Tweco A80-A120 CutMaster - Manual (Page 19)

CUTMASTER A80, A120
Manual 0-5119 INTRODUCTION
2T-1
SECTION 2 TORCH:
INTRODUCTION
2T.01 Scope of Manual
This manual contains descriptions, operating instruc-
tions and maintenance procedures for the 1Torch
Models SL100SV/Manual and SL100SV/Mechanized
Plasma Cutting Torches. Service of this equipment is
restricted to properly trained personnel; unqualified
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 operation for
which it was designed.
2T.02 General Description
Plasma torches are similar in design to the automotive
spark plug. They consist of negative and positive sec-
tions 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 super-
heated column of gas flows through the small orifice
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 secondary gas. The
air flow is divided inside the torch head. Single - gas
operation provides a smaller sized torch and inexpen-
sive 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 speci-
fications as related to the Power Supply used.
2T.03 Specifications
A. Torch Configurations
1. Automation Torch, Model
The standard automation torch has a positioning
tube with rack & pinch block assembly and a
solenoid valve.
Art # A-07402_AC
1.75" /
44.5 mm
1.375" / 35 mm
18.875" / 479 mm
0.625" /
16 mm
4.95" / 126 mm 1.175" / 30 mm
12.285" / 312 mm
2.875” /
73 mm
2. Machine 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 han-
dle. 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
C. Torch Parts
Starter Cartridge, Electrode, Tip, Shield Cup
D. Parts - In - Place (PIP)
Torch Head has built - in switch
12 VDC circuit rating