New two cylinder chinese air compressor.

I got a new two cylinder air compressor from the link below today. I didn't have time to do much with it. The weather was great for this time of year, got to 81 deg..So I had some outside work I needed to get done.

Now for the compressor. It cme in a cardboard box with a foam box inside, with another cardboard box, with one more cardboard box in it containing the compressor. Well packaged for sure. It came needing only the cooling lines hooked up. And oil put in the crankcase.
The cooling pump just goes into a bucket of water. I made a container out of a 5 gal tidy cats litter bucket. I had that on hand. But with the easy open lid it makes a good cooling tank. Filled it with water, pluged the pump up to the 110 outlet and let it run. No leaks in the water system.
Next pluged the compressor into the outlet checked the air blead valve to make sure it was closed and fired the compressor up. It was not conected to anything so air just run out the hose. I let it run for a couple minutes to let it warm up and check for oil leaks, and to make sure nothing was going to blow up. The compressor sounds a lot better than I was expecting. Not very loud at all. I was in an inclosed garage, and it was not hard on the ears at all. Nothing leaked, and nothing exploded.
My 90ci. 4500psi tank had 2500psi in it so hooked it to the compressor and hit the switch. I let the pump fill the line to the tank presure before I open the valve on the tank.

The compressor fills the line very fast. You have to be ready to open the valve pretty quick. When it got to 2500 I opened the valve and let the compressor do it's thing. I did not have a watch or clock to time it. But it filled the 90ci tank faster then my single cylinder compressor will fill one of my rifles. I filled all my rifles with it. You have to be right there with it. It will fill a rifle in no time. I also filled my 68cu in. tank. This is what I was looking for. Now I am going to fill my rifles with the small tank and just fill it back up and go at it again. I am sure it will fill my SCBA tank up in 30 minutes as advertised. But I'm not going to. It has expired.

I am very impressed with the compressor. It is better made then expected. Runs a lot smoother then expected, and makes a lot less noise then expected. It is a no frills unit. It has a pressure gauge, on and off switch, and a plug. Thats about it. The compressor does what they said it would do. It worked the first time. No fixing anything. The repair/ rebuild parts are cheap. The sales person I worked with on my first compressor and this one has been nothing short of wonderfull. The single cylinder had problems right from the begining. The sales rep. sent me the parts to fix it, and emailed me several times to check up on the compressor.

I have no ties to the company, I'm just so excited to have a compressor to air up my tanks, I could just p@@p. I will keep you informed how it does as time goes by.
https://www.aliexpress.com/store/product/4500PSI-300bar-30mpa-Double-Cylinder-pcp-pump-high-pressure-Electric-air-pump-1-piece-lot/2305020_32711540001.html?spm=2114.12010612.0.0.1ag2wK

Jimmy
 
"GLPalinkas"Looks great but I have one question. Is the square block that the outlet hose and relief valve are screwed in to an aluminum back or stainless steel. Looks aluminum and I'm not sure it would have the strength required. Thanks for any help.
It is aluminum. The passages are small and there are plenty of threads at the fittings. That leaves a lot of metal. I blocked off the hose and pumped it up to 5000 just to see of it would pump that high. It did and nothing burst. It does have a burst disk just in case one does not get it shut down for some reason. There is no way that manifold will blow at 5000 or under.

Jimmy
 
My SCBA tank is out dated. But I wanted to see how fast the compressor would fill one. I asked the sales rep how long he thought it would take to fill it from 2500 to 4500. He said he thought it would do it in 30 min. Well I hooked mine up the compressor and it had just under 2900psi in it. I was going to fill it for 10 minutes to see how much air it would put in the tank. Well in 10 minutes it pumped it up to just over 3400. So we are taking 550psi or so in 10 min.. I don't think it will top it off in 30 min. but I do think it will do it in 45 min. But I'm not going to put anymore air into an out of date tank.

Jimmy
 
The transportation cost of these can be hefty ranging from $160 to $250 depending on destination and mode of transport plus import duties if they exist. In Europe the transport would be around 160 Euro and VAT of 21% of the purchase cost and transportation cost together. On top of that would be import taxes, if they exist. So, in my case $336, plus $184$ plus 21 of $520 or $109 = $629 if no more taxes are due. FEDEX quotes $300 trans cost to Germany not $184. In actual fact using a 700 Euro cost in Europe is a good ball park. A buyer in California should expect about a $600 number plus Trump's tariff. Remember these compressors are not light weight at 30 kg or 66 lb plus packing. I have a new compressor like this one, never used in Germany that I would like to sell. If anyone has interest, send me a PM. No taxes or import duties.