Lincoln Electric SPIRIT II 275 Technical Manual page 105

Spirit II User's Manual
Oxygen Plasma / Air Shield / Air Preflow & Postflow
Shield Cap
BK277274
Outer Cap
BK284150
Imperial*
Material
Preflow
Thickness
(in) (psi)
1/4
3/8
1/2
5/8
3/4
20
1
1.25
1.50 **
1.75 **
2.00 **
Metric*
Material
Preflow
Thickness
(mm) (psi)
6
10
12
16
20
20
25
32
38 **
45 **
50 **
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.
** Edge start recommended.
(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 - 200 Amps - Silver Electrode
Nozzle
BK279489
Retaining Cap
BK277266
Plasma Shield Postflow
(psi) (psi) (psi)
74 58 72
Plasma Shield Postflow
(psi) (psi) (psi)
74 58 72
Plasma Shield Postflow
(psi) (psi) (psi)
25 25 N/A
50 25 N/A
5-43
Section 5: Torch Consumables and Cutting Charts
Electrode
BK279440
(yellow o-ring)
Swirl Ring
BK279443
Arc Travel Cutting
Voltage Speed Height
(volts) (ipm) (in)
125 230 .040
130 140 .090
133 120 .115
137 100 .130
140 75 .150
147 50 .175
155 25 .240
165 17 .300
175 12 .350
185 7 .500
Arc Travel Cutting
Voltage Speed Height
(volts) (mm/m) (mm)
124 6100 .8
130 3480 2.3
132 3160 2.7
137 2515 3.3
141 1810 3.8
146 1310 4.3
155 610 6.1
164 435 7.5
175 295 9.2
183 195 12.2
Arc Travel
Voltage Speed
(volts) (ipm) (mm/min) (in)
120 250 6350 .100
62 100 2540 .100
Torch Head
BK279060
Pierce Pierce Kerf
Height Time Width
(in) (msec) (in)
.200 300 0.090
.250 400 0.094
.300 500 0.100
.350 600 0.107
.400 800 0.116
.450 1000 0.135
.500 0.160
0.189
.350 1500
0.222
.500 0.260
Pierce Pierce Kerf
Height Time Width
(mm) (msec) (mm)
4.9 300 2.3
6.5 2.4
500
7.3 2.5
8.9 800 2.7
10.3 3.0
1000
11.3 3.4
12.7 4.1
8.9 4.8
1500
9.2 5.7
12.2 6.5
Marking Initial Pierce
Height Height Time
(mm) (in) (mm) (msec)
2.5 .100 2.5 0
2.5 .100 2.5 0