
Manual 0-4730 Rev. AF 8-4 TORCH DATA
Mild Steel
50A
O
2
Plasma / Air Shield
Cartridge
21-1020Electrode
21-1069
Plasma
Gas Distributor
21-1041
Tip
21-1051
Shield Cap
21-1025
Shield Cup
21-1016
Art # A-06085
Shield
Gas Distributor
21-1272
(ga) (in) inch (psi) Ball (psi) Ball (psi) Volts
(in)
±0.005
(ipm) (in) (sec) (in)
14 0.075 70 28 120 20 120 130 0.060 320 0.100 0.0 0.040
12 0.105 70 28 120 20 120 130 0.060 270 0.100 0.0 0.052
10 0.135 70 28 120 20 120 126 0.040 160 0.100 0.4 0.044
3/16 0.188 70 28 120 40 120 130 0.060 100 0.110 0.4 0.054
1/4 0.250 70 28 120 40 120 132 0.060 90 0.110 0.4 0.062
(bar) Ball (bar) Ball (bar) Volts
(mm)
±0.1
(mm/min)
(mm) (sec) (mm)
4.8 28 8.3 20 8.3 130 1.5 7970 2.5 0.0 1.1
4.8 28 8.3 20 8.3 128 1.3 5640 2.5 0.2 1.2
4.8 28 8.3 20 8.3 128 1.2 3420 2.7 0.4 1.2
4.8 28 8.3 40 8.3 130 1.5 2500 2.8 0.4 1.4
4.8 28 8.3 40 8.3 132 1.5 2340 2.8 0.4 1.5
Ball Press Ball Press Volts
in ±0.005 /
mm ±0.1
ipm /
mm/min
in ±0.005 /
mm ±0.1
sec
20 psi
1.4 bar
40
40 psi
2.8 bar
75
80 psi
5.5 bar
160
0.12
3
300
7600
0.12
3
0
50A Mild Steel (O
2
/Air)
Material
Thickness
Pre Flow
Pr e s s ur e
(Air)
Cut Flow Rates / Pressures
Arc
Voltage
Torch
Working
Height
Travel
Speed
Initial
Piercing
Height
Pierce
Delay
er
Width
@ Rec.
Speed
Plasma (O
2
) Shield (Air)
Material
Thickness
Pre Flow
Pr e s s ur e
(Air)
Cut Flow Rates / Pressures
l
Pierce
Delay
Kerf
Width
@ Rec.
Speed
Plasma (O
2
)
Initial
Piercing
Height
Arc
Voltage
Torch
Working
Height
Travel
Speed
4
(mm)
2
3
Shield (Air)
Pre Flow
Pr e s s ur e
(
N
2
)
Plasma
Pressure (
N
2
)
Arc
Voltage
5
6
Torch
Working
Height
Travel
Speed
Shield
Pressure (
N
2
)
Marking (with 50A Mild Steel Parts)
Cut Flow Rates / Pressures
18A Arc Current
Initial
Piercing
Height
Pierce
Delay
Burn-through
may happen for
thicknesses < 1/16"
(0.063") / 1.6 mm
Marking
quality
degrades
as
thickness
decreases.
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