Lincoln Electric SPIRIT II 400 Technical Manual page 96

Section 5: Torch Consumables and Cutting Charts
Air Plasma / Nitrogen Shield / Air Preflow & Postflow
This gas combination gives medium cut quality and minimum dross levels
Shield Cap
BK277263
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
1/2
5/8
3/4
20
1.0
1.25 **
1.50 **
Metric*
Material
Preflow
Thickness
(mm) (psi)
12
16
20
20
25
32 **
38 **
Marking* – For All Material Thicknesses
Type of Gas Preflow
(Plasma) (Shield) (psi)
Nitrogen Nitrogen N/A
Argon Nitrogen N/A
WARNING Do not connect H17 (combustible gas) to the gas inputs (Pre/Postflow, Plasma, or Shield) at the same time as
Oxygen or Air.
* Use an arc transfer height (ignition height) of .250" (6.4 mm) for cutting and .100" (2.5 mm) for marking.
** Edge start recommended.
(Revised 04/26/2013)
This information is subject to the controls of the Export Administration Regulations [EAR]. This information shall not be provided to
non-U.S. persons or transferred by any means to any location outside the United States contrary to the requirements of the EAR.
Stainless Steel - 275 Amps - Copper Electrode
Nozzle
BK277276
Retaining Cap
BK277266
Plasma Shield Postflow
(psi) (psi) (psi)
73 70 75
Plasma Shield Postflow
(psi) (psi) (psi)
73 70 75
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
Electrode
BK277270
Swirl Ring
BK277258
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
143 120 .125
148 90 .140
152 80 .180
165 55 .210
175 35 .250
185 25 .300
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
141 3220
148 2275
153 1940
164 1435
175 880
184 640
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min)
108 250 6350
55 100 2540
5-34
Spirit II User's Manual
Torch Head
BK279100
Pierce Pierce
Height Time
(in) (msec)
.300 600
.350 800
.400 1200
.450
.350 1500
.350
Pierce Pierce
Height Time
(mm) (msec)
3.1 7.3 600
3.6 8.9 800
4.7 10.3
5.2 11.3
1500
6.4 8.9
7.5 8.9
Marking Initial
Height Height
(in) (mm) (in) (mm) (msec)
.100 2.5 .100 2.5
.130 3.3 .100 2.5
Kerf
Width
(in)
.165
.170
.180
Kerf
Width
(mm)
4.2
4.3
4.6
Pierce
Time
0
0