Miller C-40 Owner's Manual - Page 7
Browse online or download pdf Owner's Manual for Welding System Miller C-40. Miller C-40 20 pages. Semi-automatic, air-cooled, mig (gmaw) welding gun
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2-1. Specifications
Ref. ST-800 797-C
2-2. Duty Cycle And Overheating
Overheating
SECTION 2 – INSTALLATION
Air-Cooled Guns For GMAW Welding
Note: Using mixed gases other than CO
C-30 Gun Feeds .023 To 5/64 in (0.6 To 2.0 mm) Wire
Duty Cycle Rating:
100%: 300 A With CO
Weight With 15 Ft (Heaviest) Power Cable: 7.5 lb (3.4 kg)
Maximum Recommended Wire Size – 5/64 in
C-40 Gun Feeds .023 To 5/64 in (0.6 To 2.0 mm) Wire
Duty Cycle Rating:
100%: 400 A With CO
Weight With 15 Ft (Heaviest) Power Cable: 10.3 lb (4.7 kg)
Maximum Recommended Wire Size – 5/64 in
C-50 Gun Feeds .023 To 1/8 in (0.6 To 3.2 mm) Wire
Duty Cycle Rating:
100%: 500 A With CO
Weight With 15 Ft (Heaviest) Power Cable: 13 lb (5.9 kg)
Maximum Recommended Wire Size – 1/8 in
C-60 Gun Feeds .023 To 1/8 in (0.6 To 3.2 mm) Wire
Duty Cycle Rating:
100%: 600 A With CO
Weight With 15 Ft (Heaviest) Power Cable: 14.5 lb (6.6 kg)
Maximum Recommended Wire Size – 1/8 in
100% Duty Cycle At Following Amperes:
C-30 Gun: 300 A With CO
Shielding Gas
2
C-40 Gun: 400 A With CO
Shielding Gas
2
C-50 Gun: 500 A With CO
Shielding Gas
2
C-60 Gun: 600 A With CO
Shielding Gas
2
Continuous Welding
0
Minutes
reduces duty cycle ratings by 10-50%.
2
Shielding Gas
2
Shielding Gas
2
Shielding Gas
2
Shielding Gas
2
15
Reduce Duty Cycle
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
Using mixed gases other than CO
reduces duty cycle ratings 10–50%
depending on gas mixture and
welding parameters.
Y Exceeding duty cycle can
damage
unit
warranty.
A or V
OR
OM-199 706 Page 3
2
and
void
sduty1 5/95