Hypertherm PAC500 Water Injection Plasma Cutting System - Manual (Page 37)

4-6 PAC500 Instruction Manual
4
OPERATION
Cut Charts
Operating Data for Mild Steel
Material
Thickness
Inches mm
Nozzle and
Swirl ring
Size
inches
Gas Type and
Flowmeter
Setting
%
Injection
Water Flow
Setting
%
Torch to
Work
Distance
Inches mm
Arc
Voltage
Setting
Volts
Arc
Current
Setting
Amperes
Travel
Speed
ipm mm/min
.035 1 1/8 3 125 250 450 11430
.075 2 .120 N
2
30 85 1/8 3 130 250 300 7620
1/8 3 3/16 5 135 260 200 5080
1/4 6 Maximum current for this nozzle is 260 amp. 1/4 6 145 260 150 3810
1/8 3 1/4 6 140 300 200 5080
1/4 6 .166 N
2
45 75 1/4 6 145 350 150 3810
3/8 10 1/4 6 150 380 125 3175
1/2 13 Maximum current for this nozzle is 400 amp. 1/4 6 155 400 100 2540
1/2 13 3/8 10 160 500 115 2920
3/4 19 .187 N
2
45 75 3/8 10 165 500 75 1905
1 25 3/8 10 165 600 60 1525
1-1/4 32 Maximum current for this nozzle is 600 amp. 3/8 10 175 600 45 1145
1-1/4 32 1/2 13 185 700 50 1270
1-1/2 38 .220 N
2
70 100 1/2 13 195 700 40 1005
1-3/4 44 1/2 13 200 725 35 890
2 50 Maximum current for this nozzle is 750 amp. 1/2 13 205 725 30 760
Use the brass tapered retaining cap part no. 020034 above 400 amperes.
To obtain optimum cut quality, plasma arc cutting nozzles are usually operated at an arc current slightly below the
level that results in double-arcing. Attempting to operate nozzles above the maximum limit will cause a deterioration
in performance.
The conditions listed above are chosen for optimum cut quality (not speed) and will generally produce excellent
results. If deviations from these conditions are necessary, they should be limited to changes in arc current, arc
voltage, and travel speed. These parameters have a significant effect on cut quality. Do not deviate from specified
gas and water flows.