Hypertherm HT200LHF-200 Volt HySpeed - Manual (Page 66)

OPERATION
HT2000LHF
Instruction Manual
4-13
6
Shield Arc Approx.
Material Plasma Gas Flow Rate % Gas (Air) Torch-to-work Initial Torch Voltage Motion
Thickness Preflow Cutflow Pressure Distance Piercing Height Setting Travel Speed Delay Time
(inches) (mm) (O
2
% N
2
%) (O
2
% N
2
%) (psi) (inches) (mm) (inches) (mm) (volts) (ipm) (mm/min.) (sec)
Shield Arc Approx.
Material Plasma Gas Flow Rate % Gas (Air) Torch-to-work Initial Torch Voltage Motion
Thickness Preflow Cutflow Pressure Distance Piercing Height Setting Travel Speed Delay Time
(inches) (mm) (O
2
% N
2
%) (O
2
% N
2
%) (psi) (inches) (mm) (inches) (mm) (volts) (ipm) (mm/min.) (sec)
1/4 6
5 45 64 0 60
1/8 3 1/4 6 120 160 4060 0.5
.315 8 (5.3 / 62.4 (79.6 / 0 (270 1/8 3 1/4 6 125 120 3000 0.5
3/8 10 SCFH) SCFH) SCFH) 1/8 3 1/4 6 125 100 2540 1.0
1/2 12 .157 4 .314 8 125 80 2030 2.0
5/8 15 .157 4 .314 8 130 70 1780 2.0
3/4 20 3/16 5 3/8 10 135 55 1400 2.5
7/8 22 1/4 6 1/2 12 135 45 1140 2.5
1 25 1/4 6 1/2 12 140 35 890 2.5
1-1/4 32 1/4 6 1/2 12 150 22 560 3.0
1-1/2 38 1/4 6 1/2 12 155 15 380 3.0
1-3/4 44 5/16 8 5/8 12 165 10 250 3.0
2 50 5/16 8 5/8 12 170 7 180 3.0
Mild Steel
200 amps • O
2
Plasma / Air Shield
This gas combination gives superior cut speed, minimum dross, minimum surface nitriding and excellent
weldability.
Above Water
1/4 6
5 45 64 0 70
1/8 3 1/4 6 125 145 3700 0.5
.315 8 (5.3 / 62.4 (79.6 / 0 (280 1/8 3 1/4 6 125 110 2800 0.5
3/8 10 SCFH) SCFH) SCFH) 1/8 3 1/4 6 130 80 2000 1.0
1/2 12 1/8 3 1/4 6 130 70 1800 2.0
5/8 15 .157 4 .314 8 135 60 1500 2.0
3/4 20 3/16 5 3/8 10 140 48 1200 2.5
7/8 22 1/4 6 1/2 12 140 38 950 3.0
1 25 1/4 6 1/2 12 145 25 680 3.0
3" Under Water
120833*
(cw)
120834
(ccw)
Swirl ring
020605
Nozzle
020423
(cw)
020955
(ccw)
Retaining cap
020424
Shield
120667 (standard)
Electrode
220084 (optional)
SilverPlus electrode
+
Notes:
Set oxygen plasma gas inlet pressure to 120 psi (8.3 bar).
Set nitrogen plasma gas inlet pressure to 120 psi (8.3 bar)
Set shield gas inlet pressure to 90 psi (6.2 bar)
Production cutting above 1" (25 mm) not recommended. Drop cutting above 1-1/2" (38 mm) not recommended
* Use 020679 swirl ring in place of 120833 swirl ring to obtain smoother cut edges on material
1/4" to 3/8" thick, but expect a 30-40% decrease in electrode life
+ SilverPlus provides increased life to high duty cycle users in most applications. The hafnium wears to
approximately twice the depth of a standard electrode (120667). Arc voltage may need to be increased by 5-10
volts throughout the electrode life to maintain proper cut height parameters.