Lincoln Electric SPIRIT II 275 Technical Manual page 80

Section 5: Torch Consumables and Cutting Charts
Oxygen Plasma / Air Shield / Air Preflow & Postflow
Shield Cap
BK277286
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
1/4
3/8
1/2 25
5/8
3/4
Metric*
Material
Preflow
Thickness
(mm) (psi)
6
10
12 25
16
20
Marking* – For All Material Thicknesses
Type of Gas Preflow
(Plasma) (Shield) (psi)
Nitrogen Nitrogen N/A
Argon Air 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 .200" (5.1 mm) for cutting and .100" (2.5 mm) for marking.
(Revised 08/03/2017)
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.
Mild Steel - 100 Amps - Copper Electrode
Nozzle
BK277284
Retaining Cap
BK277151
Plasma Shield Postflow
(psi) (psi) (psi)
83 26 81
Plasma Shield Postflow
(psi) (psi) (psi)
83 26 81
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
5-18
Electrode
BK277282
Swirl Ring
BK277283
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
125 150 .090
100 .130
130
65 .155
143 47
.185
145 35
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
124 3950 2.1
2405 3.3
130
1850 3.7
143 1180
4.7
145 800
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min) (in)
130 250 6350 .100
60 100 2540 .100
Spirit II User's Manual
Torch Head
BK279100
Pierce Pierce Kerf
Height Time Width
(in) (msec) (in)
.200 300 0.070
.250 400 0.078
.300 500 0.085
.325 800 0.092
.350 1000 0.098
Pierce Pierce Kerf
Height Time Width
(mm) (msec) (mm)
4.9 300 1.8
6.5 2.0
500
7.3 2.1
8.3 2.3
1000
9.0 2.5
Marking Initial Pierce
Height Height Time
(mm) (in) (mm) (msec)
2.5 .100 2.5 0
2.5 .100 2.5 0