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 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.
With only one p.c. board, the LN-25™ PRO is designed to be simple, reliable and easy to service. The p.c. board is mounted with Lincoln’s leading envi- ronmental design protection by mounting the board in a plastic tray and potting it with epoxy.
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.
•When using the digital meter kit, preset voltage is accurate only with the following power sources:
Invertec V-350 | CV-305 |
Invertec V-450 | CV-400 |
DC-400 | |
DC-600 | |
DC-655 | |
| RECOMMENDED POWER SOURCES |
| • CV-250 | • Ranger 3 Phase |
| • CV-300 |
| • Ranger GXT |
| • CV-305 |
| • Ranger 250 |
| • CV-400 |
| • Ranger 305 |
| • CV-655 |
| • SAE-400 |
| • DC-400 |
| • Pipeliner 200G |
| • DC-600 |
| • Classic 300 |
| • DC-655 |
| • Vantage 300 |
| • Invertec V-350 PRO |
| • Vantage 400 |
| • Invertec V-450 PRO |
| • Vantage 500 |
| • Multi-Weld 350 |
| • Air Vantage 500 |
| • Ranger 10,000 |
| |
