ESAB CUTMASTER 120
Manual 0-5380 OPERATION
4T-7
Slag Buildup
Slag generated by gouging on materials such as carbon and stainless steels, nickels, and alloyed steels, can
be removed easily in most cases. Slag does not obstruct the gouging process if it accumulates to the side
of the gouge path. However, slag build - up can cause inconsistencies and irregular metal removal if large
amounts of material build up in front of the arc. The build - up is most often a result of improper travel speed,
lead angle, or standoff height.
4T.06 Mechanized Torch Operation
Cutting With Mechanized Torch
The mechanized torch can be activated by remote control pendant or by a remote interface device such as CNC.
1. To start a cut at the plate edge, position the center of the torch along the edge of the plate.
Travel Speed
Proper travel speed is indicated by the trail of the arc which is seen below the plate. The arc can be one of
the following:
1. Straight Arc
A straight arc is perpendicular to the workpiece surface. This arc is generally recommended for the best
cut using air plasma on stainless or aluminum.
2. Leading Arc
The leading arc is directed in the same direction as torch travel. A five degree leading arc is generally rec-
ommended for air plasma on mild steel.
3. Trailing Arc
The trailing arc is directed in the opposite direction as torch travel.
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