CS4-I Portable PCP Air Compressor, 350W Powerful Motor,Max 5800Psi/40Mpa, Built-in Home Converter, Water and Fans Cooling, 5 Hours Continous Work, 12V Auto Stop Paintball Air Compressor

Buy from GX Pump via official sources with CONFIDENCE, they will stand behind their products. I have already ordered their new high pressure filter system because I trust them to do the right thing when a need arises.Pump works great had a small problem solved quickly by GX pump with a Control Board replacement.Pump builds pressure well, quiet in operation, slow fill rate does not over heat. I have worked on high pressure air and NITROX systems in and out of military. The number one enemy of compressors pumps longevity is excessive heat. This unit controls heat buildup well. Use this unit within its designed duty cycle and I am sure it will provide a long service life before rebuild.I ordered a pump on 27 March 2025 it arrived and would not run for a very long and shut down. It was tried with many options as per technical support via GX Pump. The unit-built pressure on deadhead tests just would not stay running. The failure mode did mode did not match the symptoms of the trouble shooting steps. This was an out of box failure and GX Pump thru its Amazon Official Sales Point replaced unit very quickly. I knew the reputation of these pumps were of high quality and like all factory-built items a poor example slipped thru. The replacement unit arrived quickly via Amazon 4 April 2025 I unboxed it and ran it. The unit had the same build date on tag as the first unit, still I had high hopes. No joy, same indications. Shutdowns happened running on 110 VAC and on 12 VDC. GX Pump Technical support tracked it down quickly to a Control Board (the only common failure point of both voltage modes.) This only affected one supplier Control Board and GX Pump sourced Control Boards that are another supplier (different design see pictures) and sent them out quickly. GX Pump also posted a video instruction on installation quickly.

Wow! So quiet!I am coming from the standard GX CS-3, and this is just WILDLY quieter (and faster!) - the reviews here made me wonder if this was a big enough upgrade to be worth double the cost of my old compressor - and yes. yes it is. Far more than 'worth it' this is shockingly quiet in comparison, I would have been happy wtih it being a fair bit louder even.Also the recommendation from folks about the vibration meter to monitor runtime for greasing? genuis. Thank you!

Fast shipping and so far so good. I'll update after more use.

I bought this to fill my 6.8L air tank to 5200psi and my Karma Red Panda to 5000 psi. The listing says that it can produce 5800 psi. I thought that at the price listed, it would perform. No so.It took over an hour to top off my 6.8L tank from 4500psi to 5200psi.It too more than 40 minutes to fill my 1L tank on my Karma Red Panda from 1700 psi to 5000 psi.That is totally UNSATISFACTORY. No doubt about that!I email the seller for assistant but no response.Additionally it is difficult to set the desired pressure on the gauge.I am returning this.

I don't have s lot of hours on this, but very happy so far.

I only had the compressor for two maybe three days but what I can see now it is very good I have three other compressors and this one seems to beat them all as of now, very quiet fast and the this thing just works it works very good I am thrilled and very happy to be a customer. This is a honest to God review of the compressor I have bought from Amazon thanks

Initially I had some questions for the vendor and they responded very quickly, so I was able to properly operate my compressor with confidence on its first use. This compressor is a lot quieter than my old compressor and has a built in power inverter that allows me to choose between 12v and 110v. It has built in water pump and reservoir so no need for external water pumps and buckets! It is surprisingly quick to fill my FX Dynamic Double Express (480cc + 700cc =1,180 cc) from 190 bar to 250 bar in about 2-3 minutes. And my 6.8l scba tank from 2600 psi to 4500 psi in about 25-30 minutes! This use to take my Young Hengh compressor hours and cooling off time in between to accomplish. The auto shut off works accurately and the entire unit is light and compact enough to take along anywhere. I chose this particular compressor because of its high 5800 psi capability to fill my Huben HK1 to its 5000psi capacity. So far so good. If it develops any issues I will update accordingly.

so far an excellent compressor. arrived in good shape. much quieter than the yong heng it is replacing and definitely less frantic . so far i have only used it to fill my bottle guns[ uragan and cricket 2 tac] have not filled a bottle yet. i would recommend