Lincoln Electric LF-72 Manual Do Utilizador

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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