Lincoln Electric SPIRIT II 150 Technical Manual page 86

Section 5: Torch Consumables and Cutting Charts
H17 Plasma / Nitrogen Shield / Nitrogen Preflow & Postflow
This gas combination gives the best cut quality and minimum dross levels
Shield Cap
BK277146
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
3/16
1/4 28
3/8
Metric*
Material
Preflow
Thickness
(mm) (psi)
5
28
6
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 .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 - 100 Amps - Copper Electrode
(H17 = 17.5% Hydrogen / 32.5% Argon / 50% Nitrogen)
Nozzle
BK277126
Retaining Cap
BK277113
Plasma Shield Postflow
(psi) (psi) (psi)
72 40 67
Plasma Shield Postflow
(psi) (psi) (psi)
72 40 67
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
Electrode
BK277133
Swirl Ring
BK277141
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
138 115 .105
140 100 .125
152 65 .180
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
138 2865
139 2625
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min) (in)
130 250 6350
80 100 2540
5-24
Spirit II User's Manual
Torch Head
BK279100
Pierce Pierce
Height Time
(in) (msec)
.200 300
.225 400
.250 500
Pierce Pierce
Height Time
(mm) (msec)
2.7 5.1
400
3.0 5.5
Marking Initial
Height Height
(mm) (in) (mm) (msec)
.100 2.5 .100 2.5
.110 2.8 .100 2.5
Kerf
Width
(in)
.100
.105
Kerf
Width
(mm)
2.5
2.7
Pierce
Time
0
0