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I guess I'm most interested in max sustainable CFM at pressure - when the compressor is supplying as much air as it can during sandblasting or something else of that nature. For me, noise and max cfm are the most important things. I don't sandblast often, but when I do it ***** to have to wait...

How to determine cfm/scfm Here's a more in depth article on testing a compressors output. I'll try this when I get it hooked up.

Here's a link to an IR compressor. 5hp 220v 1ph 60 gal tank IR 5hp comp 18.1 scfm at 90psi. 22.5 running amps. Rotary compressor at 3.7kw ~ 19 amps max So screw compressor creates more cfm at higher pressure with less power requirements and a tank 1/2 the size.

Motor is 3.7kw. The oil is used to seal up the various small clearances so the screws can develop efficient pressure. I think a fair test is how many seconds it takes to fill a given size tank to a certain pressure. Then we can divide time by number of gallons to compare to allow for different...

Can you show me a 5hp piston compressor putting out 20cfm at 116psi?

I've used kerosene in the past. Much less flammable but not as aggressive cleaning. I floated it on water so the crud would drop down into the water layer. Pump has to be suspended in kerosene layer.

Rotary compressors move a lot of air for their horsepower. This unit can also match output to demand. So tank just evens out fluctuations

All piston compressors I have seen are pretty loud. I'd have to put it outside in its own shack. Then it's in an unconditioned environment. And compressors need airflow, so you need ventilation, which means sound leakage. Recip compressors are not very efficient and typically hard starting. I...

As I understand it, stoddard solvent is the same thing as paint thinner...

Current location of compressor... Baosi is the manufacturer of the airend. They say they use German manufactured CNC equipment to make their compressors.

Video of my compressor prior to shipment Compressor video

Try www.oppaircompressor.com Navigate to single phase rotary compressors

Yes. Ordered, actually. I also found that MAM controller is under $150 to replace if needed...

It has an 18 month warranty on motor & pump. I figure if it lasts that long it will probably last a long time with proper maintenance. I did pay with PayPal. I did see a 5hp motor & air end for around $600, so maybe a new pump wouldn't be the end of the world. As I understand it, the other major...

I spoke to Lilis Guo. She has been very responsive to my emails. [email protected]

Ordered up a unit today. Company has been very responsive and answered all my questions so far. They have stock, so will be shipping my unit out next week. Figure it will take up to a month to arrive. They seem to have an ISO certificate among other certifications. Perhaps someone in the know...

Oppair has quite a few YouTube videos spanning years. They seem like a legitimate company. Just because they do private label or direct doesn't make them off brand necessarily.

I think the motor is 3ph but the VFD allows for single phase input, with the benefits of speed control and soft start, among others.

Not an ad. Just trying to get some feedback. From what I can tell, sounds like a real company. They will overnight parts for free during warranty period. They sell the consumables kits with the machine. They have a good rating on Alibaba with a fair amount of reviews and traffic. With scheduled...

I want to be able to sandblast. 20cfm is about the minimum for an 1/8 nozzle. Should be plenty for most other uses. This machine is exceptionally quiet.