Lincoln Electric SPIRIT II 275 Technical Manual page 110

Section 5: Torch Consumables and Cutting Charts
Air Plasma / Nitrogen Shield / Air Preflow & Postflow
Shield Cap
BK277286
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
1/4
3/8 25
1/2
Metric*
Material
Preflow
Thickness
(mm) (psi)
6
10 25
12
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) 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 .250" (6.4 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.
Aluminum - 100 Amps - Silver Electrode
Nozzle
BK279484
Retaining Cap
BK277151
Plasma Shield Postflow
(psi) (psi) (psi)
80 26 80
Plasma Shield Postflow
(psi) (psi) (psi)
80 26 80
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
5-48
Electrode
BK279410
(brown o-ring)
Swirl Ring
BK279483
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
158 105 .155
162 90 .180
165 70 .195
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
158 2710 3.8
162 2210 4.6
165 1890 4.9
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min) (in)
130 250 6350 .100
71 100 2540 .120
Spirit II User's Manual
Torch Head
BK279060
Pierce Pierce Kerf
Height Time Width
(in) (msec) (in)
.250 300 .095
.275 400 .098
.300 500 .100
Pierce Pierce Kerf
Height Time Width
(mm) (msec) (mm)
6.3 300 2.4
7.0
500 2.5
7.4
Marking Initial Pierce
Height Height Time
(mm) (in) (mm) (msec)
2.5 .100 2.5 0
3.0 .100 2.5 0