Appendix 1: cutting speed char ts (contin ued) – Tweco PCM-120 Machine Torch User 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.