Plasma Cutter Keeps Cutting Out

Make sure at the least you are running a small disposable in line water separator or upgrade to a desiccant system on your compressor.

Plasma cutter keeps cutting out.

Excess gas pressure is a common cause of hard starting a situation in which the torch fails to initiate an arc when all other conditions for normal operation are correct. Constant gas pressure is important to maintaining the cutting arc. The most common problem the plasma cutter is too small for the metal thickness this is the most common issue we have seen to date. This can sometimes prevent a transfer which will cause the pilot arc to cut out after 4 or 5 seconds.

When it comes to cnc plasma cutting the same basic questions regarding cut quality always seem to surface. It can cause the arc to be erratic and unstable and may seem like the plasma cutter isn t working correctly. Plasma arc instability may lead to uneven incision built up edge accumulation etc. This slag or metal dust can cause the electrical current to discharge and not make a good connection.

With a little troubleshooting you can almost always find a resolution to your cut quality problems by selecting the right plasma torch consumables adjusting your power levels amperage and tweaking cut speeds and cut heights. The number one cause of the arc cutting out is having the retaining cup over tight. When this happens you should stop cutting and wipe off the end of the tip to clean it of any dust or slag. The internal plasma cutter s separator should be checked or drained periodically.

For those who are still having similar is. Clogged cutting tip as the plasma cutter is working there is a tendency to collect dirt particles and metal slag. The arc stability of nc plasma cutting machine directly affects the cutting quality. Too much gas pressure will also cause rapid deterioration of electrodes.