Yong Heng instead of small compressors with 12v motors.

[JimD]

I tried a really small volume of water today, only 1 gallon, and even with two computer radiators the YH second stage climbed to 60 C in less than 5 minutes. So I tore it down and switched back to my previous setup with a 4.5 gallon sealed drywall bucket with 2-3 gallons of distilled water with water wetter in it. I do not change this water. In the summer sometimes I add a couple frozen soda bottles. Without ice I stay in the mid to low 50C range in the fall and winter but can get to 62 on a bottle fill in the summer. I am hoping the second radiator I added today helps with that.

My 1 gallon results would reinforce the benefit of a larger volume of coolant. It also seems to disprove my hope that I was getting rid of the thermal energy from the YH at about the rate the YH was generating it. My temperatures may not be plateauing, they may just be going up very slowly due to the radiators. That would likely also be the effect of a larger volume of coolant. But as long as I can keep it under 60C on a bottle fill I think the YH will give me reasonable service. I bought it in April of 2021.

 

[Ricklin]

More water more better is Def. my experience with El Cheapo too. A 5 gallon bucket is about right. Easy and effective. I could see making it portable...with a 2 wheel hand truck. Set the pump on top of the 5 gallon bucket with a touch of bleach and a touch of jet dry and done. Could even seal up the 5 gal. bucket tightly since the pump returns the water. We would be getting pretty close to a hundred pounds, thus the 2 wheel hand truck.

 

[Panzerfaust]

I’m adding this to the thread. Yong Heng failed on the 5th use, it was almost done topping off a 30 min tank , temp had not exceeded 62 ever, it only got that high once, the 2nd time I used it. Plenty of cooling water volume. It was almost to 4300 psi cut off point and i noticed puff of vapor leaking from top line as I went to turn it off to check for leak the pressure being pumped dropped suddenly to 1500 and I shut it down. Let it cool off took top line loose and retightened and restarted , it only made around 400 psi then stopped building presure, no funny noise, runs fine, just won’t make more than 400 psi. It happened day before the last day return window was still open, so it went back where it came from. At least it filled my tank before it decided to fail I guess. I can still hunt at least. That is number two failure with a compressor, as much as I like my air gun this whole making HPA part is aggravating to say the least. I’m not dropping 2k on a high pressure compressor to get dependability. I’m going to go with something recommended by the guy I got my gun from, a tuxing scuba compressor that is set up with 2 separate cylinders one for low pressure and one for high pressure. It is still water cooled and has a dual water/oil separator built in on the side of the unit. based on research I believe the high pressure piston failed in the yong heng which should not have happened based on the use and treatment of the unit. I was very easy on it , it never ran more than 22 minutes , it claimed a duty cycle of 45 minutes. What I’m planning to get is 502 dollars with the bottom part resembling a yong heng , but the cylinders are not stacked like the YH , they are separated , supposed to be more durable and efficient. I guess we will find out , if it doesn’t explode, one review on the thing the guy claims after 5 uses when he went to use it again it exploded , best I could tell anyway, it wasn’t written in English and translator doesn’t always translate accurately. The airgun shop guy says he has used his hard for at least 2 years with zero issues. I wish I was more optimistic. They are going to release 7000 psi compressors sometime soon supposedly , maybe one of those(if affordable) would hold up only pumping up to 4500psi. i also considered a 5800 psi unit but can’t find one that’s really affordable. So 7000 probably won’t be either. If this tuxing scuba thing doesn’t hold up I may run out of options I can afford. Just getting tanks filled somewhere isn’t an option for me due to location , nothing at all close by to get a high pressure air tank filled at all. Hopefully I can figure out the making HPA part of this hobby so I don’t have to basically give it up. I hope everyone else is having much much better luck with HPA.

 

[mrzip]

This group is Pro Yung Hang. Not saying that’s a bad thing. We all have budgets and expectations in this hobby. As with any Hobby.

 

[BlackICE]

It's a crap shoot buying low cost items from china. Sometimes you're lucky sometimes you're not. I suspect the infant mortality rate of these compressors is something like the order of 10% or more. If you're lucky you can get one that lasts for years if you treat it well. If you're unlucky you'll break the first time you turn the power on. Personally I don't like any of these compressors that are direct drive off the motor without a reduction gearbox or pulley system. These are designed at best to run at 50 hertz that is used in China and these motors are run at 60 hertz in the United States for example so are running it 6/5 over speed. Also two stages are not enough to reliabily compress air to 300 bars. So better to get something that has three or more stages.

 

[Chief Ten-Beers]

I just topped off both of My 90's. one was at 2700 the other at 3000, filled em both to 3500. Did a good job. Pleased with My "YH" so far.

 

[Ricklin]

The 50/60 Hz. is a bit of a red herring. Electric motor speed is based on the cycles per second of the power. The motors are engineered to run well on 50 or 60 Hz. We in the USA are far from the only ones that have 60 Hz. power. Both nominal voltage and Hertz (cycles per second) vary based on where you are in the world.

 

[coastal drifter]

Panzerfaust,
Agreed, three years in June for mine, no problem other than a leaking gauge. Semi-permanent in garage, set-up and break down bucket, hoses, and water pump each session. Don't use tank, just fill guns for home range use. A few other YH positives are inexpensive, easily found parts, good repair videos and power to pressurize post-compressor moisture filters. Caution needed to assure an authentic YongyIheng Pneumatic Company product is purchased, mountains of sub-par clones exist. Yong Heng produces 5 models; Simple, Hardcover, Set Pressure, Auto Stop and Digital. Hardcover and Set Pressure are recommended. Simple lacks Cyclonic Water Separator, Auto Stop is preset at factory (operator can't change) to stop @ 3,000 psi. Digital, OK, but price is up there. WMView attachment 499416

great set up! love the filters your running.

 

[coastal drifter]

This is to possibly save someone out there some anguish. This is also most likely for newbies like myself. When I started it was with gun, compressor, and a scope. Loved the gun so I ended up running comp almost everyday. Won’t bore with how it broke. After two months maybe it gave up in a way couldn’t repair. So didn’t want to get another one of the same thing, when you shop for them they all seem similar, the smaller size anyway. A Yong Heng is an option to upgrade from one of the small comps. If you can stand to put up with a bucket of cooling water. They are similar in price to the small 12v units , and even cheaper than many of them . The performance compared is simply outstanding. Small compressor -15 to 20 minutes to fill from 1000 to 4300 .6 liter gun tanks.
Yong Heng air pump-3.5 minutes from 1000 to 4300. Same .6 liter gun tanks.
Night and day and so much easier all around with no weak power supply unit or having to do it in front of your vehicle. Stick in the probe throw on the switch and 3.5 minutes later your gun tanks topped off.
I will however say you should probably also be willing to buy a tank and decent regulator and fill the gun from tank. Fill tank with yong heng air pump. However you don’t have to do that, you will just want to after you see how fast the unit moves air. I would recommend that type to anyone thinking on the small compressor unless your are after the 12v for its portability. The yong heng is over 40 lbs , less than 50 though. It has no 12 volt option other than a 2000 watt inverter, those are not cheap. Also the need for cooling water makes it more of a semi permanent set up at your home rather than a good choice if portable is important. Adding the tank gives you a portable option but it’s going to cost about as much as the yong heng did if you buy a tank and reg combo or even more depending on where you look. eBay has good prices on tanks people buy in bulk that have been taken out of service , the normal precautions should be taken going that way as with any used equipment . A 3 Liter tank for 39 dollars plus 20 dollars shipping is an example of what I’ve found to be the cheapest so far. Add a 50-60 dollar regulator and your portable again. Tanks range in size widely, price goes with them. It depends on how you do things . A used tank might not be for you. You will have to fill it , the yong heng being so much faster makes watching that little fill line pressurize more scary as well, at least to me it is. 310 bar is nothing to disrespect , there would be regret if one survived I suppose.
I can’t speak to longevity yet. most reviews over all have lead me to believe if maintained properly the units hold up well over time. You will need to be hands on and learn the air pump so when a seal blows or you need to change the o rings on compressor unit itself you will know how to do it. That goes with all of them if they compress air. If I could go back and start over I would start with the yong heng, the cooling water hassle is well worth the quicker fill time to me personally. People will tell you don’t get the auto stop version. I will tell you the opposite, get the auto stop version , I just monitor the process and make sure it cuts off as it should. So far it’s worked perfectly.
If there is a same cost or less option better than or as good as that Yong Heng I didn’t find it. I hope this helps someone maybe trying to decide or looking to see all the options. Best of luck to everyone and happy shooting!

I'd like to add info on running the Y/H. I bought a Ryobi wet saw water pump at home depot as the one came with the Y/H was not reliable in my case. I used mine to top off a very large C/F bottle (109cu/ft). Never start the compressor under load/pressure, let the filters reach close to bottle pressure before opening the bottle in my case 225bar, I let it run until my bottle reached 4500psi, (310bar)? about 30-40 minutes and keep it cool with ice water. still eventually it will die but for 300bux a great deal!

 

[WorriedMan]

great set up! love the filters your running.

Thanks, first variation didn't include copper (orange) colored water coalescing filter ($125/eBay), but cotton insert in small black Yong Heng inline filter kept getting soaked so had to upgrade. Water coalescing filter is tops for bulk moisture remover, system post filter has been clean and dry since. WM

 

[coastal drifter]

I’m adding this to the thread. Yong Heng failed on the 5th use, it was almost done topping off a 30 min tank , temp had not exceeded 62 ever, it only got that high once, the 2nd time I used it. Plenty of cooling water volume. It was almost to 4300 psi cut off point and i noticed puff of vapor leaking from top line as I went to turn it off to check for leak the pressure being pumped dropped suddenly to 1500 and I shut it down. Let it cool off took top line loose and retightened and restarted , it only made around 400 psi then stopped building presure, no funny noise, runs fine, just won’t make more than 400 psi. It happened day before the last day return window was still open, so it went back where it came from. At least it filled my tank before it decided to fail I guess. I can still hunt at least. That is number two failure with a compressor, as much as I like my air gun this whole making HPA part is aggravating to say the least. I’m not dropping 2k on a high pressure compressor to get dependability. I’m going to go with something recommended by the guy I got my gun from, a tuxing scuba compressor that is set up with 2 separate cylinders one for low pressure and one for high pressure. It is still water cooled and has a dual water/oil separator built in on the side of the unit. based on research I believe the high pressure piston failed in the yong heng which should not have happened based on the use and treatment of the unit. I was very easy on it , it never ran more than 22 minutes , it claimed a duty cycle of 45 minutes. What I’m planning to get is 502 dollars with the bottom part resembling a yong heng , but the cylinders are not stacked like the YH , they are separated , supposed to be more durable and efficient. I guess we will find out , if it doesn’t explode, one review on the thing the guy claims after 5 uses when he went to use it again it exploded , best I could tell anyway, it wasn’t written in English and translator doesn’t always translate accurately. The airgun shop guy says he has used his hard for at least 2 years with zero issues. I wish I was more optimistic. They are going to release 7000 psi compressors sometime soon supposedly , maybe one of those(if affordable) would hold up only pumping up to 4500psi. i also considered a 5800 psi unit but can’t find one that’s really affordable. So 7000 probably won’t be either. If this tuxing scuba thing doesn’t hold up I may run out of options I can afford. Just getting tanks filled somewhere isn’t an option for me due to location , nothing at all close by to get a high pressure air tank filled at all. Hopefully I can figure out the making HPA part of this hobby so I don’t have to basically give it up. I hope everyone else is having much much better luck with HPA.

I have owned 10 high end air guns, not all at the same time, add glass and pellets $$$ you can imagine how much I have invested. In the end I broke down and bought a Alkin (manual shut off) and have been in air heaven since. sometimes you have to bite the big one. I did own a couple Y/H first but after 3 of them... I have a very large C/F bottle so it can stress most lower cost compressors. My advice to others looking at mid range compressors, be ware of re-branded Chinese stuff, you can buy identical compressors for half the price on Alibaba or the other China site. Like reboks when they first came out, a british flag on the box made in Taiwan. Thats when the price of tennis shoes skyrocketed. talk about markup

 

[Ricklin]

Easy and CHEAP high pressure air would be a huge boon to our hobby. So far the Yong Heng and it's clones seem to be the least expensive alternative to gear up for an HPA supply. Heck one manufacturer is introducing disposable N2 bottles to address the issue, simple but costly.
A cheap, simple and reliable high pressure air supply would increase our numbers.

 

[BobsterIT]

When I Started Airgunning I looked at Yong heng Compressors. The impression I got was they were Chinese made and were low quality and HIGH maintenance, so I bit the bullet and bought a Hill EC-3000. As time went on I discovered that the Hill was ONLY for filling guns not tanks. I spent so must $ on it I wasn't going to accept that. I bought a SCBA 66min tank and started filling it. After I finally got it filled to 4350psi I started filling it from 3800psi back to 4350psi once a week. After 3weeks I had issues with the Compressor but I got great help from Hill Support and was able to repair it. Then about ever 3mos I started having issues of one thing or another requiring braking it down and replacing parts. It still is running after 3years but Not sure that the Hill compressor didnt turnout to be the one with HIGH maintenace. I now am looking at the YH again and this time I hear users say it is a very good Compressor for the $ if you take care of it. I see people all over the web using them to fill tanks at lightning speed.

My thought is that maybe I buy a YH and use it to fill my tank and use the Hill to fill guns and as a spare. worest case I blow $400 or so and find it to be a POS I still have my Hill.

 

[Ricklin]

As was posted earlier in the thread, but bears repeating. Use 3-5 gallons of cool water NOT 3-5 quarts of what will very quickly become bath water.
The quantity of water is important. 3 gallons or more and ice is almost unnecessary. The more water there is the lower the running temperature of the pump, heat kills compressor pumps.

 

[Panzerfaust]

Easy and CHEAP high pressure air would be a huge boon to our hobby. So far the Yong Heng and it's clones seem to be the least expensive alternative to gear up for an HPA supply. Heck one manufacturer is introducing disposable N2 bottles to address the issue, simple but costly.
A cheap, simple and reliable high pressure air supply would increase our numbers.

Have you had any experience with those GX compressors? I’ve read all your stuff in the thread and I think you use YH, honestly the bigger this thread gets the more confused I get when I reply to people , a lot of times it seems like I’m sending replies to the wrong person. The GX brand on amazon seem to be fairly durable , one in particular has its own internal cooling tank and you put 500ml of distilled water into it before you start it the first time. It is a more expensive option than the YH. I had decided to try a tuxing scuba compressor with built in water/oil filter , get the same thing for 100 or so less without the built in filters and going that way made the tuxing option just slightly more than a YH, the filter seemed like a good idea and having it integrated onto the compressor also was also appealing. $502.00 before tax. Still have to fix supply of cooling water for tuxing but that part doesn’t matter , it’s not that big of a hassle to me. I’m in a holding pattern on it until I get refunded on the YH. So I ran across the GX it’s a 4 stage compressor rather than 2, I think it may stress electric motor less somehow cause it’s quite a bit quieter when it runs. It is a 350 watt 12 volt dc motor though, the power supply units they give with most compressors do not make nearly enough amps to run those compressors. 12 volt DC motors must be some of the toughest things on the planet though, if you feed them the amps they want and don’t overheat them too many times they seem to go on forever. I have made my own set up to supply required amps already, it was for the first compressor I got with the rifle after that power supply unit failed. So I don’t have to run a vehicle to use the compressor , just a small harbor freight gasoline motor I already had that turns a high amp output ford alternator that’s connected to a 12 volt battery. I’m lucky in that my brother is a fabricator and can set up about anything a person can invision as long as he has a few sketches and a clear understanding of what you need it to do when it’s done. So when the first compressor failed all that became just another science experiment that clutter my garage and shop. That thing worked great though, it made more than enough amps to run that first small compressor. As a bonus it will also charge any other 12 volt battery quickly, but not overcharge it has a voltage regulator as well. The reviews on all the GX compressor are mostly good reviews, it seems if you can avoid amazon shipping you someone else’s returned unit that all their different models hold up fairly well over time if maintained properly. I’m a maintenance fanatic so whatever I end up with will get proper maintenance. So I’m going with either the tuxing scuba compressor or the quiet GX with integrated water cooling. The guy at the airgun shop uses the same Tuxing set up , been going for 2 years so far and works well up to a 6.8 liter CF tank. The GX has almost all good reviews that seem legit when you read them, I read 124 of them word for word. The GX also claims a up to 5 hour continuous run time and can handle up to a 9 liter tank and claims it can do 6.8 liter 0 to 4500psi in 2 hours and 40 minutes. Sorry I wrote you a book and if you made it this far I really appreciate that. I would be interested in any input on either of the mentioned brands Tuxing and GX that you think might be relevant as well. You are 100 percent correct on your point about someone coming up with cheaper HPA solution , it would cause an explosion of new air gunners I believe. It’s one of the things holding many people back from trying air guns. It was mine for a long time actually. Happy shooting!

 

[coastal drifter]

As was posted earlier in the thread, but bears repeating. Use 3-5 gallons of cool water NOT 3-5 quarts of what will very quickly become bath water.
The quantity of water is important. 3 gallons or more and ice is almost unnecessary. The more water there is the lower the running temperature of the pump, heat kills compressor pumps.

Ice was definitely necessary with the 3 Y/H's I owned in a 5gal bucket of water. Might have been the warm south Florida temperatures

 

[coastal drifter]

heres a picture of my filtratoin system... never mine wrong picture

 

[Ricklin]

Yee Hah, that's what all that copper is about, heat transfer. Now listen to a story bout a man named Jed.... Grannies corn sqeezins factory.