rims off with 3/8 hose. Replaced with 1/2" and "varoom"...they are off!
Posted March 14, 2011 - 05:13 PM
you can have 1000cfm but pushing it threw a straw wont do you a bit of good ,every place theres a hook up or connection your restricting flow
Posted March 14, 2011 - 05:45 PM
Here are the readings I got:
0 psi startup > flashed to 183 and dropped to 22 amps
30 psi > 24 amps
70 psi > 27 amps
100 psi > 28.6 amps
135 psi at kickout > 30.5
I also got the constant speed unloader setup and working. It unloads at 130 psi and kicks back in at 105 psi. Only thing left to do is to try hooking the overload relay back up and see if it holds. I just can't remember where the two wires went when they had it hooked up lol.
I agree 1/2" air line will be ran to the blast cabinet. The 3/8" air line will work for 99% of our tasks and I will see about doing 1/2" air line on one of the other regulators.
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