Cutting Charts - Lincoln Electric SPIRIT II 275 Technical Manual

Section 5: Torch Consumables and Cutting Charts

Cutting Charts

The cutting charts shown on the following pages are intended to give the
operator the best starting point to use when making a cut on a particular material
type and thickness. Small adjustments may have to be made to achieve the best
cut. Also, remember that the arc voltage must be increased as the electrode
wears in order to maintain the correct cutting height.
Material Current
Mild Steel 30 Amps
Mild Steel 50 Amps
Mild Steel 70 Amps
Mild Steel 100 Amps
Mild Steel 150 Amps
Mild Steel 200 Amps
Mild Steel 275 Amps
Stainless Steel 30 Amps
Stainless Steel 50 Amps
Stainless Steel 70 Amps
Stainless Steel 70 Amps
Stainless Steel 100 Amps
Stainless Steel 100 Amps
Stainless Steel 150 Amps
Stainless Steel 150 Amps
Stainless Steel 200 Amps
Stainless Steel 200 Amps
Stainless Steel 260 Amps
Stainless Steel 275 Amps
Aluminum 30 Amps
Aluminum 50 Amps
Aluminum 70 Amps
Aluminum 100 Amps
Aluminum 150 Amps
Aluminum 200 Amps
Aluminum 275 Amps
IMPROPER GAS USAGE can cause explosion and/or fire.
• The combination of Preflow/Postflow, Plasma and Shield input gases should always
adhere to the types specified in the cut charts for a given material type.
• When changing to a different type of gas (oxidizing or oxygen containing to combustible
or vice versa), a purge of the gas lines (30 second minimum) must be completed to
reduce the risk of fire or explosion.
• Do not connect H17 (combustible gas) as an input gas (Pre/Postflow, Plasma, or
Shield) at the same time as Oxygen or Air.
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.
Preflow & Plasma
Postflow Gas Gas
Air Oxygen
Air Oxygen
Air Oxygen
Air Oxygen
Air Oxygen
Air Oxygen
Air Oxygen
Air Air
Air Air
Nitrogen H17
Air Air
Nitrogen H17
Air Air
Nitrogen H17
Air Air
Nitrogen H17
Air Air
Nitrogen H17
Air Air
Air Air
Air Air
Air Air
Air Air
Air Air
Air Air
Air Air
WARNING
5-14
Spirit II User's Manual
Shield Copper
Gas Electrode
Oxygen Page 5-15
Oxygen or Air Page 5-16
Air Page 5-17
Air Page 5-18
Air Page 5-19
Air Page 5-20
Air Page 5-21
Air Page 5-22
Nitrogen Page 5-23
Nitrogen Page 5-24
Nitrogen Page 5-25
Nitrogen Page 5-26
Nitrogen Page 5-27
Nitrogen Page 5-28
Nitrogen Page 5-29
Nitrogen Page 5-30
Nitrogen Page 5-31
Nitrogen Page 5-32
Nitrogen Page 5-33
Nitrogen Page 5-34
Nitrogen Page 5-35
Nitrogen Page 5-36
Nitrogen Page 5-37
Nitrogen Page 5-38
Nitrogen Page 5-39
Nitrogen Page 5-40
Silver
Electrode
Page 5-41
Page 5-42
Page 5-43
Page 5-44
Page 5-45
Page 5-46
Page 5-47
Page 5-48
Page 5-49
Page 5-50
Page 5-51