Tweco PCM-120 Machine Torch - Manual (Page 53)

Man
ual 0-2698
A-3
APPENDIX
APPENDIX 1:
CUTTING SPEED CHAR
TS (contin
ued)
Air Plasma Cutting Speed Data Chart
Type Torch: PCM-120 Type Material: Mild Steel
Type Plasma Gas: Air Type Secondary Gas: Air
Thickness Tip Output Volts Amperage Speed (Per Minute) Standoff Plasma Gas Press Sec Gas Press Total Flow (SCFH) Pierce Height
Inches mm (Cat. No.) (VDC) (Amps) Inches Meters Inches mm psi bar psi bar Plasma Secondary Inches mm
21 ga 0.8 20-1220 95 35 400 10.2 0.13 3.3 65 4.5 60 4.1 50 340 0.13 3.3
18 ga 1.2 20-1220 100 35 300 7.6 0.13 3.3 65 4.5 60 4.1 50 340 0.13 3.3
16 ga 1.5 20-1220 100 35 275 7.0 0.13 3.3 65 4.5 60 4.1 50 340 0.13 3.3
13 ga 2.2 20-1220 105 35 150 3.8 0.13 3.3 65 4.5 60 4.1 50 340 0.13 3.3
11 ga 2.9 20-1220 110 35 90 2.3 0.13 3.3 65 4.5 60 4.1 50 340 0.13 3.3
7 ga 4.8 20-1220 110 35 60 1.5 0.13 3.3 65 4.5 60 4.1 50 340 0.13 3.3
1/8 3.2 20-1221 120 70 180 4.6 0.19 4.8 70 4.8 60 4.1 77 340 0.25 6.4
3/16 4.8 20-1221 120 70 140 3.6 0.19 4.8 70 4.8 60 4.1 77 340 0.25 6.4
1/4 6.4 20-1221 122 70 75 1.9 0.19 4.7 70 4.8 60 4.1 77 340 0.25 6.4
3/8 9.5 20-1221 125 70 55 1.4 0.19 4.8 70 4.8 60 4.1 77 340 0.25 6.4
1/2 12.7 20-1221 132 70 35 9.0 0.19 4.8 70 4.8 60 4.1 77 340 0.25 6.4
1/4 6.4 20-1222 125 120 125 3.2 0.25 6.4 65 4.5 60 4.1 78 340 0.38 9.7
3/8 9.5 20-1222 130 120 80 2.0 0.25 6.4 65 4.5 60 4.1 78 340 0.38 9.7
1/2 12.7 20-1222 135 120 55 1.4 0.25 6.4 65 4.5 60 4.1 78 340 0.38 9.7
5/8 15.9 20-1222 140 120 40 1.0 0.25 6.4 65 4.5 60 4.1 78 340 0.38 9.7
3/4 19.1 20-1222 145 120 30 0.8 0.25 6.4 65 4.5 60 4.1 78 340 0.38 9.7
1 25.4 20-1222 160 120 15 0.4 0.25 6.4 65 4.5 60 4.1 78 340 N/R N/R
1 1/4 31.8 20-1222 165 120 12 0.3 0.25 6.4 65 4.5 60 4.1 78 340 N/R N/R
1 1/2 38.1 20-1222 180 120 5 0.1 0.25 6.4 62 4.3 60 4.1 78 340 N/R N/R
N/R = Not Recommended
NOTE
N2/CO2 speeds are typically 10% slower than air/air cuts. The quality of cut will be reduced on carbon steel with N2/CO2 when
compared to air/air cutting.