Hypertherm MAX200 Machine Torch Plasma Arc Cutting System User Manual download pdf (Page 73)

4-8 MAX200 Instruction Manual

OPERATION

Cutting

• Start cutting from the edge of the workpiece, unless you must pierce. For tips on piercing, refer to the

Piercing section.

• When cutting, make sure that the sparks are coming out of the bottom of the workpiece. If not, check for the

following:

– If the sparks are spraying on top of the workpiece, the torch may be moving too fast. Check the Cut

Charts for the correct travel speeds. The optimum travel speed is generally just slightly under the speed

that causes the arc to “rooster tail” off of the workpiece.

– If there is not sufficient power to fully penetrate the workpiece, reduce the travel speed. If this does not

work, stop cutting and re-check the cutting chart specifications.

Piercing

Note: The MAX200 can pierce metals up to a thickness of one (1) inch.

• Set the torch-to-work distance (standoff) so that the shield cap is 1/8 inch or more away from the workpiece.

(Refer to the Adjust the Torch Position procedure, page 3-40.)

• Ensure the MACHINE DELAY on the power supply is set to the recommended motion time delay (refer to

cutting charts) in order for the metal to be pierced completely before the travel motion begins.

• Position the torch directly over the workpiece juncture/cut line to be pierced.

• The workpiece can now be pierced.

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Hypertherm MAX200 Machine Torch Plasma Arc Cutting System User Manual Page 73