Section 3 − Introduction; Specifications; Duty Cycle And Overheating - Miller Electric OM-227 398D Owner's Manual

3-1. Specifications

Model Welding Output Range
XR-Aluma-Pro Gun 300 A at 100% Duty Cycle
(Air Cooled) with 15, 25 or 35 ft
(4.6 or 7.6 m) gun
XR-Aluma-Pro Gun 400 A at 100% Duty Cycle
(Water Cooled) with 15, 25 or 35 ft
(4.6 or 7.6 m) gun
.
When changing 1/16 in (1.6 mm) wire, kit 230708 must be installed.

3-2. Duty Cycle And Overheating

100% Duty Cycle At 300 Peak Amperage Using 100% Argon Gas w/15, 25 Or 35 Foot Guns
100% Duty Cycle At 400 Peak Amperage Using 100% Argon Gas w/15, 25 Or 35 Foot Guns
SECTION 3 − INTRODUCTION
Air-Cooled Models
Continuous Welding
Water-Cooled Models
Continuous Welding
Electrode Wire Feed
Wire Diameter Speed Range
Capacity
.030 To 1/16 in 70 To 900 ipm
(0.8 To 1.6 mm) (1.8 To 23 mpm)
aluminum wire
.030 To 1/16 in 70 To 900 ipm
(0.8 To 1.6 mm) (1.8 To 23 mpm)
aluminum wire
Net Weight
(Torch Only)
2.5 lb (1.1 kg)
(less cables)
2.9 lb (1.3 kg)
(less cables)
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
sduty1 5/95
OM-227 398 Page 5