Lincoln Electric SPIRIT II 275 Technical Manual page 79

Spirit II User's Manual
Oxygen Plasma / Air Shield / Air Preflow & Postflow
Shield Cap
BK277150
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
1/8
3/16
25
1/4
3/8
Metric*
Material
Preflow
Thickness
(mm) (psi)
3
5 25
6
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 .150" (3.8 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 - 70 Amps - Copper Electrode
Nozzle
BK277125
Retaining Cap
BK277153
Plasma Shield Postflow
(psi) (psi) (psi)
35
76 74
40
Plasma Shield Postflow
(psi) (psi) (psi)
35
76 74
40
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
5-17
Section 5: Torch Consumables and Cutting Charts
Electrode
BK277131
Swirl Ring
BK277142
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
110 190
.100
113 130
116 120 .110
122 75 .140
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
109 4995
2.5
113 3265
115 3105 2.7
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min) (in)
135 250 6350 .096
62 100 2540 .100
Torch Head
BK279100
Pierce Pierce Kerf
Height Time Width
(in) (msec) (in)
.150 100 .056
.200 200 .057
.225 300 .059
.250 400 .065
Pierce Pierce Kerf
Height Time Width
(mm) (msec) (mm)
3.6 100 1.4
5.1
300 1.5
5.5
Marking Initial Pierce
Height Height Time
(mm) (in) (mm) (msec)
2.4 .100 2.5 0
2.5 .100 2.5 0