Mine did this after about 4 to 6" of cutting. So frustrating! After several minutes of waiting it would arc and then almost immediately stop cutting. I changed consumables and nothing at all. It was brand new! I had wanted to convert it to pilot arc so I thought I would try that. I ran a jumper wire with alligator clips from the earth ground clamp to the cutting tip. And it was pilot arc. Then I cut some scrap sheet metal and it worked fine. Then out of curiosity I removed the jumper wire, just to verify if I converted it to pilot arc it would solve my issue. And unbelievably it worked and has worked perfectly ever since. I can't explain that at all but it's fine now. I even cut a 1/2" thick 6" plate with it tonight was well as several other cuts through 3/16" angle iron. The best part is that I contacted the company that I bought it from to inform them of the issue so as to help future customers if needed. They apologized and refunded all of my money and told me to keep the machine. I'm so happy with it now even without the pilot arc that I probably won't convert it at all. What more could I ask it to do? But it's worth a shot if yours won't arc or you have similar issues. Hopefully this will help someone.
Anyone struggling with this should check the spark gap inside The gape has to be small enough to initiate a spark but don't short it. You can find two copper stands with screws on top and small carbon rods in them , that's your gap , loosen one screw and push the rod to be closer to the other one but not touching then tighten it and test , if you see a spark then your circuit is good, if the torch don't ignite make the gape slightly larger ... Until you have ut right. Always discharge those stands before touching them with a wire going to ground before touching them
The circuit responsible for ignition is the one on the front right when facing the machine, It has a relay that you should hear it click When you push the button or release it immediately ( don't be confused by the solenoid click sound it has a delay when you release the button) If you don't hear the relay then the circuit maybe bad Also on that board besides the connecter on the side there's an empty connecter which should be shorted ( with solder from factory, they may forget that so check it)
This seems to be a common problem for many plasma arc machines. I have a MT160, no schematics to be found. I seen another video that showed the internal arc between the points that you described. Mine worked fine for the last job done, then it set for months without use, then when I needed it , I also have no torch arc. I have looked inside, and it is very clean. I was looking for a fuse, but there is none. I will need to look for this internal arc that you described. Thank you for the input comment!.
With the machine facing you and the cover off, the right hand side has a vertical mounted circuit board with 2 contact points. When you press the trigger do you notice a blue spark between these contacts? If there's no visible spark try opening or closing them, the gap should be roughly 2mm. Make sure the machine is OFF and UNPLUGGED and short the gap first with an insulated screwdriver, then adjust points and try again.
I bought a Chinese HF cut 50 by Susemse on Ebay and got around to assembling it today, to try out after 2 months, but find it never sparks or does anything except blow air out of the tip! You would have thought the manufacturer would have tested it before selling it, wouldn't you? It looks like they are just having a laugh at our expense! By the way, thanks for great video and showing us how to fix the frickin problem, Patrick!!!!
@@patricklaine9469 So, after wasting a lot of time checking the air supply over and over again, you worked out you needed a new circuit/spark board board. Then, like a miracle, you just happened to have the right circuit board for a Cut50 to get it working. Amazing! By the way, I didn't waste time messing around guessing the problem and just sent it back and got the refund.
those cut 50s dont have auto ignition unless stated on unit and are 220v and wontt work on 110v. only ignites when it touches the clamped + but also a chance the ground cable inside the hose can disconnected. or electrical
Mine works for a little while then does this... I'm going to try what the guy below me said with the contactor. But just wanted to say... tightening the consumable a little with some pliers might help and also try to make sure there is no moisture in your air pump.
![อยู่ได้แล้ว - LIPTA feat. Mirrr [OFFICIAL MV]](http://i.ytimg.com/vi/-9-hpntNym4/mqdefault.jpg)
Mine did this after about 4 to 6" of cutting. So frustrating! After several minutes of waiting it would arc and then almost immediately stop cutting.
I changed consumables and nothing at all. It was brand new! I had wanted to convert it to pilot arc so I thought I would try that. I ran a jumper wire with alligator clips from the earth ground clamp to the cutting tip. And it was pilot arc. Then I cut some scrap sheet metal and it worked fine.
Then out of curiosity I removed the jumper wire, just to verify if I converted it to pilot arc it would solve my issue. And unbelievably it worked and has worked perfectly ever since. I can't explain that at all but it's fine now. I even cut a 1/2" thick 6" plate with it tonight was well as several other cuts through 3/16" angle iron.
The best part is that I contacted the company that I bought it from to inform them of the issue so as to help future customers if needed. They apologized and refunded all of my money and told me to keep the machine.
I'm so happy with it now even without the pilot arc that I probably won't convert it at all.
What more could I ask it to do? But it's worth a shot if yours won't arc or you have similar issues. Hopefully this will help someone.
Anyone struggling with this should check the spark gap inside
The gape has to be small enough to initiate a spark but don't short it.
You can find two copper stands with screws on top and small carbon rods in them , that's your gap , loosen one screw and push the rod to be closer to the other one but not touching then tighten it and test , if you see a spark then your circuit is good, if the torch don't ignite make the gape slightly larger ... Until you have ut right.
Always discharge those stands before touching them with a wire going to ground before touching them
The circuit responsible for ignition is the one on the front right when facing the machine,
It has a relay that you should hear it click When you push the button or release it immediately ( don't be confused by the solenoid click sound it has a delay when you release the button)
If you don't hear the relay then the circuit maybe bad
Also on that board besides the connecter on the side there's an empty connecter which should be shorted ( with solder from factory, they may forget that so check it)
This seems to be a common problem for many plasma arc machines. I have a MT160, no schematics to be found. I seen another video that showed the internal arc between the points that you described. Mine worked fine for the last job done, then it set for months without use, then when I needed it , I also have no torch arc. I have looked inside, and it is very clean. I was looking for a fuse, but there is none. I will need to look for this internal arc that you described. Thank you for the input comment!.
With the machine facing you and the cover off, the right hand side has a vertical mounted circuit board with 2 contact points. When you press the trigger do you notice a blue spark between these contacts? If there's no visible spark try opening or closing them, the gap should be roughly 2mm. Make sure the machine is OFF and UNPLUGGED and short the gap first with an insulated screwdriver, then adjust points and try again.
It's working again! I changed the circuit/spark board.
Where did you get the board at?
@@patricklaine9469 please information about where do you get the board
@@RICH20002007 seller sent it to me
mine is doing something very similar, no high frequency
I bought a Chinese HF cut 50 by Susemse on Ebay and got around to assembling it today, to try out after 2 months, but find it never sparks or does anything except blow air out of the tip! You would have thought the manufacturer would have tested it before selling it, wouldn't you? It looks like they are just having a laugh at our expense! By the way, thanks for great video and showing us how to fix the frickin problem, Patrick!!!!
It's working again! I changed the circuit/spark board.
@@patricklaine9469 So, after wasting a lot of time checking the air supply over and over again, you worked out you needed a new circuit/spark board board. Then, like a miracle, you just happened to have the right circuit board for a Cut50 to get it working. Amazing! By the way, I didn't waste time messing around guessing the problem and just sent it back and got the refund.
where is that circuit?😢@@patricklaine9469
same problum in my machine
👍👍👍👍👍👍👍👍👍👍👍👍👍👍
those cut 50s dont have auto ignition unless stated on unit and are 220v and wontt work on 110v. only ignites when it touches the clamped + but also a chance the ground cable inside the hose can disconnected. or electrical
In both cases you mentioned there should be a spark inside the unit on the circuit board.
Please soulution
How do you solved your problem .. please advise ...
Never solved
It's working again! I changed the circuit/spark board.
Mine works for a little while then does this... I'm going to try what the guy below me said with the contactor.
But just wanted to say... tightening the consumable a little with some pliers might help and also try to make sure there is no moisture in your air pump.
What is wrong with you we can that the air is working
It's working again! I changed the circuit/spark board.
@patricklaine9469 where did you get circuit board?
@@mbucklesnak seller sent it to me