General Description

b-2	OPERATION	b-2

DEFINITION OF WELDING TERMS

WFS

• Wire Feed Speed

•Constant Current

•Constant Voltage

GMAW

• Gas Metal Arc welding

SMAW

•Shielded Metal Arc welding

FCAW

•Flux Core Arc Welding

General Physical Description

The LN-25™ PRO is specially engineered to be the most rugged portable wire feeder available.

Several models of the LN-25™ PRO are offered to best meet individual welder needs. The Extra Torque model features additional torque gearing for reliable feeding of large diameter FCAW wires. All of the mod- els include a gas solenoid and flow meter for the flexi- bility to run most wire processes.

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 is the 2 roll MAX- TRAC™ 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™ PRO has only two p.c. boards that are designed to be simple, reliable and easy to service.

General Functional Description

The LN-25™ PRO as designed is a simple, robust feeder. Standard features include a calibrated wire feed speed dial, 2 step/trigger interlock switch, CV-CC switch, Gas Purge and Cold Feed.

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 wire feeder.

RECOMMENDED POWER SOURCES

• CV-250	• Ranger 3 Phase
• CV-300	• Ranger 225
• CV-305	• Ranger 225 GXT
• CV-400	• Ranger 250
• CV-655	• Ranger 250 GXT
• DC-400	• Ranger 305
• DC-600	• SAE-400
• DC-655	• Pipeliner 200G
• Invertec V-350 PRO	• Classic 300
• Invertec V-450 PRO	• Vantage 300
• Multi-Weld 350	• Vantage 400
• Ranger 10,000	• Vantage 500
	• Air Vantage 500
	Big Red’s
	Eagle 10,000 Plus
	Classic’s

OPERATION

DEFINITION OF WELDING TERMS