Stainless steel, 300a, H35 plasma / n₂ shield – Tweco Ultra-Cut Torch Data User Manual
Page 53: This art is for reference only
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Manual 0-4828
Rev BA 8-53
TORCH DATA for Ultra-Cut
Stainless Steel
Flow Rates (SLPM / SCFH)
300A
H35
N₂
Preflow
- / -
74 / 157
H35 Plasma / N₂ Shield
Cutflow
44 / 93
51 / 108
Shield Retainer
Shield Cap
Shield Gas
Distributor
Tip
Plasma Gas Distributor
Electrode
Cartridge
21-1015
< 1” / 25 mm 21-1038
≥ 1” / 25 mm 21-1039
21-1284
21-1065
21-1041
21-1091
21-1022
GCM-2010
SC-3000 Torch Height Control (THC)
Basic THC
CNC Control
Material
Thickness
Pre Flow
Pressure
(N₂)
Cut Flow Rates / Pressures
Arc
Voltage Cut Height
THC
Pierce
Delay
Pierce
Ignition
Height
Elevation
Height
Control
Delay
Pierce
Height
without
Elevation
Travel
Speed
CNC
Motion
Delay
Max Kerf Width
@ Rec. Speed
Plasma (H35) Shield (N₂)
ga
(in)
inch
(psi)
Ball (psi) Ball (psi) (Volts) (in) ±0.005 (sec)
(in)
(in)
(sec)
(in)
(ipm)
(sec)
(in)
-
3/8
0.375
20
120 100 NA 120
160
0.350
0.2
0.250 0.200
0.4
0.350
85
0.2
0.175
-
1/2
0.500
20
120 100 NA 120
168
0.350
0.4
0.250 0.200
0.2
0.350
75
0.4
0.193
-
5/8
0.625
20
120 100 NA
90
163
0.350
0.7
0.275 0.250
0.2
0.375
65
0.5
0.197
-
3/4
0.750
20
120 100 NA
90
168
0.350
0.9
0.275 0.250
0.2
0.375
55
0.6
0.195
-
7/8
0.875
20
120 100 NA
90
170
0.350
1.1
0.275 0.250
0.2
0.375
45
0.7
0.210
-
1
1.000
20
120 100 NA 120
173
0.350
1.6
0.400 0.400
0.2
0.500
35
0.9
0.226
-
1 1/4 1.250
20
120 100 NA 120
180
0.400
1.8
0.400 0.400
0.2
0.700
30
1.0
0.203
-
1 1/2 1.500
20
120 100 NA 120
180
0.400
0.5
Edge Start
0.2
Edge
25
0.5
0.220
-
1 3/4 1.750
20
120 100 NA 120
183
0.400
0.5
Edge Start
0.2
Edge
21
0.5
0.229
-
2
2.000
20
120 100 NA 120
186
0.400
0.5
Edge Start
0.2
Edge
17
0.5
0.237
GCM-2010
SC-3000 Torch Height Control (THC)
Basic THC
CNC Control
Material
Thickness
Pre Flow
Pressure
(N₂)
Cut Flow Rates / Pressures
Arc
Voltage Cut Height
THC
Pierce
Delay
Pierce
Ignition
Height
Elevation
Height
Control
Delay
Pierce
Height
without
Elevation
Travel
Speed
CNC
Motion
Delay
Max Kerf Width
@ Rec. Speed
Plasma (H35) Shield (N₂)
(mm)
(Bar)
Ball (Bar) Ball (Bar) (Volts) (mm) ±0.1 (sec)
(mm)
(mm)
(sec)
(mm)
(mm/
min)
(sec)
(mm)
10
1.4
120 6.9
NA
8.3
161
8.9
0.2
6.4
5.1
0.4
8.9
2120
0.2
4.5
12
1.4
120 6.9
NA
8.3
166
8.9
0.4
6.4
5.1
0.2
8.9
1960
0.4
4.8
15
1.4
120 6.9
NA
6.8
164
8.9
0.6
6.8
6.0
0.2
9.3
1720
0.5
5.0
20
1.4
120 6.9
NA
6.2
169
8.9
1.0
7.0
6.4
0.2
9.5
1320
0.6
5.1
25
1.4
120 6.9
NA
8.0
173
8.9
1.5
9.8
9.7
0.2
12.3
920
0.9
5.7
30
1.4
120 6.9
NA
8.3
178
9.8
1.7
10.2
10.2
0.2
16.4
800
1.0
5.3
35
1.4
120 6.9
NA
8.3
184
10.8
1.9
10.2
10.2
0.2
20.4
700
1.1
4.9
40
1.4
120 6.9 NA 8.3
181
10.2
0.5
Edge Start
0.2
Edge
600
0.5
5.7
45
1.4
120 6.9 NA 8.3
183
10.2
0.5
Edge Start
0.2
Edge
520
0.5
5.8
50
1.4
120 6.9 NA 8.3
186
10.2
0.5
Edge Start
0.2
Edge
440
0.5
6.0
Marking
Pre Flow
Pressure
(N₂)
Marking Flow Rates /
Pressures
Arc
Voltage
Marking
Height
Pierce Ignition Height
THC and CNC
Delay
Control
Delay
Travel
Speed
Marking quality
degrades as
thickness
decreases.
24A Arc Current
Plasma (N₂)
Shield (N₂)
Burn-through may
happen for thicknesses
< 1/16” (0.063”) /
1.6 mm.
(psi) /
(Bar)
Ball (psi) /
(Bar)
Ball (psi) /
(Bar) (Volts)
(in) ±0.005 /
(mm) ±0.1
(in) ±0.005 / (mm) ±0.1
(sec)
(sec)
(ipm) /
(mm/ min)
15 / 1.0
80
60 /
4.1
NA
90 /
6.2
135 0.120 / 3.0
0.120 / 3.0
0
0.4
300 /
7620
BOLD TYPE indicates maximum piercing parameters. BOLD ITALIC indicates edge starts only.
Electrode
Shield Retainer
Tip
Art # A-08567_AB
Plasma Gas
Distributor
Cartridge Assembly
This Art Is For Reference ONLY
Shield Cap
Shield Gas
Distributor