Tweco Maximizer 300 Torch for BNFL - Manual (Page 16)

INTRODUCTION 2-2 Manual 0-2990
6. Transfer Distance
3/8 inch (10 mm)
7. Torch Parts
Gas Distributor, Electrode, Tip, Shield Cup Body,
End Cap
8. Plasma Gas Requirements
a. Plasma Gas
Compressed Air, Oxygen (O2), Nitrogen (N2),
or Argon/Hydrogen(Ar/H2)
b. Pressure
65 to 75 psi (4.5 to 5.2 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.6 bar)
c. Cold Flow
Cutting: 65 to 75 scfh (30.7 to 35.4 lpm)
scfh = standard cubic feet per hour
NOTE
Cold flow is measured before the main arc is acti-
vated. When pressure is set correctly the plasma
gas flow rate is significantly lower when the arc is
initiated.
9. Secondary Gas Requirements
a. Secondary Gas
Compressed Air, Carbon Dioxide (CO
2
) or Ni-
trogen (N2)
b. Pressure
65 to 85 psi (4.5 to 5.9 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.6 bar)
c. Flow
Cutting: 220 scfh (103 lpm)
scfh = standard cubic feet per hour
10. Secondary Water Requirements
a. Water Source (See Notes)
Clean drinking quality tap water can be used
as a secondary
b. Water Pressure
Min. 50 psi (3.5 bar)
c. Water Flow
Cutting: 6 - 8 gph (35 - 47 lph)
NOTES
Tap water should only be used as a secondary on
machine torches.
The tap water source does not need to be deionized,
but in water systems with extremely high mineral
content a water softener is recommended.
Tap water with high levels of particulate matter
must be filtered.
11. Weight (without leads)
1.0 lb (0.45 kg)
12. Power Supply Used With:
Merlin 6000
B. Torch Supply Leads
The following applies to the Torch Supply Leads only:
The Torch Supply Leads are made up of individual hoses
and cables. The Torch Supply Leads are part of the sys-
tem to interface the Master Power Supply to the Arc
Starter Box. The Torch Supply Leads are available to ex-
tend the Arc Starter Box from the Power Supply up to
125 ft (38.1 m).