Lincoln Electric Power MIG 350MP User Manual

WIRE FEEDER/WELDERS

PHASE

Power MIG®350MP

Power MIG®. The Professional’s ChoiceSM.

When you need more than just a MIG machine, the Power MIG®350MP is the choice for you. Lincoln Chopper Technology processes—MIG and flux-cored, along with excellent stick welding, TIG and advanced processes such as Power Mode

™

and Pulse-on-Pulse®. In addition, future waveforms of special or improved welding processes can be downloaded into the Power MIG, making it expandable. This means the welder you buy today won’t be obsolete tomorrow. Factor in the simplicity and sophistication of synergic control, and you’ll agree—no other power source in this category offers so much!

Processes

Stick, TIG, MIG, Pulsed, Flux-Cored

Advantage Lincoln

Arc Performance:

• Lincoln Chopper Technology®delivers high quality welds by

increasing the control over the welding arc.

• Multi-Process capable — Welds MIG, flux-cored, stick, TIG,

pulsed MIG, and advanced processes like Pulse-On-Pulse Power Mode

• Pulse-on-Pulse™improves cleaning action when welding aluminum

and delivers a TIG-like appearance to the weld beads.

• Power Mode

on thin material – great arc length control for aluminum welding.

• Synergic control of voltage with wire feed speed allows you

to set weld procedures with only one control for simplicity.

maintains a stable, smooth arc for short arc welding

delivers more welding

™

and

Superb Quality:

• Rugged 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).

Professional Features:

• Push-Pull or Spool Gun Ready — The Power MIG

electronics built-in to drive either a spool gun or push-pull gun giving you more ways to feed aluminum.

• 115V auxiliary receptacle to power a grinder or other auxiliary

equipment in your work area.

• A second gas solenoid is built-in for spool gun use or TIG welding.

• Dual Procedure capable — Easily select between either two welding

procedures or two welding modes.

Output

Input

350MP has the

TECHNICAL SPECIFICATIONS

Product Product Rated Output Input Current @ H x W x D Net Weight

Name Number Input Power Current/Voltage/Duty Cycle Rated Output Output Range inches (mm) lbs.(kg)

Power MIG

One-Pak

Power MIG

(1)

40% on 208V input.

350MP

Push-Pull K2451-2 5-350 Amps

Model 50-700 ipm WFS 31.8 x 18.9 x 38.8 255

350MP K2403-1 Max. OCV 67V

Push Model

208/230/460/575/1/60 300A/32V/60%

(1)

76/64/37/29A (1.3-17.7 m/min) (808 x 480 x 985) (116)

Dimensions

Publication E7.57 9/07

Web Update 9/08

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A CLOSER LOOK

Push-Pull Gun Ready

ARC PERFORMANCE

Multi-Process/Multi-Feed Capability

One machine does it all! Stick

Flux-Cored Spool Gun Push-Pull

Advanced Nextweld

Innovations like Pulse-On-Pulse™and Power Mode

are designed to address specific or difficult

applications, including aluminum and

low amperage short arc welding.

3 Ways To Feed Aluminum

No PC board add-ons required.

Load in updated or additional welding waveforms as

your needs expand to other materials. Built-in D-shell

computer connector makes upgrades easy.

Processes

• Standard Push Gun

• Spool Gun

• Push-Pull

Expandability

MIG

Pulsed

TIG

Spool Gun Ready

MIG/Cored Push Gun

TIG

Stick

What is Nextweld®?

Nextweld®integrates Lincoln’s technologies, processes and products to create a comprehensive, flexible, user-friendly welding system that can increase efficiency and reduce fabrication costs. Waveform Control Technology®and digital

Lincoln Chopper Technology

Provides a smooth, stable arc with easy starts, low spatter and excellent bead appearance.

Chopper Technology extremely fast response for smoother output control.

for

Chopper Technology

CV-Wire Mode

communications provide the foundation for Nextweld

innovations like Pulse-On-Pulse™, Power Mode®. Look for Nextweld®products for ultimate arc control, high efficiency/reliability and seamless system integration.

Traditional weld control is more variable around the desired output.

Traditional Reactor Technology CV-Wire Mode

Power MIG®350MP

[2]

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A CLOSER LOOK

TIME

WELDING CURRENT

Background

Peak

Ramp Up

Tail Out

Step Off

PULSE FREQUENCY

Low Heat

(Background)

High Heat

(Peak)

ARC PERFORMANCE, CON’T.

Lincoln Nextweld®Innovations for Challenging Applications

Waveform Control Technology®makes it possible to take advantage of Lincoln innovations like these patented processes using the Power MIG

350MP power source:

Pulse-On-Pulse

a TIG-like bead appearance and excellent weld properties when MIG welding aluminum. Pulse-On-Pulse it easier to achieve good penetration.

For more information see Nextweld

Pulse-On-Pulse™on 3 mm Aluminum

Power Mode

power to deliver extremely fast response to changes in the arc, for example, when using a whip technique. The result is improved MIG welding performance, including low spatter, very uniform, consistent bead wetting and controlled penetration. Power Mode benefits are especially apparent on low voltage applications on thin steel and stainless steel material less than 20 gauge (0.7 mm). It also delivers excellent arc characteristics on aluminum and other alloys such as silicon bronze and nickel alloys.

For more information see Nextweld®Document NX-2.60

uses high-speed regulation of output

™

uses a sequence of varying pulse wave shapes to produce

™

controls arc length and heat input together, making

Document NX-2.10

Power Mode reduces spatter and

improves bead appearance,

even for low voltage

procedures on stainless.

Power Mode aids bead

wetting and penetration

on aluminum.

Synergic MIG

Synergic control of voltage and wire feed speed allows you to set weld procedures with only one control for simplicity and ease of use.

Set the wire feed speed and your voltage is automatically set. Override the setting with the voltage/trim control for personal preference.

[3]

Pulsed MIG varies weld current between peak (high heat)

and background (low heat) current to provide better control of heat input, which minimizes warping and burnthrough on thin materials. Pulsed MIG also enables flat, horizontal, vertical up, or overhead welding without a slag system. It can be used in hard automation, robotic, and high production semiautomatic applications. Optimized GMAW-P waveforms are readily available to use on aluminum, carbon steel, high strength low alloy steel, stainless steel, and nickel alloys.

For more information see Nextweld®Document NX-2.70

2. Voltage is automatically set.

1. Use one knob to set procedures.

Power MIG®350MP

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