APPENDIX A: ARGON-HYDROGEN CUTTING AND GOUGING
HySpeed HT2000LHF Instruction Manual a-11
6
Shield Arc Approx.
Material
Plasma Gas Flow Rate %
Gas (N
2
) Torch-to-work Initial Torch Voltage Motion
Thickness Preflow Cutflow Pressure Distance Piercing Height Setting Travel Speed Delay Time
(inches) (mm) (H35 %) (H35 %) (psi) (inches) (mm) (inches) (mm) (volts) (ipm) (mm/min.) (sec)
3/16 5 25 25 60 3/16 5 3/8 10 130 170 4300 0.5
1/4 6 (89.9 (89.9 (275 3/16 5 3/8 10 130 155 4000 1.0
3/8 10 SCFH) SCFH) SCFH) 1/4 6 1/2 12 135 120 3000 2.0
1/2 12 1/4 6 1/2 12 140 100 2550 2.0
5/8 15 1/4 6 1/2 12 145 80 2000 2.5
3/4 20 5/16 8 5/8 16 150 60 1500 2.5
7/8 22 5/16 8 5/8 16 155 50 1250 2.5
1 25 5/16 8 155 40 1000
1-1/4 32 ` 5/16 8 165 26 660
1-1/2 38 5/16 8 170 18 460
1-3/4 44 5/16 8 180 12 300
2 50 5/16 8 185 7 180
Aluminum
200 amps • H35 Plasma / N
2
Shield
Argon-Hydrogen Manifold (073109) Required*
This gas combination (Hypertherm recommends a mixture of 35% hydrogen and 65% argon for the plasma gas)
gives maximum thickness cutting capability, excellent cut quality and excellent weldability. Electrode life is
extended when this combination is used.
1 inch = 25.4 mm; 1 scfh = 28.316 liter/hour; 1 psi = .0689 bar = 6.895 KPa
Notes: Set plasma gas inlet pressure to 120 psi (8.3 bar)
Set shield gas inlet pressure to 90 psi (6.2 bar)
Production cutting above 7/8" (22 mm) not recommended
Above Water Only
020602
Shield
120837
Retaining cap
020608
Nozzle
020607
Swirl ring
020415
Electrode
WARNING
Do not use water muffler
when cutting with argon-hydrogen
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