Tweco A120 CutMaster - Manual (Page 98)

CUTMASTER A120
OPERATION Manual 0-4989 4T-64
Mild Steel
120A
Air Plasma / Air Shield
Shield Cap Maximum Life Shield Cup Tip
Starter Cartridge
Heavy Duty Starter
Cartridge
Electrode
9-8256 9-8237 9-8233
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)
1/4 0.250
80 (25')
80 (50')
139 0.125 160 0.20 0.20 0.11
3/8 0.375 140 0.125 85 0.20 0.20 0.11
1/2 0.500 142 0.125 75 0.20 0.50 0.10
5/8 0.625 144 0.125 45 0.20 0.70 0.11
3/4 0.750 150 0.125 30 0.25 1.50 0.12
7/8 0.875 158 0.175 25 Edge Start 0.13
1 1.000 160 0.175 22 Edge Start 0.14
1-1/4 1.250 165 0.175 15 Edge Start 0.17
1-1/2 1.500 171 0.175 8 Edge Start 0.15