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ESAB CuTmASTEr 100
F. Torch Ratings
manual Torch ratings
Ambient
Temperature
Duty Cycle
100% @ 100 Amps @ 400 scfh
maximum Current
Voltage (V
)
peak
Arc Striking Voltage
mechanized Torch ratings
Ambient
Temperature
Duty Cycle
100% @ 100 Amps @ 400 scfh
maximum Current
Voltage (V
)
peak
Arc Striking Voltage
G. Gas Requirements
manual and mechanized Torch Gas Specifications
Gas (Plasma and Secondary)
Operating Pressure
refer to NOTE
maximum Input Pressure
Gas Flow (Cutting and Gouging)
WARNING
!
This torch is not to be used with oxygen (O
NOTE!
Operating pressure varies with torch model, oper-
ating amperage, and torch leads length. Refer to
gas pressure settings charts for each model.
H. Direct Contact Hazard
For standoff tip the recommended standoff is 3/16
inches / 4.7 mm.
2T.04 Options And Accessories
For options and accessories, see Section 6.
2T-2
All manuals and user guides at all-guides.com
2T.05 Introduction to Plasma
A. Plasma Gas Flow
104° F
40° C
120 Amps
500V
7kV
104° F
40° C
120 Amps
500V
7kV
Compressed Air
60 - 95 psi
4.1 - 6.5 bar
125 psi / 8.6 bar
Power
Supply
300 - 500 scfh
142 - 235 lpm
).
2
INTRODUCTION
Plasma is a gas which has been heated to an
extremely high temperature and ionized so that it
becomes electrically conductive. The plasma arc
cutting and gouging processes use this plasma
to transfer an electrical arc to the workpiece. The
metal to be cut or removed is melted by the heat
of the arc and then blown away.
While the goal of plasma arc cutting is separation
of the material, plasma arc gouging is used to
remove metals to a controlled depth and width.
In a Plasma Cutting Torch a cool gas enters Zone
B, where a pilot arc between the electrode and
the torch tip heats and ionizes the gas. The main
cutting arc then transfers to the workpiece through
the column of plasma gas in Zone C.
_
+
C
Typical Torch Head Detail
By forcing the plasma gas and electric arc through
a small orifice, the torch delivers a high concentra-
tion of heat to a small area. The stiff, constricted
plasma arc is shown in Zone C. Direct current
(DC) straight polarity is used for plasma cutting,
as shown in the illustration.
Zone A channels a secondary gas that cools the
torch. This gas also assists the high velocity
plasma gas in blowing the molten metal out of the
cut allowing for a fast, slag - free cut.
A
B
Workpiece
A-00002
Manual 0-5404
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