Longevity FORCECUT 42i User Manual download pdf (Page 14)

ForceCut 42i 110v/220v PFC 40amp Plasma Cutter

LP-

40D

Cutting Guideline Table

Cutting Methods

Different material thicknesses require different cutting techniques.

 Thin material: Start perpendicular to the work piece. It is unnecessary to angle or start on the

edge, as the arc will pass through quickly.

 Medium material: Angle the torch tip to avoid damaging the tip. Once the arc passes through the

material, you may begin cutting normally.

 Thick material: Drill a pilot hole through which to start your arc, or start on the edge of the work

piece.

Never cut material on a flat surface. Raise the work piece above the surface to avoid blow back which

may burn you or cause fires.

Real Time Arc-Curve Delay

When cutting thick materials you must maintain a steady even motion in the direction of the cut. Moving

the torch too quickly causes an arc-curve delay. An arc-curve delay can leave the work piece with uncut

sections, requiring you to re-cut those sections, which could distort or damage the work piece.

To avoid arc-curve delay, allow the arc to pass completely through the work piece before moving too far

ahead. The arc-curve should lag not more than the thickness of the material being cut. In other words, if

the work piece is one-half inch thick, the arc curve should lag not more than one-half inch behind the

torch, as shown below.

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Longevity FORCECUT 42i User Manual Page 14