The cut quality is unsatisfactory, or the cut does not sever the workpiece

Unsatisfactory cut quality can have many causes. These can be related to the cartridge, the work lead connection, the gas supply, or an incorrect output current, cut speed, operating mode, or extension cord.

There is a problem with the Hypertherm cartridge

  • The Hypertherm® cartridge is not installed correctly.
  • The Hypertherm cartridge is at end-of-life.
  1. Make sure that the Hypertherm cartridge is not too loose or too tight.
  2. Examine the Hypertherm cartridge for wear or damage.
  3. Replace it if it is worn or has damage.

    A higher rate of Torch Stuck Open (TSO) and Torch Stuck Closed (TSC) faults is typical as a Hypertherm cartridge gets near end-of-life.

The work lead connection is not satisfactory

  1. If possible, move the work clamp closer to the area of the workpiece you are cutting.
  2. Clean the area where the work clamp comes into contact with the workpiece or cutting table, and remove rust, paint, or other residue.
  3. Make sure that the cutting table is correctly grounded and has good contact with the workpiece.
  4. Examine the work lead for a loose connection at the plasma power supply and at the work clamp.
  5. Examine the work clamp, and repair or replace the clamp if necessary.
  6. Examine the work lead, and repair or replace the lead if necessary.

The output current (A) is set too low

Increase the output current (A) as necessary.

The cut speed is too fast

Decrease the cut speed as necessary.

The operating mode is incorrect

Use the correct operating mode for the cutting application. Use a Hypertherm gouging cartridge in Gouge mode. Use a Hypertherm cutting cartridge in Cut mode.

There is a gas supply problem

  1. For optimum system performance, make sure that the inlet gas pressure stays between 7.6 bar – 8.3 bar (110 psi – 120 psi) while gas is flowing.

    Never use more than the maximum gas pressure of 9.3 bar (135 psi).

  2. Examine the inlet gas supply hose for signs of leaks or blockages.
  3. Examine the gas filtration system for signs of contaminants that are possibly causing interference with system performance.

There is a problem with the torch lead

  1. Make sure that the torch lead is straight and is not twisted.
  2. Replace the torch lead if it has damage.

An extension cord is not sufficient

Operate the plasma power supply without using an extension cord. If you must use an extension cord, use a heavy conductor cord of the shortest possible length.