Tweco Max 300 w-Merlin 6000GST - Manual (Page 16)

INTRODUCTION 2-2 Manual 0-2642
4. Cutting Range
• Production cutting:
3/4 inch (19 mm) at 150A
1 inch (25.4 mm) at 300A
• Maximum capacity when edge starting:
2 inch (50.8 mm)
5. Pierce Rating
3/4 inch (19 mm) at 150A
1 inch (25.4 mm) at 300A
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(ArH2)
b. Pressure: 75 to 100 psi (5.2 to 6.9 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.6 bar)
c. Cold Flow
Cutting: 60 to 135 scfh (28.3 to 64.6 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 Di-
oxide (CO
2
) or Nitrogen (N2)
b. Pressure: 15 to 80 psi (1.0 to 5.5 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.6 bar)
c. Flow
Cutting: 15 to 400 scfh (7.1 to 189 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: 3 - 9 gph (13 - 40 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. Preflow Gas Requirements
a. Preflow Gas: Nitrogen is the only recom-
mended preflow gas
b. Pressure: 90 to 115 psi (6.2 to 7.9 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.6 bar)
c. Flow
Cutting: 42-85 scfh (19.8 to 40.1 lpm)
scfh = standard cubic feet per hour
12. Weight (without leads)
2.0 lb (0.91 kg)
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).