CUTMASTER A40
Manual 0-4978 2T-1 INTRODUCTION
SECTION 2 TORCH:
INTRODUCTION
2T.01 Scope of Manual
This manual contains descriptions, operating
instructions and maintenance procedures for the
1Torch Models SL60/Manual, SL100/Mecha-
nized and SL100 SV Automated Plasma Cutting
Torches. Service of this equipment is restricted to
properly 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" on page 2T-2, for a more detailed descrip-
tion 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. Automation Torch, Model
The standard automation torch has a position-
ing tube with rack & pinch block assembly and
a solenoid valve.
Art # A-07402_AC
1.75" /
44.5 mm
1.375" / 35 mm
0.625" /
16 mm
4.95" / 126 mm
1.175" / 30 mm
12.285" / 312 mm
2.875” /
73 mm
2. Machine /Mechanized Torch, Model
The standard machine torch has a positioning
tube with rack & pinch block assembly.
Art # A-02998
1.75" /
44.5 mm
1.375" / 35 mm
15.875" / 403 mm
0.625" /
16 mm
4.95" / 126 mm
1.175" / 30 mm
9.285" / 236 mm
3. Hand/Manual Torch, Models
The hand torch head is at 75° to the torch handle.
The hand torches include a torch handle and torch
trigger assembly.
10.125" (257 mm)
3.75"
(95 mm)
1.17" (29 mm)
Art # A-03322_AB
B. Torch Leads Lengths
Hand Torches are available as follows:
• 20 ft / 6.1 m, with ATC connectors
• 50 ft / 15.2 m, with ATC connectors
Machine / Automation Torches are available
as follows:
• 5 foot / 1.5 m, with ATC connectors
• 10 foot / 3.05 m, with ATC connectors
• 25 foot / 7.6 m, with ATC connectors
• 50 foot / 15.2 m, with ATC connectors