How do I select the right drive rolls for the Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5?

Drive roll selection depends on wire type and diameter: use knurled (serrated) drive rolls for flux-core and metal-core wire, and V-groove (smooth) drive rolls for solid MIG wire. Common wire diameters — .023 in, .030 in, .035 in, .045 in — each require matched drive rolls. Using the wrong drive roll type can crush flux-core wire or slip on solid wire.

How do I set wire feed speed on the Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5?

Wire feed speed (WFS) is one of the primary variables controlling heat input and bead profile in MIG welding. Higher WFS increases deposition rate and amperage (in constant-voltage mode). For .035 in ER70S-6 on 1/8 in mild steel, a starting WFS of 200–350 in/min at 18–21V is a common baseline. Fine-tune to achieve a steady arc sound without spatter or porosity.

What routine maintenance does the Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5 require?

Regular wire feeder maintenance includes: clean the wire conduit/liner every 3–6 months (or when wire feed becomes erratic), replace the liner when it shows kinks or buildup that cleaning cannot clear, inspect and clean the drive rolls monthly, and check all connection points for corrosion or looseness. A consistent, clean wire path is the most important factor in stable arc performance.

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Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5

Q: What power source and gun is the Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5 compatible with?

Wire feeders are compatible with MIG guns and welding power sources that match the feeder's amperage rating and connector type. Lincoln Electric wire feeders are engineered to work with Lincoln power sources using Lincoln Magnum guns and consumables. Third-party compatibility may require adapter cables — contact us to confirm compatibility before ordering.

Q: What warranty does the Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5 carry?

The Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5 carries a 3 Years warranty. Keep your purchase receipt and register the product with Lincoln Electric for warranty service. Warranty covers manufacturing defects; consumable items such as liners, drive rolls, and contact tips are excluded.

SKU: K4267-5

$4,959.09 ~~$5,635.31~~

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LN-25X wire feeder with CrossLinc® and True Voltage Technology™ (TVT™) helps you get the job done with drastically less movement to improve safety and efficiency. This extra torque model feeds up to 3/32 in. cored wire.

Overview

Lincoln LN-25X Extra Torque with CrossLinc, TVT, No Flowmeter, Tweco K4267-5

PORTABLE INDUSTRIAL WIRE FEEDER Whether you’re working on a large structure in a shipyard, or you’re 100 feet off of the ground, your safety and efficiency should never be jeopardized. The less you have to move, the more valuable you are. We believe good equipment should never limit your capabilities, and the LN-25X wire feeder with CrossLinc and True Voltage Technology (TVT) helps you get the job done with drastically less movement. High Torque model feeds up to 3/32 in. cored wire.

Features

Maxtrac Wire Drive System – Heavy-duty cast aluminum wire drive system provides reliable feeding and durability
CrossLinc Technology – Control output at a distance with no additional cables
True Voltage Technology (TVT) – Voltage drop compensation. Get what you set
Tachometer feedback ensures accurate wire feed speed
Trigger Interlock Switch – Provides operator comfort for long welds
Replaceable and Flame Resistant Case – Protects internal components, easy to replace
Potted PC Boards – For moisture and corrosion protection

Specifications

Feature	Value
Typical Applications	Construction & Field Erection General Fabrication Heavy Equipment Heavy Fabrication Structural Fabrication
Processes	Flux-Cored (FCAW) MIG (GMAW)
Equipment Classification	Heavy Industrial
Product Height (in)	15
Product Height (mm)	381
Product Width (in)	8.7
Product Width (mm)	221
Product Length (in)	23.2
Product Length (mm)	589
Product Weight (lb)	37
Product Weight (kg)	16
Max Rating	450
Input Voltage	15-110 VDC

Includes

(1) LN-25X with TVT
(1) Tweco Style Plug on Electrode Cable

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