Lincoln Electric SPIRIT II 275 Technical Manual page 92

Section 5: Torch Consumables and Cutting Charts
H17 Plasma / Nitrogen Shield / Nitrogen Preflow & Postflow
This gas combination gives the good cut quality and minimum dross levels
Shield Cap
BK277274
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
3/8
1/2
5/8 37
3/4
1.0
Metric*
Material
Preflow
Thickness
(mm) (psi)
10
12
16 37
20
25
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 - 200 Amps - Copper Electrode
(H17 = 17.5% Hydrogen / 32.5% Argon / 50% Nitrogen)
Nozzle
BK277287
Retaining Cap
BK277266
Plasma Shield Postflow
(psi) (psi) (psi)
72 79 68
Plasma Shield Postflow
(psi) (psi) (psi)
72 79 68
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
Electrode
BK277135
Swirl Ring
BK277259
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
156 80 .195
148 75 .130
155 60 .190
160 50 .200
170 35 .240
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
154 2010
149 1935
155 1515
161 1215
169 915
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min)
120 250 6350
72 100 2540
5-30
Spirit II User's Manual
Torch Head
BK279100
Pierce Pierce
Height Time
(in) (msec)
.250 500
.300 600
.350 800
.400 1200
.450 1500
Pierce Pierce
Height Time
(mm) (msec)
4.7 6.5
600
3.6 7.3
4.8 8.9 800
5.2 10.3
1500
6.0 11.3
Marking Initial
Height Height
(in) (mm) (in) (mm) (msec)
.100 2.5 .100 2.5
.120 3.0 .100 2.5
Kerf
Width
(in)
.150
.155
.160
Kerf
Width
(mm)
3.8
3.9
4.1
Pierce
Time
0
0