Tweco PWH-M 2A - Manual (Page 13)

Specifications 1-1 Manual 0-2005
SPECIFICATIONS
1.1. DESCRIPTION OF
EQUIPMENT
The Thermal Arc 2A Plasma Welding Torch is designed
for direct current plasma arc welding of ferrous and
non-ferrous metals, including aluminum, using the
transferred arc plasma process. It is used as part of a
welding system that includes a control console, a di-
rect current power source, a coolant supply and a gas
supply (Figure 1-A).
Figure 1-A Plasma Welding System
Primary Power
D.C. Power Supply
Power Supply Control
Torch Work
Plasma Welding Console Control Switch
Plasma Gas
Shield Gas
Coolant Recirculator
1.2. SPECIFICATIONS
• Straight Polarity Current Rating: 75 amperes DC
maximum.
• Plasma Gas: Argon (Consumption: 0.5-2.5 SCFH
(0.24-1.18 1pm).
• Shield Gas Straight Polarity: Argon or Argon/
Hydrogen (Consumption: 8-15 SCFH (3.8-7.1
1pm).
• Shipping Weight: Hand torch: PWH-2A- 1 lbs.
(0.45 kg); machine mounted torch PWM-2A – 2
lbs. (0.9 kg).
• Cooling Requirements: 2,000 BTU/hr; 114 gpm
of TDC Torch Coolant @ 50 psi.