cutmaster 39
Manual 0-4976
4T-7
OPERATION
4T.08 Recommended Cutting Speeds
Cutting speeds vary according to torch output, the type of material being cut, and operator skill. Speeds shown
are typical for this cutting system using air plasma to cut mild steel, with output current at 30 amps and torch
held at 0 - 1/16" (0 - 1.6 mm) standoff.
5
9.5
0.375
0.2
0.1
6
18
Inches/ Meters per Minute
CUTTING SPEED
Gage
MM
MA
TERIAL
THICKNESS
0.25
0.3
0.15
0.35
0.05
20
12
8
6
7
2
4
1
3
Inch
Inches
Meters
20
0.5
40
1.00
60
1.5
80
2.0
100
2.5
120
3.05
140
3.5
160
4.06
180
4.57
200
5.08
220
5.56
240
6.1
400
10.1
Typical Cutting Speeds
Air Plasma on Mild Steel
24
10
0.25
0.5
12.7
0.4
A-03381
Output current setting or cutting speeds may be reduced to allow slower cutting when following a line, using
a template or cutting guide while still producing cuts of excellent quality.
4T.09 Gouging
!
WARNINGS
Be sure the operator is equipped with proper gloves, clothing, eye and ear protection and that all safety precautions
at the front of this manual have been followed. Make sure no part of the operator’s body comes in contact with the
workpiece when the torch is activated.
Disconnect primary power to the system before disassembling the torch, leads, or power supply.
CAUTIONS
Sparks from plasma gouging can cause damage to coated, painted or other surfaces such as glass, plastic, and
metal.
Check torch parts. The torch parts must correspond with the type of operation. Refer to Section 6 and the Appendix
Pages for additional information on torch parts.
Gouging Parameters
Gouging performance depends on parameters such as torch travel speed, current level, lead angle (the angle
between the torch and workpiece), and the distance between the torch tip and workpiece (standoff).
Torch Travel Speed
NOTE
Refer to Appendix Pages for additional information as related to the Power Supply used.
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