Lincoln Electric LF-72 - Manual

TECHNICAL SPECIFICATIONS
Wire Feed Wire Size Dimensions Net
Product Product Input Output Capacity Speed Range Range H x W x D Weight
Name (1) Number Power Current / Duty Cycle ipm (m/min) in (mm) in (mm) lbs (kg)
LF-72 Base Model K2327-1 24-42 VAC 500 Amps @ 60% 50-800 Solid Cored 11.1 x 10.2 x 12.9 44
(with gun) 50/60 Hz 400 Amps@ 100% (1.3-20.3) .023-1/16 .030-5/64 (282 x 259 x 328) (20)
9 Amps (0.6-1.6) (0.8-2.0)
LF-72 Base Model, K2327-4 27
(no gun, no cable) (12)
LF-72 Bench Model, K2327-2 12.6 x 10.9 x 22.5 53
Standard Duty (320 x 277x 572) (24)
LF-72 Bench Model, K2327-3 15.3 x 13.0 x 27.7 68
Heavy Duty (389 x 330 x 704) (31)
LF-74 Base Model K2426-1 600 Amps @ 60% 100-800 .030-5/64 11.1 x 10.2 x 12.9 46
500 Amps@ 100% (2.5-20.3) (0.8-2.0) (282 x 259 x 328) (21)
LF-74 Bench Model, K2426-2 15.3 x 13.0 x 27.7 71
Heavy Duty (389 x 330 x 704) (32)
LF-74 Bench Model, K2426-3 50-400 .030-3/32 71
Heavy Duty, Extra Torque (1.3-10.1) (0.8-2.4) (32)
Output
or
Input
Designed for MIG and cored wire welding in job shop and manufacturing
environments, the rugged LF-72 and LF-74 wire feeders are built to
deliver reliable performance day after day. The heart of these feeders
is the highly engineered 2-roll or 4-roll MAXTRAC™ wire drive
system, delivering strong and consistent feeding force for tough
applications.
Select the 2-roll LF-72 for most .035-.045 wire applications.
Select the 4-roll LF-74 for large diameter wires, longer
gun cables or long boom conduit or hard automation
applications.
Processes
MIG, Pulsed, Flux-Cored
LF-72 and LF-74 Wire Feeders
2-Roll or 4-Roll Heavy Duty Industrial Feeders
Publication E8.11 8/06
LF-74 Bench Model, Heavy Duty, Extra Torque, K2426-3
LF-72 Bench Model, Standard Duty, K2327-2
(Shown with optional wire.)
24-42
VAC
60
50
Hz
SEMIAUTOMATIC WIRE FEEDERS
• Patented MAXTRAC™ heavy-duty cast aluminum wire drive system
provides reliable feeding and durability.
• Brass-to-brass gun connections for better electrical conductivity that
results in better arc performance.
• Totally tool-less drive rolls and wire guide installation. Two or four
gear-driven wire drive rolls slide on and off easily!
• Calibrated wire feed speed dial for precise and accurate settings.
• Rugged, industrial-grade wire feeder motor.
• In addition to great mild steel performance, these feeders deliver
positive arc starting and feeding with stainless steel, aluminum and
flux-cored wires!
• Control cable connector with a Spin-Nut™ makes connecting the
control cable a simple twist-of-the-wrist.
• Totally enclosed wire drive.
• Manufactured under a quality system certified ISO 9001
requirements and ISO 14001 environmental standards.
• Three-year warranty on parts and labor.
Advantage Lincoln
•
See selection guide on page 4.
(1)
www.lincolnelectric.com