Tweco XTTM-300 - Manual (Page 28)

Operation with Manual Gas Control 4A-4 Manual 0-2912
Mild Steel
30A
O
2
Plasma / O
2
- N2 Shield
Or
Ar
t # A-06838
Manual
Gas Control
Cartridge
21-1020 Electrode
21-1068
Plasma
Gas Distributor
21-1040
Tip
21-1050
Shield Cap
21-1024
Shield Cup
21-1016
Art # A-04338
Shield
Gas Distributor
21-1082
(ga) (in) O
2
- O
2
N2 O
2
N2
20 0.036 13 - 13 0 5 55 129 0.050 140 0.120 0.2
16 0.060 13 - 13 0 5 55 137 0.050 80 0.120 0.2
14 0.075 13 - 13 0 5 55 139 0.070 50 0.120 0.2
11 0.120 13 - 17 3 5 55 140 0.070 40 0.120 0.2
10 0.135 13 - 17 3 5 55 142 0.070 35 0.120 0.2
9 0.150 13 - 17 3 5 55 143 0.070 33 0.120 0.3
7 0.179 13 - 17 3 5 55 144 0.070 30 0.120 0.3
O
2
- O
2
N2 O
2
N2
13 - 13 0 5 55 125 1.3 4.8 3.0 0.1
13 - 13 0 5 55 125 1.3 4.1 3.0 0.1
13 - 13 0 5 55 129 1.3 3.6 3.0 0.1
13 - 13 0 5 55 129 1.3 2.9 3.0 0.1
13 - 13 0 5 55 136 1.3 2.2 3.0 0.2
13 - 13 0 5 55 139 1.8 1.3 3.0 0.2
13 - 17 3 5 55 140 1.8 1.1 3.0 0.2
13 - 17 3 5 55 142 1.8 0.9 3.0 0.2
13 - 17 3 5 55 145 1.8 0.7 3.0 0.3
Bold type indicates maximum piercing parameters.
Material
Thickness
Cut Flow Rates (%)
Preflow Flow
Rates
** Arc
Voltage
(volts)
Plasma (%) Shield (%) Preflow (%)
Torch
Working
Height
(in)
Travel
Speed
(ipm)
Initial
Piercing
Height
(in)
Pierce
Delay
(sec)
Pierce
Delay
(sec)
Material
Thickness
(mm)
Cut Flow Rates (%)
Preflow Flow
Rates
** Arc
Voltage
(volts)
Plasma (%) Shield (%) Preflow (%)
1.2
Torch
Working
Height
(mm)
Travel
Speed
(m/min)
Initial
Piercing
Height
(mm)
0.6
0.8
1
5
1.5
2
3
4