Lincoln Electric POWER MIG 255XT User Manual

WIRE FEEDER/WELDERS

PHASE

POWER MIG®255XT

POWER MIG®. The Professional’s ChoiceSM.

The POWER MIG®255XT sets the standard for MIG and flux-cored welding in light industrial job shop fabrication, maintenance or repair work. Diamond Core Technology range, low spatter levels and a forgiving arc on steel, stainless and aluminum – even for demanding out-of-position work.

It’s Spool Gun Ready, so it’s fast and easy to tackle difficult aluminum applications. Exclusive 115 volt auxiliary power means you can power lights, grinders, and chargers right where you work! And, the MAXTRAC system with a patented Split Wire Guide system and tachometer feedback ensures trouble-free wire delivery. Add the extra length 15 foot gun cable and innovative convenience features and you begin to understand why the POWER MIG

Medium Duty Heavy Duty

™

delivers a wide voltage sweet spot across the welding

255XT is considered The Professional’s ChoiceSM.

Spool Gun Capable

drive

Processes

MIG, Flux-Cored

Output

Input

Advantage Lincoln

Arc Performance:

• Diamond Core Technology™, a patented choke design, delivers:

- A forgiving arc, even with large stickout changes

- Excellent out-of-position arc action

- A wide voltage sweet spot at a given wire feed speed

- Low spatter

Superb Quality:

• MAXTRAC

cast aluminum industrial wire drive features dual

driven rolls, easy-turn numeric tension indicator, brass-to-brass gun connections and Lincoln’s 100% wire-supporting split wire guide system.

• Three-year warranty on parts and labor (90 days warranty on gun).

TECHNICAL SPECIFICATIONS

Product

Name

POWER MIG

(1)

255XT

One-Pak

Spool Gun Pkg.

255XT

Base Unit

Input current is at the rated output with the 115V auxiliary receptacle also drawing 15 amps.

Product Number

K2702-1 208/230/1/60 250A/26V/40% 56/52A

K2701-1 208/230/1/60 250A/26V/40% 56/52A

K2701-2 230/460/575/1/60 50/24/19A

Input Power

Rated Output

Current/Voltage/Duty Cycle

Professional Features:

• Digital meters display, preset voltage and wire feed speed, and

actual voltage and preset wire feed speed while welding.

• Generous 15 ft. (4.5 m) gun and cable assembly makes it easy to

reach your work.

• Spool Gun Ready – The POWER MIG

second gas solenoid built-in to drive either the Magnum spool gun or the Magnum

• The most economic spool gun solution in the 250A category –

costing hundreds less.

• 115V auxiliary receptacle (208/230V model only) to power a grinder

or other auxiliary equipment in your work area.

• Free Timer Functions adds 4-step trigger interlock, spot mode,

adjustable run-in speed for smoother arc starting, and adjustable burnback time to minimize wire sticking in puddle.

Input Current @

Rated Output

(1)

SG spool gun.

(1)

Output Range

30-300 Amps 50-700 ipm WFS (1.3-17.7 m/min)

Max. OCV: 40V 31.8 x 18.9 x 38.8

30-300 Amps 50-700 ipm WFS (1.3-17.7 m/min)

Max. OCV: 40V

255XT has the electronics and

Dimensions

H x W x D

inches (mm)

(808 x 408 x 985)

250LX

Net Weight

lbs. (kg)

(100)

220

Publication E7.54 7/08

www.lincolnelectric.com

A CLOSER LOOK

PERFORMANCE

What Is It?

Diamond Core Technology™is a patented innovative choke design that filters the welding arc. It provides dynamic optimized arc filtering across the entire welding range of amperages. Other arc stabilization methods are “fixed” – or only working at certain amperages – resulting in harsh arc characteristic

Results:

• Great starts and low spatter.

• Outstanding performance on a wide variety of materials – steel, stainless and aluminum.

• A wide sweet spot for optimal arc performance.

Great For:

• Steel, stainless and aluminum.

• Out-of-position work.

• Long arc applications.

• Weaving techniques.

changes over the welding range.

PROCESS CAPABILITIES

Process Wire Polarity Gas Thickness Thickness

MIG .025", .030", .035", .045"

Mild Steel (0.6, 0.8, 0.9, 1.1 mm) DC+ 100% CO

MIG .030", .035", .045" Ar/CO Stainless (0.8, 0.9, 1.1 mm) DC+ or Tri-Mix (0.9 mm) (19.1 mm)

Blue Max

MIG 3/64" 1/16" (.063") 1/2" (.500") Aluminum (1.2 mm) DC+ 100% Argon (1.6 mm) (19.1 mm)

Flux-Cored, .035", .045" 100% CO Gas-Shielded (0.9, 1.1 mm) DC+ Ar/CO

Mild Steel Outershield

Electrode Electrode Shielding Minimum Maximum

or 24 ga. (.024") 1/2" (.500")

SuperArc SuperGlide

308LSi, 309LSi, 316LSi

SuperGlaze

4043 and 5356

71M and MC-710

L50, L-56 Ar/CO2Blend (0.6 mm) (19.1 mm)

S-3, S-6

Blend 20 ga. (.036") 1/2" (.500")

or 12 ga. (.109") 1/2" (.500")

Blend (2.7 mm) (19.1 mm)

(1)

Flux-Cored, .035", .045" 18 ga. (.050") 3/4" (.750") Self-Shielded (0.9, 1.1 mm) DC- — (1.2 mm) (12.7 mm)

Mild Steel Innershield

(1)

Lincoln Electric recommends multiple pass welds on 1/2" (12.7 mm) material. Consult the appropriate application procedures and guidelines for selecting the correct wire size, gas type and number of passes.

(2)

.035" and .045" (0.9 and 1.1 mm) NR®-211-MP is only recommended up to 5/16" (7.9 mm) thick material.

NR®-211-MP

(2)

and NR®-212

FEATURES

Energize Your Shop!

— The POWER MIG 255XT features a 115 volt auxiliary power receptacle which allows you to power grinders, lights, cordless tool chargers or any other power tools.

Battery Chargers for Cordless Tools

(1)

115V auxiliary power is only available on 208/230V models.

Saws

Grinders

Rotary Tools

Welding Fume Extraction

Work Lights

POWER MIG®255XT

[2]

www.lincolnelectric.com

A CLOSER LOOK

FEATURES CONʼT.

Compare These Innovations – Make the Professional’s ChoiceSM!

Timer Functions

Adds 4-step trigger interlock, spot mode, adjustable run-in speed for smoother arc starting, and adjustable burnback time to minimize wire sticking in puddle.

Easy Load Wire Compartment

Professional Heavy Duty Wire Drive System

Internal tachometer feedback drive

system allows you to maintain

constant wire feed speed

for consistent welds.

Split guides support the wire

through the entire drive

system to minimize

feeding problems.

Reliable brass-to-brass gun receiver

bushings provide connectivity to

Magnum

support and electrical current transfer.

or competitive guns. Easier

interchangeability, better mechanical

Easy Load Gas Cylinder Platform

Extra–Length 15 ft. (4.5 m) Gun Additional Gas Solenoid – Controls Gas

A Lockable storage compartment with tool

tray stows your welding consumables and valuable personal tools.

B Built-in gun holder conveniently stores

welding gun.

C Handy MIG Gun Expendables Chart.

Flow to a Spool Gun

Easy turn numeric tension indicator with optimized ranges for different wire types.

Wide idler arm hinge provides improved drive roll clamping pressure.

Input bushing protects the wire from damage.

Two gear driven rolls. No tools needed to swap rolls on or off.

[3]

Separate drive gear reduces pressure on motor shaft for long life.

Removable outer wire guide for easy access.

POWER MIG®255XT

www.lincolnelectric.com

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