Oxygen, Ht4001 without slave, Pac620 torch – beveling consumables – Hypertherm HT4001 Plasma Arc Cutting System User Manual
Page 117: Mild steel – oxygen plasma
5-26
HT4001
Instruction Manual
1-99
HT4001 without Slave
PAC620 Torch – Beveling Consumables
Mild Steel – Oxygen Plasma
Notes:
Minimum O
2
inlet pressure remains at one setting of 120 psi (8.2 bar) for all material thickness.
Minimum N
2
inlet pressure remains at one setting of 150 psi (10.3 bar) for all material thickness.
O
2
flow rate at full scale is 127 scfh (60 l/min) @ 120 psi (8.2 bar) inlet pressure.
N
2
flow rate at full scale is 374 scfh (176 l/min) @ 150 psi (10.3 bar) inlet pressure.
Water chiller pump outlet pressure remains between 175-185 psi (12-12.8 bar) for all material thickness.
Set initial torch height (before piercing) to approximately twice the Torch Standoff distance for the material you
are cutting.
Retaining Cap
120390 (Vect)
120391 (Vesp)
Nozzle
120384 (cw)
120385 (ccw)
Swirl Ring
120460 (cw)
120461 (ccw)
Electrode
340 A
120836
Water Tube – O
2
Bevel
020992
120470 – CE (Vect)
120471 – CE (Vesp)
E
N
G
L
I
S
H
M
E
T
R
I
C
Test Cut Flow
Rate
(N
2
)
&
(O
2
)
(O
2
)
(in)
(mm)
(%)
(%)
(%)
(%)
(in)
(mm)
(ipm)
(mm/min)
1/2
12.7
16
11
85
73
135
340
3/16
5
110
2800
3/4
19.1
16
11
85
73
140
340
3/16
5
85
2160
1
25.4
16
11
85
73
145
340
3/16
5
65
1650
1-1/4
31.8
16
11
85
73
145
340
3/16
5
45
1140
340A
Arc Volts
(V)
Arc
Current
(A)
Torch
Standoff
Travel Speed
Electrode
Material
Thickness
Test Preflow
Rate
Water Flow
Setting
Test Cut Flow
Rate
(N
2
)
&
(O
2
)
(O
2
)
(mm)
(%)
(%)
(%)
(%)
(mm)
(mm/min)
15
16
11
85
73
135
340
5
2570
20
16
11
85
73
140
340
5
2080
25
16
11
85
73
145
340
5
1680
30
16
11
85
73
145
340
5
1280
340A
Arc Volts
(V)
Arc
Current
(A)
Torch Standoff
Travel Speed
Electrode
Material
Thickness
Test Preflow
Rate
Water Flow
Setting