Hypertherm HD4070 Rev.1 - Manual (Page 147)

OPERATION
4-22 HyPerformance HD4070 Instruction Manual
Mild steel
O
2
Plasma / O
2
-N
2
Shield
200A Cutting
220398 220356 220355 220354 220353 220352
Pierce height = torch-to-work distance X pierce height factor
Metric
English
O2 N2 O2 N2 O2 N2 O2 N2 in ipm % seconds
5/16 126 170 0.3
3/8 127 140 0.3
7/16 127 127 0.4
1/2 128 115 0.5
9/16 130 97 0.6
5/8 132 80 0.6
3/4 135 65 0.7
7/8 138 55 0.8
1 141 45 1.0
35 12 0 75 90 45 200
0.130
62 20
Torch-to-
Work
distance
Cutting
Speed
Pierce
Height
Factor
Pierce
Delay
Test Preflow Rate (%) Test Cutflow Rate (%)
Material
Thickness
inch
Arc
Voltage
Plasma Shield Plasma Shield
0.160
0.200
O2 N2 O2 N2 O2 N2 O2 N2 mm mm/m % seconds
8 126 4250 0.3
10 127 3450 0.3
12 128 3050 0.5
15 132 2275 0.6
20 135 1575 0.8
25 141 5.0 1175 1.0
12 35
Pierce
Height
Factor
Pierce
Delay
Plasma Shield Plasma Shield
Material
Thickness
millimeters
Arc
Voltage
Torch-to-
Work
distance
Cutting
Speed
4.0
3.3
Test Preflow Rate (%) Test Cutflow Rate (%)
45 90 75 0 20 62 200
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