Lincoln Electric SPIRIT II 275 Technical Manual page 93

Spirit II User's Manual
Air Plasma / Nitrogen Shield / Air Preflow & Postflow
This gas combination gives medium cut quality and minimum dross levels
Shield Cap
BK277274
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
1/4
3/8
1/2
5/8
20
3/4
1.0
1.25 **
1.50 **
Metric*
Material
Preflow
Thickness
(mm) (psi)
6
10
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) as an input gas (Pre/Postflow, Plasma, or Shield) at the same time as
Oxygen or Air.
* Use an arc transfer height (ignition height) of .200" (5.1 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 - 200 Amps - Copper Electrode
Nozzle
BK277289
Retaining Cap
BK277266
Plasma Shield Postflow
(psi) (psi) (psi)
74 58 72
Plasma Shield Postflow
(psi) (psi) (psi)
74 58 72
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
Section 5: Torch Consumables and Cutting Charts
Electrode
BK277291
Swirl Ring
BK277143
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
130 200
.070
133 150
140 110 .115
146 75 .150
153 60 .190
158 40 .210
170 20 .250
180 10 .275
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
129 5220
134 3655
138 3020
146 1890
153 1450
157 1050
170 495
179 260
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min)
120 250 6350
70 100 2540
5-31
Torch Head
BK279100
Pierce Pierce
Height Time
(in) (msec)
.200 400
.250 500
.300 600
.350 800
.400 1200
.450
.350 1500
.350
Pierce Pierce
Height Time
(mm) (msec)
1.8 4.9 400
1.9 6.5
600
2.6 7.3
3.8 8.9 800
4.8 10.3
5.2 11.3
1500
6.4 8.9
6.9 8.9
Marking Initial
Height Height
(in) (mm) (in) (mm) (msec)
.100 2.5 .100 2.5
.100 2.5 .100 2.5
Kerf
Width
(in)
.150
.152
.155
.160
.165
.175
Kerf
Width
(mm)
3.8
3.9
4.1
4.2
4.4
Pierce
Time
0
0