Cutmaster a120, Mild steel 40a air plasma / air shield – Tweco A120 CutMaster User Manual
Page 42
CUTMASTER A120
OPERATION
Manual 0-4989
4T-8
4T.08 Recommended Cutting Speeds for Machine and Automated Torches With Exposed Tip
Mild Steel
40A
Air Plasma / Air Shield
Deflector
Standard Shield Cup
Maximum Life Shield Cup
Tip
Starter Cartridge
Heavy Duty Starter
Cartridge
Electrode
9-8243
9-8218
9-8237
9-8208
9-8213
9-8277
9-8232
Material
Thickness
Gas Pressure
(Air)
Arc Voltage
Torch
Working
Height
Travel Speed
Initial
Piercing
Height
Pierce Delay
Kerf Width
@ Rec.
Speed
(GA) (in)
inch
PSI
(torch lead
length)
Volts
(in)
(ipm)
(in)
(sec)
(in)
20
0.036
70 (25')
75 (50')
101
0.14
160
0.18
0.0
0.05
16
0.060
103
0.14
140
0.18
0.0
0.05
14
0.075
105
0.14
120
0.18
0.1
0.06
12
0.105
108
0.14
80
0.18
0.2
0.06
10
0.135
110
0.14
60
0.18
0.3
0.06
3/16
0.188
111
0.14
55
0.18
0.4
0.06
1/4
0.250
117
0.14
40
0.18
0.5
0.07
3/8
0.375
119
0.14
25
0.18
1.2
0.07
1/2
0.500
120
0.14
15
0.2
2.0
0.07