cutmaster 39
Manual 0-4976 2T-1 INTRODUCTION
SECTION 2 TORCH:
INTRODUCTION
2T.01 Scope of Manual
This manual contains descriptions, operating
instructions and maintenance procedures for
the 1Torch Model SL60 Plasma Cutting Torch.
Service of this equipment is restricted to prop-
erly trained personnel; unqualied personnel are
strictly cautioned against attempting repairs or
adjustments not covered in this manual, at the risk
of voiding the Warranty.
Read this manual thoroughly. A complete under-
standing of the characteristics and capabilities of
this equipment will assure the dependable opera-
tion for which it was designed.
2T.02 General Description
Plasma torches are similar in design to the auto-
motive spark plug. They consist of negative and
positive sections separated by a center insulator.
Inside the torch, the pilot arc starts in the gap
between the negatively charged electrode and
the positively charged tip. Once the pilot arc has
ionized the plasma gas, the superheated column of
gas ows through the small orice in the torch tip,
which is focused on the metal to be cut.
A single torch lead provides gas from a single
source to be used as both the plasma and second-
ary gas. The air ow is divided inside the torch
head. Single - gas operation provides a smaller
sized torch and inexpensive operation.
NOTE
Refer to Section 2T.05, Introduction To Plasma,
for a more detailed description of plasma torch
operation.
Refer to the Appendix Pages for additional specifi-
cations as related to the Power Supply used.
2T.03 Specifications
A. Torch Configurations
1. Hand Torch, Model SL60
The hand torch head is at 75° to the torch handle.
The hand torches include a torch handle and torch
trigger assembly.
B. Torch Leads Lengths
Hand Torches are available as follows:
• 20 ft / 6.1 m.
C. Torch Parts
Starter Cartridge, Electrode, Tip, Shield Cup
D. Parts - In - Place (PIP)
Torch Head has built - in switch
12 vdc circuit rating
E. Type Cooling
Combination of ambient air and gas stream through
torch.
F. Torch Ratings
SL60 Torch Ratings
Ambient
Temperature
104° F
40° C
Duty Cycle
100% @ 60 Amps @ 400 scfh
Maximum Current
60 Amps
Voltage (V
peak
)
500V
Arc Striking Voltage
7kV
G. Current Ratings
SL60 Current Ratings
SL60 Torch & Leads
Up to 60 Amps, DC,
Straight Polarity
NOTE
Power Supply characteristics will determine mate-
rial thickness range.
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