Lincoln Electric SPIRIT II 275 Technical Manual page 108

Section 5: Torch Consumables and Cutting Charts
Air Plasma / Nitrogen Shield / Air Preflow & Postflow
Shield Cap
BK277117
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
1/4
3/8
1/2 20
5/8
3/4
Metric*
Material
Preflow
Thickness
(mm) (psi)
6
10
12 20
16
20
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.
(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 - 150 Amps - Silver Electrode
Nozzle
BK279493
Retaining Cap
BK277152
Plasma Shield Postflow
(psi) (psi) (psi)
71 70 69
Plasma Shield Postflow
(psi) (psi) (psi)
71 70 69
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
Electrode
BK279420
(green o-ring)
Swirl Ring
BK279439
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
145 150 .160
150 115 .180
155 85 .210
160 60 .220
168 45 .240
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
144 3910
150 2805
153 2330
160 1510
170 1030
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min)
135 250 6350
65 100 2540
5-46
Spirit II User's Manual
Torch Head
BK279060
Pierce Pierce
Height Time
(in) (msec)
.250 400
.275 500
.300 600
.325 800
.350 1200
Pierce Pierce
Height Time
(mm) (msec)
4.0 6.3 400
4.7 7.0
600
5.1 7.4
5.6 8.3 800
6.2 9.0 1200
Marking Initial
Height Height
(in) (mm) (in) (mm) (msec)
.100 2.5 .100 2.5
.100 2.5 .100 2.5
Kerf
Width
(in)
.125
.130
.135
Kerf
Width
(mm)
3.2
3.3
3.4
Pierce
Time
0
0