Hypertherm HT4400 HySpeed Plasma Arc Cutting System - Manual (Page 183)

e-2 HT4400 Instruction Manual
3
Mild Steel
O
2
Plasma / O
2
-N
2
Shield
400 Amps
Straight and Bevel Cutting to 45°
Note: Cut charts display straight cutting (90°) parameters
Air
Flow Rates @ 140 psi / 9.6 bar
(scfh / slh)
N
2
O
2
Preflow 192.4 / 5448 61.2 / 1733
Cutflow 152.5/ 4318 125.8 / 3562
120786
Retaining Cap
120934
Nozzle
120939
Swirl Ring
120810
Electrode
* Piercing not recommended
** Cuts on these thicknesses may result in increased cut angle variation and surface roughness. Reduce cut speed by
5%-10% for improvement with some materials.
Minimum inlet pressures remain at one setting of 140 psi (9.6 bar) for all material thicknesses.
Approximate pressures while cutting in RUN mode:
PG1 74
PG2 43
MV1 MV2 MV3 MV4 MV5 MV6 MV7 PG1 PG2 PG1 PG2 Inches Volts in. mm ipm mm/m in. mm seconds
3/8** 135 .125 3 195 4950 .250 6 0.4
1/2** 138 .157 4 160 4060 .314 8 0.5
5/8 140 .157 4 120 3050 .314 8 0.6
3/4 142 .157 4 95 2413 .314 8 0.7
7/8 145 .188 5 80 2032 .375 10 0.8
1 145 .188 5 70 1778 .375 10 1
1-1/8 145 .188 5 60 1520 .375 10 1.4
1-1/4 148 .188 5 55 1400 .375 10 1.9
1-1/2 150 .188 5 40 1020 * * *
2 175 .250 6 15 381 * * *
Cutting
Speed
Torch-to-Work
Distance
Initial Pierce
Height
Pierce
Delay
Time
68 4 6 8 25 34 40 33 48 64 43
Arc
Voltage
English
Test
Preflow
Verify (psi)
Test
Cutflow
Verify (psi)
Material
Thickness
Test Preflow and Cutflow Adjust (psi)
Plasma Shield Plasma Shield
MV1 MV2 MV3 MV4 MV5 MV6 MV7 PG1 PG2 PG1 PG2 mm Volts mm in. mm/m ipm mm in. seconds
10** 135 3 .125 4718 186 6 .250 0.4
12** 138 4 .157 4301 169 8 .314 0.5
15 140 4 .157 3320 131 8 .314 0.6
20 142 4 .157 2298 91 8 .314 0.7
22 145 5 .188 2053 81 10 .375 0.8
25 145 5 .188 1806 71 10 .375 1
30 145 5 .188 1468 58 10 .375 1.2
32 148 5 .188 1386 55 10 .375 1.4
35 150 5 .188 1204 47 10 .375 1.9
40 155 5 .188 929 37 * * *
50 175 6 .250 421 17 * * *
33 48 64 43 25 34 40 68 4 6 8
Initial Pierce
Height
Pierce
Delay
Time
Plasma Shield Plasma Shield
Test Preflow and Cutflow Adjust (psi)
Test
Preflow
Verify (psi)
Test
Cutflow
Verify (psi)
Material
Thickness
Arc
Voltage
Torch-to-Work
Distance
Cutting
Speed
Metric