Yong Heng Fill Times for longevity. How long to fill your larger tanks?

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deadhorse

deadhorse

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Mar 15, 2021
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UT, United States
I am curious to hear other users of Yong Hengs describe their fill times, I guess if they have ever even timed them before or are willing to do it now that is.

I am interested in bottle size you fill and what starting and stopping pressure, and how many breaks and how long of break did you give your Yong Heng to rest?

I have been filling a little hatsan 1.6l bottle which is about 14cu ft. or directly into the gun and I have not had to stop the compressor once and it has stayed cool around 40c-48c i want to say is the avg. But I have a 86cu ft bottle do to arrive in a couple days, what sort of fill times am I looking at and how long are you letting it rest. Are you letting it rest after just a given amount of time or just when the temp gauge starts to climb? I plan on only filling to 4200 or 4300psi. most likely from a 86cuft bottle at 2,000psi
 
Environment is everything when filling larger tanks. I run mine in a 65-70deg F basement.

I have seldom found the need to run mine over 20 minutes but when I do I watch the temperature gauge to see when it needs to be shutdown. I don't take it much over 60C these days although in the past I had it so hot the gauge quit werqing and the compressor was smoking. Cuz I forgot to turn the water pump on a few times. It did survive and kept on running until I retired it, at near 30 hours, as it had the old style piston which had a habit of cracking. I have a new piston for it now but Yong Heng #2 has taken over for now.

When I filled my 88cf tank I ran it for 15-20 minutes or until it got near 60C then shut it down and let the coolant, with a half gallon jug of ice in it, run through it for twenty minutes to half an hour or so before I started it again. 

In retrospect I could have just had one of my house fans on it to keep it cool and filled for longer or cooled it off faster.

Let your temp gauge be your limiting factor for the most part but I would not run it over half an hour unless you are in a cold climate where the whole compressor will stay cool. The temp gauge only gives you the head temp and other stuff can overheat too.

https://www.airgunnation.com/topic/mods-for-the-yong-heng-compressor-werq-well-so-far/?referrer=1
 
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Fill times depend on bottle size and starting/ending pressure. Filling a 1.6l bottle without stopping is not surprising at all, same with filling directly into the gun. If the bottle you receive is empty, I'd probably fill to 2000 psi and give it a break. It'll take a while to get there, and I think a bit of a break every 20 mins isn't a bad idea. As others have said, the temp is the main limiting factor. Don't exceed 60 C. I have a relatively small water bucket (2 gal) so I have to sling ice directly into the water. 5g water would give me more cushion for sure.

So anyway, I went from 0-2000 psi, took a break. 2000-3000 psi, took a break. Final fill was 3000-4100 psi. In the future I will be able to fill in one shot as I'll be starting at 3000 psi or close to it. I'm using 30min SCBA tanks, so 45 cuft. 86 cuft gonna take longer for sure. If you are filling in a cool area, you might be able to do it in one shot. Your main problem will likely be motor temp as you can always add ice to control the temp of the compressor head.
 
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45 minute Scba tank from about 3200 psi to 4200 psi take around or just under 10 minutes. Usually that’s one run with fan pointed at it, I don’t recirculate water nor add ice, just fresh water from hose in 5 gallon bucket then heated water goes into another bucket I empty out. Take about 10 gallons of water, in the winter it’s slightly better because water is much colder but still one 10 minute run give or take a minute. 




 
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I RARELY run my tanks below 2800-2900psi so refilling (topping off) to 4200 only takes about 10-15 minutes of run time. I never try filling to the full 4500psi the tanks are capable of & really try to "baby" my YH in the interest of longevity. I, too, keep a fan blowing on the YH & put ice in my water bucket as heat is the enemy! 
 
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Fill times depend on bottle size and starting/ending pressure. Filling a 1.6l bottle without stopping is not surprising at all, same with filling directly into the gun. If the bottle you receive is empty, I'd probably fill to 2000 psi and give it a break. It'll take a while to get there, and I think a bit of a break every 20 mins isn't a bad idea. As others have said, the temp is the main limiting factor. Don't exceed 60 C. I have a relatively small water bucket (2 gal) so I have to sling ice directly into the water. 5g water would give me more cushion for sure.

So anyway, I went from 0-2000 psi, took a break. 2000-3000 psi, took a break. Final fill was 3000-4100 psi. In the future I will be able to fill in one shot as I'll be starting at 3000 psi or close to it. I'm using 30min SCBA tanks, so 45 cuft. 86 cuft gonna take longer for sure. If you are filling in a cool area, you might be able to do it in one shot. Your main problem will likely be motor temp as you can always add ice to control the temp of the compressor head.
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Thank you this sounds like good advice
 
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I RARELY run my tanks below 2800-2900psi so refilling (topping off) to 4200 only takes about 10-15 minutes of run time. I never try filling to the full 4500psi the tanks are capable of & really try to "baby" my YH in the interest of longevity. I, too, keep a fan blowing on the YH & put ice in my water bucket as heat is the enemy!
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Great advice, thank you Gerry. I want longevity and for it to just keep working well also. The 9liter and 1.6l bottle should last me a couple weeks i am guessing so I don't think this compressor will get ran near as much once my larger bottle comes, I think the start stop start stop on multiple small fills directly into the gun might be worse then filling a large bottle once very couple weeks, but maybe ill just shoot more lol. How long did you go before your first oil change? I don't even think I've hit 30 minutes run time yet. It has just seem to fill so fast even the 1.6l bottle seems like it takes 2-3 minutes maybe. That makes sense to me also that the last 200-300 psi would probably be the most time consuming and have the compressor working at its absolute hardest, I have been doing the 1.6 liter to 4300psi, I think i will do the 9l to 4200psi
 
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Great information all of you, thank you very much, you helped me decide on a system for filling my large tank.

And as a added bonus you all talked me into putting a fan on it also. The compressor and water pump takes up my outlet, I dont know about doing a splitter and taking up even more power on that plug. But I did find this a rechargeable lithium ion 2600ma fan https://amzn.to/3A32aos it looks like i could clamp it right on the handle and it has about a 6" fan diameter and could blow air over that entire head sitting right next to it. Says 2.5hrs run time and I can just charge it here and there as needed.
 
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i run for 10 then let it sit with the fan on it for 20 or so .. even with a 45min tank it usually only takes 2 or 3 runs to top it .. no reason to torture it, imo thats why people fry them and blow disks etc - everything heats up .. not just the top end ... also important that the electric feed circuit be a good one .. a cheezy line way out somewhere may not be adequate, or even worse running it on an extension .. and thats bad for everything ...
 
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Great information all of you, thank you very much, you helped me decide on a system for filling my large tank.

And as a added bonus you all talked me into putting a fan on it also. The compressor and water pump takes up my outlet, I dont know about doing a splitter and taking up even more power on that plug. But I did find this a rechargeable lithium ion 2600ma fan https://amzn.to/3A32aos it looks like i could clamp it right on the handle and it has about a 6" fan diameter and could blow air over that entire head sitting right next to it. Says 2.5hrs run time and I can just charge it here and there as needed.
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That fan is likely not going to blow much air or for the time that is stated with only a single 18650 battery. The Chinese often have a habit of inflating specs to suit their needs. But you have a good idea there.
 
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If you have a fan blowing on the cylinder of a yong heng compressor it is competing with the compressor's built in fan which exhausts air over the cylinder.
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This may be correct but the "built in fan" moves very little air IMO and is more directed at motor cooling. The two I've looked at haven't even been helical blades, they are simple square bladed squirrel cage setups. I've observed the operating temperature drop when I added ice to the water and then observed it drop more when I turned on the external fan. I bet that removing the stock fan and replacing with an appropriately sized helical fan blade would move a lot more air. But mine runs at 48-52 degrees even in summer heat with ice and with an external fan.
 
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If you have a fan blowing on the cylinder of a yong heng compressor it is competing with the compressor's built in fan which exhausts air over the cylinder.
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Maybe i misspoke, I mean I will attach the fan to the handle of the machine and have it blowing at the top portion of the pump where all the air lines are and all that, so just that upper part that i dont think the yong heng fan really gets to that part because its down in the box. I am guessing it doesn't need much air but just circulation of air to help bleed off heat. I will try the chargeable fan and see if it works and keep an eye on temp. 
 
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Try adding one small drop of dish soap to your water bucket and leave the ice out. This acts as a surfactant or wetting agent to give the water better contact with the aluminum. Too much cooling causes faster wear on the cylinder and rings. You can also wrap some type of wick material like cotton cloth or paper towels around the stainless steel hard lines and keep them wet to reduce temperature. Twist a piece of wire around the ends to keep them in place.
 
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Click to expand...

This may be correct but the "built in fan" moves very little air IMO and is more directed at motor cooling. The two I've looked at haven't even been helical blades, they are simple square bladed squirrel cage setups. I've observed the operating temperature drop when I added ice to the water and then observed it drop more when I turned on the external fan. I bet that removing the stock fan and replacing with an appropriately sized helical fan blade would move a lot more air. But mine runs at 48-52 degrees even in summer heat with ice and with an external fan.
Click to expand...

These make great cooling fans for projects https://www.amazon.com/AC-Infinity-Cooling-Ventilation-Projects/dp/B009OWRMZ6/

They move a lot of air without much noise.
 
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