Tuxing compressor

Anyone have experience with this/ these compressors?

I have an M042 and it is pushing 2 years old. I don't run any of these *special* oils, just what is recommended by Tuxing, synthetic of some type.

Fills 6.8L in ~45 minutes
Fills 9.0L in ~75 minutes

Runs fairly cool, gets up to 130F or a bit higher when filling a 9L. But I usually dump some ice in the cooling water before I start.

Only issue I've had is the cheap water pump died. I replaced it with a higher flow pump. Needed a reducer from the pump 1/2 outlet to the compressor 1/4 inlet.
 
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I bought one about 3 years ago, it worked well for 6 months then I stopped using it until now. Unfortunately is not pumping air anymore so I ventured into changing all the O Rings, seals, check valves, etc. I followed the YouTube Tuxing videos in great detail but it only pumps very little air and will not go above 50bar…. I guess I am doing something wrong, but I cannot figure it out…. :-(
 
So i picked one of these up. I believe it was the m42 whatever. Packaging looked great, opened her up, hooked up water pump and lines from a bucket. Tried to fill a 2.5lt tank and before it even hit 3000psi it tripped the breaker on the machine. Checked the temps and it was around 80ish 90. Wierd. So reset the breaker and tried again. Only ran for a short time before it tripped the breaker again. It takes a long time to fill a tank. I forgot what the timer said but less than 30 mins of run time. And really struggles after 2700-3000. Not sure whats going on with it. Dead heading the unit just to see if it will reach the 4500psi mark and ut gets there no issues. A bottle on the riffle it does ok. Still slower than my yongheng. Anyone know of what it could be?
 
Yes oil in crankcase. Royal purple
Should be using a good reciprocating oil, the brand isn't important.

20250309_093536 (2).jpg
 
So i picked one of these up. I believe it was the m42 whatever. Packaging looked great, opened her up, hooked up water pump and lines from a bucket. Tried to fill a 2.5lt tank and before it even hit 3000psi it tripped the breaker on the machine. Checked the temps and it was around 80ish 90. Wierd. So reset the breaker and tried again. Only ran for a short time before it tripped the breaker again. It takes a long time to fill a tank. I forgot what the timer said but less than 30 mins of run time. And really struggles after 2700-3000. Not sure whats going on with it. Dead heading the unit just to see if it will reach the 4500psi mark and ut gets there no issues. A bottle on the riffle it does ok. Still slower than my yongheng. Anyone know of what it could be?
TUXING twin 4500 air compressors typically require a break-in period to ensure optimal performance and longevity. Here's a general procedure based on available information:

  1. Oil Check: Before starting, ensure the compressor is filled with the recommended synthetic motor oil (e.g., 5W40). The oil level should align with the sight glass indicator.
  2. Thread Tightening: Inspect all threaded components and tighten them securely to prevent leaks.
  3. Initial Run: Operate the compressor without any load for a short duration (e.g., 10–15 minutes). This allows the internal components to settle and lubricate properly.
  4. Cooling System: Verify the water pump and cooling system are functioning efficiently. Address any issues, such as kinked hoses, to ensure proper flow.
  5. Gradual Use: After the initial break-in, gradually increase usage while monitoring temperature and pressure levels. Avoid prolonged continuous operation to prevent overheating.

Just wondering if you followed the break in. and i would switch the oil to a RECIPROCATING oil and keep temp below 120-125 at most

20250309_093437 (1).jpg
 
TUXING twin 4500 air compressors typically require a break-in period to ensure optimal performance and longevity. Here's a general procedure based on available information:

  1. Oil Check: Before starting, ensure the compressor is filled with the recommended synthetic motor oil (e.g., 5W40). The oil level should align with the sight glass indicator.
  2. Thread Tightening: Inspect all threaded components and tighten them securely to prevent leaks.
  3. Initial Run: Operate the compressor without any load for a short duration (e.g., 10–15 minutes). This allows the internal components to settle and lubricate properly.
  4. Cooling System: Verify the water pump and cooling system are functioning efficiently. Address any issues, such as kinked hoses, to ensure proper flow.
  5. Gradual Use: After the initial break-in, gradually increase usage while monitoring temperature and pressure levels. Avoid prolonged continuous operation to prevent overheating.

Just wondering if you followed the break in. and i would switch the oil to a RECIPROCATING oil and keep temp below 120-125 at most

View attachment 556758
I have 6 gel ice bags (Nordic ice, came with a meat delivery). I throw 3 in my 5 gallon tank when I'm doing longer runs, like filling my 9L from 2000psi to 4500psi. Temp rarely gets above 50c/122f. Starts getting there and I just change the ice bags. Filling a 9l from empty is about 75 minute run. I drop ice cubes in the water before I start.

I've been using the synthetic oil type recommended by Tuxing for close to 2 years. I use my compressor a lot because I am constantly fiddling with one of my many guns or building up some plenum or tank idea. Other than the cheap water pump failing I've had no real issues. The water pump failing was a good thing. The high flow 1/2 inch pump really keeps the temp down. Inlets to the compressor are 1/4 and I needed a reducer. Even with the reducer there is significantly more water flow.
 
I freeze a gallon of water in a milk jug, and put it back in freezer when done filling. When a pump is loosing high pressure there are usually 1 or 2 of 4 things. (1)Check valve o-ring , or dirty check on top of hi pressure head. (2) hi pressure piston rings are spent (3) reed valve on low pressure side might get cracked after overheating. (4) (from overheat) warped hi pressure head that new piston rings only last a few uses about $55 for a new hi pressure head. Most parts that wear are inexpensive, and easy to replace.
 
I have 6 gel ice bags (Nordic ice, came with a meat delivery). I throw 3 in my 5 gallon tank when I'm doing longer runs, like filling my 9L from 2000psi to 4500psi. Temp rarely gets above 50c/122f. Starts getting there and I just change the ice bags. Filling a 9l from empty is about 75 minute run. I drop ice cubes in the water before I start.

I've been using the synthetic oil type recommended by Tuxing for close to 2 years. I use my compressor a lot because I am constantly fiddling with one of my many guns or building up some plenum or tank idea. Other than the cheap water pump failing I've had no real issues. The water pump failing was a good thing. The high flow 1/2 inch pump really keeps the temp down. Inlets to the compressor are 1/4 and I needed a reducer. Even with the reducer there is significantly more water flow.
Sounds like you're keeping the heads nice and cool but what's equally important is the temp of the oil to prevent thermal break down. Also just using water in the system creates rust over time. I have had my oldest one going on 4 years and still going strong.