Thunder 4500Psi PCP Air Compressor,Refilling Up to 1.6L,Fast Fill for Airguns or Paintball Tank,Auto Shut Off,Water/Oil Free,Built-in Converter and Cooling Fan,350W Portable Pcp Pump

So far so good this thing has been filling my gun about once a day for a few weeks now and it works great. It has great power and fill speed it will fill a 300 bar air gun in less than 10 minutes. It's not too loud it sounds like a small vacuum cleaner indoors. It seems to be built well its very solid and well put together there is not loose parts or vibration sounds. The 12 volt dc gator clip and the AC invertor both power it well. So far it seems like a good unit it perfect for someone just getting into the hobby.

Working wonderfully, have had it it now for about 6 months and use it twice a week. Hasn't failed me yet, only fill to about 2500 just to be safe. Love this pump 💪

Dead on arrival. Will not build up any pressure. No external leaks, small amount of air coming out of charging probe. Excessive amount of water coming out of bleed valve.

I really like this little guy. It's not made for filling large bottles, but if you use it with common sense, you can fill any bottle with multiple charging sessions. I filled a 66 cu ft bottle with it for my PCP air rifle addiction. It takes an ungodly amount of sessions to do that from 0 psi, but it will do it just fine if you monitor temps and give it adequate time to cool off in between. Recharging the bottle after a pretty good day of shooting ( 300 ish shots through multiple different rifles, nothing over a .357) is typically 4 or 5 sessions spread over a 1 or 2 day time span. I run it for about 20 minutes the first time on the 20 oz tipman bottles I have (from 0 psi) and then let it cool off and finish the 3000 psi with about another 10 minutes of run time. It heats up faster when the pressure is high already, so watch the temps. It charges my Mega Pitbull Bulldog from 1500 to 3000 psi in about 12 minutes. Charges my Hatsan PCPs from 1000-1500 to 3000 psi in about the same time. Charges the Umarex Origin in about 8 minutes or less depending on current rifle pressure. It needs to be rested and cooled pretty much after each rifle unless it's just a light top off. It's not quiet. At all. There's a high volume fan that runs to keep it cool and it screams like a jet turbine while it is running. The pump itself isn't bad on noise level, it's similar to some of those 12 volt compressors you plug into your cigarette lighter in your car, except the stroke is a little slower. Between the pump and the fan running at the same time, you definitely want it in a room far away from where you are. I took mine apart to see how it was made and see what I could do for tweaks. Inside is a 12 volt motor from the little razor scooters they sold something like 15 years ago that had a little chain on it going to the rear wheel. I am confident that if it ever fails, replacements can be gotten for extremely cheap ($30 ish on amazon right now). Its attached to what looks like a 1.5" (ish) air cylinder with 4 ports. 2 ports are linked together with a copper tube, 1 is the inlet with a little bronze/brass filter, and then the outlet connected to the manifold with another short piece of copper pipe. The manifold has a pressure gauge that's not in PSI, but glows in the dark when hit with bright light. The outlet nipple is one of the ones with an oring on the threads where it is screwed in. The vent valve is a typical bolt type with a flat side to release the air without removing the bolt. I really wish it had a light to illuminate the pressure gauge, but it's no big deal. I replaced the gaauge with a pcp psi gauge anyway. I also have a pressure gauge with the wiring to to be able to turn the pump off at a set psi on the way from China that I will wire in. There is a cheap temperature monitor on it with a cheap little temp sensor. If this ever fails, again a quick search turns up many for under $5. I will install a 3rd switch to be able to power up the temp monitor without turning on the fan next. The temp sensor had been zip tied to the under side of the cylinder right where the fan would blow on it. I moved it to the top of the cylinder to more accurately reflect cylinder temp and hopefully preserve some life of the pump. It definitely showed higher temps faster than where it was at. When I first got it and was filling rifles and tanks at 3k psi, I would disconnect the hose with roughly 100 psi still in it after I opened the bleed valve to remove the rifle. When I did this, the burst of air that comes out was laden with moisture. To get rid of as much moisture as possible on the infeed side, I bought a blue, empty, home drinking water filter housing that typically goes under the sink and a gallon jug of desiccant. I removed the brass/bronze inlet filter on the cylinder and replaced it with a hose quick connect, put another matching connector on the filter and attached the hose between both. This dramatically reduced the amount of moisture from the hose after a charge. I then bought the black forty dollar 40 mpa filters to use on the exit side of the compressor, a couple of the short, blue aluminum filters for $20 and cannot detect any moisture going to the tank or rifle now. I use the big ones on the bottles and the full filling of rifles, the blue ones on top offs. Using oil less / greaseless compressors keeps the oil and grease out of the outflow of the compressor. You will need to filter the outfeed regardless of compressor type to get either water or grease / oil, so filters would need to be bought with any system you use. I really don't recommend using these compressors and filters for breathing air. While I'm sure many people have and have not had any issues, I did a little research into it and I'm not killing myself or destroying my lungs to save a few ten dollar bills. I have not used the other types of compressors, but I can carry this one with me in the truck if I have to, where as almost every other one I saw needed 120 volts. The other 12vdc compressors are essentially the same as this one, just more expensive and laid out a little differently, but will encounter the same issues I did. Moisture being the most prevalent on higher pressures. Moisture inside PCP rifles is a big no no. For the two hundred seventy five dollars they are charging for it, it is absolutely worth it. I actually bought a second one to make sure I have a spare if it quits, so that I could fill multiple rifles at once, or I could continue to fill while the other one cools off. I am modifying it the same way as the first one.

I have been using this for about 6 months.I use it to fill 2 pcp rifles.My third pcp is an AF Escape and I fill it by hand.It has run fine so far.Its really no louder than I would expect it to be.Fills my AF Texan faster than I expected it to.All in all it seems to be a pretty good pump for the money.Never has over heated on me even after I filled all 3 rifles one after the other.Not sorry I bought it at all. Update 1/13/2022.....Was filling a rifle tank today.Got to around 1000 psi and the compressor shut down.Called the company about warranty.He helped me figure out the problem that turned out to be a faulty switch.They will pay the cost.So my conclusion is they have great customer service.And the compressor is still going strong.Still 5 stars.

I purchased this for use with my Benjamin Pioneer Airbow. It does exactly what is says it will do. I took about 10 mins to pump up from zero to 3000 psi. Take notice the pressure gauge is in MegaPascals and not KPa. As long as you use it properly it should continue to be dependable. Also don't forget to leave the fan on after use to cool the internal components of the compressor back down. I don't think mine got hotter than like 45 degrees Celsius but i still left the fan on and cooled back down to room temperature. Not a bad buy for $140 thats for sure.

Amazing little compressor, everything works as it should. Auto stop works perfectly although a little tip, the needle itself is not where it stops at. There is a little pin under the needle that you look at to set it. A little loud indoors the fan is louder than the pump itself. Over all just an awesome compressor. I went from a cheap hand pump to this it is well worth it.

I absolutely love this compressor! My Hand pumping days are over. I've filled All of my PCP airguns multiple times with no issues at all. I did have a slight problem with a piece that was missing and Orcair support (Simon - you can find contact info in the manual) fixed the issue right away - fantastic customer support for sure! I definitely recommend this compressor and Orcair stands behind it! If you are still hand pumping, you need this compressor!

Excelente compra en relacion al costo-beneficio. Funciona muy bien en cilindros chicos sin necesidad de comprar compresores grandes. Portatil, ligero y muy versatil. 100% recomendable.

Very good product

Compressor works fine , takes 25 min to fill a tank , bit loud , use it outside. But power supply ceapped oit after filling maybe 10 tanks. No word back from sluplier , unable to contact directly

This pump is very expensive, only got it in March 2022. Not working after less then 5 months!!!! Want a replacement pump as it’s under warranty!!!!

Hola el compresor lo he usado un par de beses y se a comportado muy bien pienso que este equipo puede durar mucho tiempo si se sabe utilizar y muy importante no forzarlo por el calentamiento para mí está bien la compra lo recomiendo