Definition Of Welding Terms; General Description - Lincoln Electric RED-D-ARC LN-25 PRO EXTREME Operator's Manual

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DEFINITION OF WELDING TERMS

WFS
• Wire Feed Speed
CC
• Constant Current
CV
• Constant Voltage
GMAW
• Gas Metal Arc welding
SMAW
• Shielded Metal Arc welding
FCAW
• Flux Core Arc Welding

GENERAL DESCRIPTION

General Physical Description
The LN-25™ PRO EXTREME is specially engineered
to be the most rugged portable wire feeder available.
The plastic case is molded from a high impact, flame
retardant plastic for durability and low weight. The
patent pending design keeps the internal components
protected and dry.
The heart of the LN-25™ PRO EXTREME is the 2
roll MAXTRAC™ drive. The patented features on the
wire drive offer tool-less changing of the drive rolls
and wire guides for quick spool changes. A tachome-
ter controlled motor powers the patent pending drive
rolls for smooth, steady feeding without slippage.
The LN-25™ PRO EXTREME is designed to be sim-
ple, reliable and easy to service. The Control P.C.
board is mounted with Lincoln's leading environmental
design protection by mounting the board in a plastic
tray and potting it with epoxy.
With a 450 amp, 60% duty cycle rating, this feeder is
ready for heavy duty welding.
General Functional Description
The LN-25™ PRO EXTREME as designed is a sim-
ple, robust feeder. Standard features include a cali-
brated wire feed speed dial, CV-CC switch, Gas
Purge and Cold Feed.
OPERATION
RECOMMENDED PROCESSES
• GMAW
• FCAW
PROCESS LIMITATIONS
• GMAW-P procedures must be qualified by the cus-
tomer.
• Across-the-Arc models are not recommended for
stitch or spot welding.
EQUIPMENT LIMITATIONS
• The duty cycle of the wire feeder is 325A, 100% and
450A, 60%. Duty cycle is based upon the amount of
welding performed in a 10 minute period.
• The maximum spool size is 45 lb, 12" diameter.
• Maximum FCAW gun length is 15 ft.
• Maximum GMAW gun length is 25 ft.
• Push-pull guns do not work with the LN-25™ PRO
EXTREME.
RECOMMENDED POWER SOURCES
• CV-305
• CV-400
• CV-655
• DC-400
• DC-600
• DC-655
• Invertec® V-350 PRO
• Invertec® V-450 PRO
• Multi-Weld® 350
• Ranger® 10,000
RED-D-ARC LN-25™ PRO EXTREME
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• Ranger 3 Phase
®
• Ranger GXT
®
• Ranger 250
®
• Ranger 305
®
• SAE-400
• Pipeliner 200G
®
• Classic 300
®
• Vantage 300
®
• Vantage 400
®
• Vantage 500
®