Tweco PCM-120 Machine Torch - Manual (Page 14)

INTRODUCTION & DESCRIPTION 2-2 Manual 0-2698
B. Torch Leads Lengths
25 ft (7.6 m) or 50 ft (15.2 m)
C. Cutting Range
Most materials up to 1- 1/2 inch (38.1 mm)
D. Pierce Rating
3/4 inch (19.05 mm)
E. Transfer Distance
3/8 inch (9.5 mm)
F. Torch Ratings
Ambient
Temperature
104° F
(40° C)
Duty Cycle
100% @ 120 Amps @ 0.6 gpm
(2.3 lpm) Coolant Flow Rate
Maximum Current 120 Amps
Voltage (V
peak
) 500V
Arc Striking Voltage 12 kV
Torch Ratings
G. Torch Parts
Gas Distributor, Electrode, Tip, Shield Cup
Water Tube Extension for Gouging Only
H. Gas Supply Requirements
1. Plasma
Gases: Compressed Air, Nitrogen (N2), Argon/
Hydrogen only
Pressure: 65 psi (4.5 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.62 bar)
Cold Flow:
Cutting: 50-78 scfh (23.6-36.8 lpm)
Gouging: 85-95 scfh (40.1-44.8 lpm)
scfh = standard cubic feet per hour
NOTE
Cold flow is measured before the main arc is activated.
When pressure is set correctly, the plasma gas flow rate
is significantly lower when the arc is initiated.
2. Secondary
Gases: Compressed Air, Carbon Dioxide (CO2),
Nitrogen (N2) only
Pressure: 60 psi (4.1 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.62 bar)
Cold Flow:
Cutting: 340 scfh (160.4 lpm)
Gouging: 235 scfh (110.9 lpm)
scfh = standard cubic feet per hour
I. Plasma Power Supply Used With
• PakMaster 150XL
J. Weight
• Hand Torch
25 ft (7.6 m) Leads - 11.4 lbs (5.17 kg)
50 ft (15.2 m) Leads - 20.4 lbs (9.25 kg)
• Machine Torch
25 ft (7.6 m) Leads - 12.8 lbs (5.81 kg)
50 ft (15.2 m) Leads - 20.8 lbs (9.43 kg)