Mods for the Yong Heng compressor werq well so far.

Well I added the 360mm computer radiator and three 120mm dual ball bearing fans as well as a 4 gallon reservoir to replace the 2.5 gallon original used on my YH compressor. I also upgraded the stock YH 400 l/h pump to a 900 l/h unit.

Before the mod I just added a half gallon jug of ice to the 2.5gallon bucket before I fired it up to top off my 97 cu ft Great White and 90 cu in Ninja tanks. This werqed well for the two plus years I used it this way with temperature staying near my 60C self imposed limit. But I saw others post with fairly complex cooling and drying systems installed and since I already had most of the parts and was bored so installed them.

Tested it originally with the 2.5 gallon reservoir, and new radiator and fan set up, and it just barely managed to stay in the acceptable temperature range of the compressor just filling the Great White. So I got a larger reservoir.

Tested it a couple of days back topped off my Great White, 3400psi to 4100psi, ran upstairs and grabbed my Ninja tank and topped it off, from 2000psi to 4100psi, immediately after. The new system managed to do both tanks and never went over 57 deg C in my 65 deg F basement. So a success it is and I no longer need the ice at all.

Was it worth it? Hard to say as I spent about a $120 on parts and that $120 would buy allot of jugs of ice for sure. ;^)

EDIT;

I recently found the Yong Heng will still go over my self imposed 60 deg F limit in about 20 minutes even with the tricked out radiator and fan mods. So, now its good for around 20 minutes instead of 12 or 13. Such a deal. The ice is still there if I need it but I have no need to run it over twenty minutes so I am good to go.

These things are not designed to run continuously anyway and although one can get them to run longer without overheating they are still just made for intermittent duty. Overheating them will eventually destroy them.

Other posts involved in this.

https://www.airgunnation.com/topic/yet-another-yong-heng-mod/

https://www.airgunnation.com/topic/finally-got-to-test-out-the-yong-heng-mod-i-did/?referrer=1

https://www.airgunnation.com/topic/still-werqing-on-the-yong-heng/?referrer=1

https://www.airgunnation.com/topic/yong-heng-mods-update/?referrer=1






 
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Reactions: bandg
its a pretty neat setup ... a 65* basement is definitely working in your favor, but one of the issues overlooked is its a intermittent duty pump, as implied in the manual ... its not just the top high pressure stage which is important to keep cool but that really all thats monitored with some slight heat sinking of everything else, the motor, manifolds and bottom end continue to rise in temp as well ... i'd limit it for maximum life of things .. maybe 10 minutes, then 10 to cool ... thats where im at with it anyway ..
 
Well I added the 360mm computer radiator and three dual ball bearing fans as well as a 4 gallon reservoir to replace the 2.5 gallon original used on my YH compressor. I also upgraded the stock YH 400 l/h pump to a 900 l/h unit.

Before the mod I just added a half gallon jug of ice to the 2.5gallon bucket before I fired it up to top off my 97 cu ft Great White and 90 cu in Ninja tanks. This werqed well for the two plus years I used it this way with temperature staying near my 60C self imposed limit. But I saw others post with fairly complex cooling and drying systems installed and since I already had most of the parts and was bored I installed them.

Tested it originally with the 2.5 gallon reservoir, and new radiator and fan set up, and it just barely managed to stay in the acceptable temperature range of the compressor just filling the Great White. So I got a larger reservoir.

Tested it a couple of days back topped off my Great White, 3400psi to 4100psi, ran upstairs and grabbed my Ninja tank and topped it off, from 2000psi to 4100psi, immediately after. The new system managed to do both tanks and never went over 57 deg C in my 65 deg F basement. So a success it is and I no longer need the ice at all.

Was it worth it? Hard to say as I spent about a $120 on parts and that $120 would buy allot of jugs of ice for sure. ;^) 

Other posts involved in this.

https://www.airgunnation.com/topic/yet-another-yong-heng-mod/

https://www.airgunnation.com/topic/finally-got-to-test-out-the-yong-heng-mod-i-did/?referrer=1

https://www.airgunnation.com/topic/still-werqing-on-the-yong-heng/?referrer=1










Got to commend you. You've put a lot of effort into the YH setup and provided folks lots of good information all the while. Great stuff. I still use a roughly 2 gallon tool box as a reservoir with a perforated divider in the center, crushed ice added at one end where the stock pump is, return water to the other end. External ducted fan blowing across heads. Over 2 years now and still allows top off of my Great White, usually to at least 4400 if not a bit higher, in about 11 minutes if I start around 3600 and holds upper 50's in a less cool area than your basement. They certainly aren't the most elegant units or the simplest to get into operation but they work.
 
dizzums

I think you are a bit conservative with the ten minutes. The manual states to keep the temps under 75C and not run it more than an hour. I have been running mine for twenty plus minutes now for a couple of years without problems. I also ran it without any oil for a few minutes. Oops! But it still functions fine. I believe you are correct in your thinking that the whole thing is a heat sink though. But with the stock airflow it is not a problem for twenty minutes to an hour depending on the environment. I feel more than that would usually require more airflow over the motor and compressor as a whole and some have done as much and do run them for longer periods without failures.
 
Bandg

Yup Ice is a wonderful thing with these and it can greatly extend their ability to perform their duties safely. I don't need the ice anymore and although the unit does run a little bit warmer it's not enough for me to be concerned. I try to stay under 60C 140F even though the manual says 75C.

Nope, certainly not the most elegant but workhorses they are.
 
This is my set up .... Compact & mobility ... but work great ... 

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