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B-2
LN-25™ IRONWORKER
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™ IRONWORKER is specially engineered
to be the most rugged portable wire feeder available
and meets the individual welder needs.
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™ IRONWORKER 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 tachometer
controlled motor powers the patent pending drive rolls
for smooth, steady feeding without slippage.
The LN-25™ IRONWORKER with a 450 amp, 60%
duty cycle rating, is ready for heavy duty welding.
General Functional Description
The LN-25™ IRONWORKER have adjustable WFS
range for improving the knob sensitivity. The low
range is great for critical welds with Innershield wires,
and the upper range is suitable for general purpose
welding. Selection of the WFS range is by a rocker
switch or through the set-up menu on meters with digi-
tal displays.
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 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.
• K2330-1 Timer Kits do not work with the feeder.
Use K2330-2 kits.
• Push-pull guns do not work with the LN-25 PRO.
• The digital displays do not show preset voltage.
• Not compatible with K489-7 Euro connector.
RECOMMENDED POWER SOURCES
• CV-305
• CV-400
• CV-655
• DC-400
• DC-600
• DC-655
• Invertec V-350
• FlexTec 450
• Multi-Weld 350
• Ranger 10,000
• Ranger 3 Phase
• Ranger 225
• Ranger 225 GXT
• Ranger 250
• Ranger 305
• SAE-400
• Pipeliner 200G
• Classic 300
• Vantage 300
• Vantage 400
• Vantage 500