Tweco A80-A120 CutMaster - Manual (Page 41)

CUTMASTER A80, A120
Manual 0-5119 OPERATION
4T-9
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 Electrode
9-8243
9-8218
9-8237
9-8208 9-8213 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
Material
Thickness
Gas Pressure
(Air)
Arc Voltage
Torch
Working
Height
Travel
Speed
Initial
Piercing
Height
Pierce Delay
Kerf Width
@ Rec.
Speed
(mm)
Bar
(torch lead
length)
Volts (mm) (mm/min) (mm) (sec) (mm)
1
4.8 (7.6 m)
5.2 (15.2 m)
101 3.6 3990 4.6 0.0 1.1
2 105 3.6 2920 4.6 0.1 1.4
3 109 3.6 1810 4.6 0.3 1.5
4 110 3.6 1470 4.6 0.3 1.6
5 112 3.6 1345 4.6 0.4 1.6
6 116 3.6 1100 4.6 0.5 1.7
8 118 3.6 815 4.6 1.0 1.7
10 119 3.6 595 4.6 1.5 1.8
12 120 3.6 435 5.1 2.0 1.8
BOLD TYPE indicates maximum piercing parameters.