Ht4100 operating data (cut) charts, Mild steel - 300 amp cutting o, Plasma / o – Hypertherm HT4100 Plasma Arc Cutting System Operating User Manual
Page 40: Shield
3-12
Notes: O
2
and N
2
gas inlet pressures remain at one setting of 120 psi (8.3 bar) for all material thickness.
O
2
flowrate at full scale is 127 scfh (60 l/min) @ 120 psi (8.3 bar) inlet pressure.
Shield N
2
flowrate at full scale is 338 scfh (160 l/min) @ 120 psi (8.3 bar) inlet pressure.
Plasma N
2
flowrate at full scale is 135 scfh (64 l/min) @ 120 psi (8.3 bar) inlet pressure.
Torch standoff tolerances are
±
0.020 inch /
±
0.5mm. When using a THC, the tolerances are
±
2.5 volt.
* Piercing is not recommended.
Shield
% Full Scale
Preflow
N
2
&
O
2
Plasma
% Full Scale
N
2
&
O
2
Arc
Voltage
(volts)
Arc
Current
(amps)
Torch
Standoff
(in) (mm)
Material
Thickness
(in) (mm)
Cut Flow
Plasma
% Full Scale
Travel
Speed
(ipm) (mm/min)
Pierce
Delay
Time
(sec)
1/4
6
3/8
10
1/2
12.5
5/8
16
3/4
19
7/8
22
1
25
1-1/8
28.5
1-1/4
32
1-3/8
35
1-1/2
38
0
70
0
60
0
60
0
60
0
60
0
60
0
60
0
60
0
60
0
60
0
60
200
260
260
280
300
300
300
300
300
300
300
125
130
135
145
150
150
155
155
155
155
155
.06 1.5
1/8
3
1/8
3
3/16
5
3/16
5
3/16
5
3/16
5
3/16
5
3/16
5
3/16
5
3/16
5
160
4065
145
3680
105
2650
90
2280
80
2030
70
1780
55
1400
50
1270
45
1145
40
1015
35
890
30
0
30
0
30
0
30
0
30
0
30
0
30
0
30
0
30
0
30
0
30
0
0.3
0.5
0.7
0.9
1.1
1.3
1.5
*
*
*
*
28
7
28
7
28
7
28
7
28
7
28
7
28
7
28
7
28
7
28
7
28
7
Shield
% Full Scale
N
2
&
O
2
14
9
14
9
14
9
14
11
14
11
14
11
14
11
14
11
14
11
14
11
14
11
N
2
or
O
2
Initial
Pierce
Height
(in) (mm)
3/16 4.7
3/16 4.7
3/16 4.7
1/4 6.3
1/4 6.3
3/8 9.5
3/8 9.5
*
*
*
*
Nozzle
120096 (cw)
120116 (ccw)
PAC610 Torch
120107
Electrode
020721
Swirl Ring
120108 (cw)
120115 (ccw)
Nozzle Retaining Cap
120103
HT4100 Operating Data (Cut) Charts
Mild Steel - 300 Amp Cutting
O
2
Plasma / O
2
& N
2
Shield
9-98