Lincoln Electric Power Mig 350Mp Users Manual Wire Feeder/Welders

350MP to the manual 055b101f-7166-4e2b-aa08-e03a5316dc68

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Power MIG 350MP

WIRE FEEDER/WELDERS

®

Output

CC
CV

DC

Power MIG®. The Professional’s Choice .
SM

When you need more than just a MIG machine, the Power MIG® 350MP is
the choice for you. Lincoln
Chopper Technology® delivers more welding
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!

Input

1
PHASE

60
Hz

Processes
Stick, TIG, MIG, Pulsed, Flux-Cored

Advantage Lincoln
Arc Performance:

Superb Quality:

• Lincoln
Chopper Technology® delivers high quality welds by
increasing the control over the welding arc.

• 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.

• Multi-Process capable — Welds MIG, flux-cored, stick, TIG,
pulsed MIG, and advanced processes like Pulse-On-Pulse™ and
Power Mode®.
• Pulse-on-Pulse™ improves cleaning action when welding aluminum
and delivers a TIG-like appearance to the weld beads.
• Power Mode® maintains a stable, smooth arc for short arc welding
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.

• Three-year warranty on parts and labor (90 days warranty on gun).
Professional Features:
• Push-Pull or Spool Gun Ready — The Power MIG® 350MP has the
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.

TECHNICAL SPECIFICATIONS

Product
Name

Product
Number

Power MIG® 350MP
Push-Pull
One-Pak® Model

K2451-2

®

Power MIG 350MP
Push Model

K2403-1

Input Power

Rated Output
Current/Voltage/Duty Cycle

208/230/460/575/1/60

300A/32V/60%(1)

Input Current @
Rated Output

76/64/37/29A

Output Range
5-350 Amps
50-700 ipm WFS
(1.3-17.7 m/min)
Max. OCV 67V

Dimensions
HxWxD
inches (mm)

Net Weight
lbs.(kg)

31.8 x 18.9 x 38.8
(808 x 480 x 985)

255
(116)

(1) 40% on 208V input.

Publication E7.57 9/07
Web Update 9/08
www.lincolnelectric.com

A CLOSER LOOK

Push-Pull Gun Ready

TIG

ARC PERFORMANCE
Multi-Process/Multi-Feed Capability
One machine does it all!
Stick
TIG
MIG
Pulsed
Flux-Cored
Spool Gun
Push-Pull

Advanced Nextweld® Processes
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
• Standard Push Gun
• Spool Gun
• Push-Pull
No PC board add-ons required.

Spool Gun
Ready
MIG/Cored
Push Gun

Stick

Expandability
Load in updated or additional welding waveforms as
your needs expand to other materials. Built-in D-shell
computer connector makes upgrades easy.

What is Nextweld ®?
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.

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® for
extremely fast response for
smoother output control.

Chopper Technology®
CV-Wire Mode

Traditional weld control is more
variable around the desired
output.

[2]

Traditional Reactor Technology
CV-Wire Mode

Power MIG ® 350MP
www.lincolnelectric.com

A CLOSER LOOK

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™ uses a sequence of varying pulse wave shapes to produce
a TIG-like bead appearance and excellent weld properties when MIG welding
aluminum. Pulse-On-Pulse™ controls arc length and heat input together, making
it easier to achieve good penetration.
For more information see Nextweld ® Document NX-2.10

Pulse-On-Pulse™ on 3 mm Aluminum

Power Mode® uses high-speed regulation of output
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.

Power Mode reduces spatter and
improves bead appearance,
even for low voltage
procedures on stainless.

Power Mode aids bead
wetting and penetration
on aluminum.

For more information see Nextweld ® Document NX-2.60

WELDING CURRENT

PULSE FREQUENCY
Peak

Ramp Up

Pulsed MIG varies weld current between peak (high heat)
Tail Out

Background

Step Off

TIME

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

Low Heat
(Background)

High Heat
(Peak)

Synergic MIG

2. Voltage is automatically set.

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.
1. Use one
knob to set
procedures.

[3]

Power MIG ® 350MP
www.lincolnelectric.com

A CLOSER LOOK

FEATURES

Compare These Innovations – Make the Professional’s Choice !
SM

115 Volt AC Auxiliary Power

Additional Gas Solenoid – connect
2-piece TIG torch or control gas flow
to a spool gun.

Extra Length 15 ft. (4.5 m) gun

Handy MIG gun expendables chart

Built-in gun holder
conveniently stores
welding gun.

Accessible Wire Compartment

Easy Load Gas Cylinder Platform

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

Professional Heavy Duty Wire Drive System

Internal tachometer feedback drive system
allows you to maintain constant wire feed
speed for consistent welds.

Wide idler arm
hinge provides
improved drive
roll clamping
pressure.

Split guides support the wire through the entire
drive system to minimize feeding problems.

Input bushing
protects the wire
from damage.

Reliable brass-to-brass gun receiver bushings provide
connectivity to Magnum or competitive guns. Easier
interchangeability, better mechanical support and
electrical current transfer.

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

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

DRIVE ROLL KITS
Wire Size

Order Number

.023"-.030" (0.6-0.8 mm)
.035" (0.9 mm)
.035/.045 Combination
.040" (1.0 mm)
.045" (1.2 mm)

KP1696-030S
KP1696-035S
KP1696-1(1)
KP1696-2
KP1696-045S

Cored

.035" (0.9 mm)
.045" (1.2 mm)

KP1697-035C
KP1697-045C

Aluminum

.035" (0.9 mm)
3/64" (1.2 mm)

KP1695-035A
KP1695-3/64A(2)(3)

Solid

Lockable Storage Compartment
with Tool Tray

Removable outer
wire guide for
easy access.

(1) Included with K2403-1 Push model and K2451-2 Push-Pull One-Pak® model.
(2) Included in the K2153-1 Aluminum Feeding Kit.
(3) Included with K2451-2 Push-Pull One-Pak® model.

[4]

Power MIG ® 350MP
www.lincolnelectric.com

A CLOSER LOOK

FEATURES, CON’T.
Key Controls
Easy to use controls for high productivity and accurate settings.
A. Continuous WFS/Amps Control – In wire feed welding, adjusts
wire feed speed. In stick or TIG modes, adjusts amperage.
B. Continuous Volts/Trim Control – Adjusts voltage when MIG
welding. Adjusts the arc length (trim) when Pulse-MIG welding.

A
B

Professional’s Choice – weld with traditional manual control or take
advantage of the included MSP3 digital panel for high tech weld
features:
1. Weld Mode – Many synergic modes to select from for simple
one-knob control.

1-9

2. Preflow – Adjustable timer to initiate gas flow before the arc.
1

3. Post-Flow – Further protect your weld integrity by automatically
setting the gas to run a few seconds after the trigger is released.
4. Run-In – Adjustable speed at which wire strikes the plate to
enhance starting.
5. Start Procedure – Set start procedure, wire feed speed and volts
for an adjustable starting time.
6. Arc Control – Set arc control to crisp or soft depending on your
preference and application. In pulsed MIG, this control varies
the pulse frequency and background current. In Stick mode, it
adjusts the arc force.

8. Burnback – Adjustable time delay between turning off the arc
and the wire feed to prevent wire sticking to the puddle.

7. Crater Control – Adjusts the ending weld procedure and ramp
down time.

9. Spot Timer – Adjustable arc time for repetitive tack and spot
welds.

3 Ways To Feed Aluminum

Good

Better

Best

Push Gun

Spool Gun

Push-Pull Gun

Good for occasional
aluminum work

Better feeding with
integrated 2 lb. spools

Best performance for production
aluminum welding - Use larger spools.

Python®-Plus Air-Cooled Push-Pull Guns
Features the same Magnum® back end as the Magnum® 300 gun,
eliminating the need for the K2154-1 adapter. Effortless, fast
changes between Magnum® 300 MIG gun and Python®-Plus
push-pull gun.
• 15 ft. (4.5 m) Order K2447-1
• 25 ft. (7.6 m) Order K2447-2
• 50 ft. (15.2 m) Order K2447-3

(Note: Standard air-cooled and water-cooled Python®, CobraMax™ and
Prince® XL push-pull guns still require the K2154-1 connection kit.)

Base Unit Includes:
Push Model (K2403-1): Power MIG® 350MP, Magnum® 300 Gun 15 ft. (4.5 m), .035" (0.9 mm)/.045" (1.2 mm) Drive Rolls and Guide for Steel,
Regulator and Hose, Work Clamp and Cable, 230V Input Cord and Plug.
Push-Pull One-Pak® Model (K2451-2): Includes Power MIG® 350MP (K2403-1) push model, Python®-Plus push-pull gun 25 ft. (K2447-2), 3/64
Aluminum Drive Roll Kit (KP1695-3/64A).

[5]

Power MIG ® 350MP
www.lincolnelectric.com

RECOMMENDED OPTIONS

GENERAL OPTIONS
Parts Kits
Magnum® Parts Kits provide all
the torch accessories you need to
start welding. Parts kits provide
collets, collet bodies, a back cap,
alumina nozzles and tungstens in
a variety of sizes, all packaged in
an easy to carry reclosable box.
Order KP508 for PTA-17
Order KP509 for PTA-26

Dual Cylinder Mounting Kit
Permits side-by-side mounting of
two full size gas cylinders, with
easy loading. Attaches easily to
Power MIG undercarriage.
Order K1702-1

Canvas Cover
Protect your Power MIG® when not
in use. Made from attractive red
canvas that is flame retardant,
mildew resistant and water repellent. Fits any Power MIG® machine
with or without a gas cylinder in
the cylinder rack. Will not fit if
spool gun holder is attached to the
machine.
Order K2378-1

Foot Amptrol®
Provides 25 ft. (7.6 m) of remote
current control for TIG welding.
(6-pin plug connection).
Order K870

Hand Amptrol®
Provides 25 ft. (7.6 m) of remote
current control for TIG welding.
(6-pin plug connection)
Order K963-3

STICK OPTIONS
Accessory Kit
Complete kit for stick
welding. Includes 30 ft. (9.1 m)
electrode cable, 25 ft. (7.6 m)
work cable, headshield,
work clamp and electrode
holder.
Order K875 for 150 amps
Order K704 for 400 amps

Arc Start Switch
Needed if an Amptrol® is not used
when TIG welding. Comes with a
25 ft. (7.6 m) cable. Attaches to
the TIG torch for convenient finger
control.
Order K814

Cut Length Consumables
TIG welding filler metals are available for welding stainless steel,
mild steel, aluminum and copper
alloys.
See publication C9.10

Remote Output Control
Consists of a control box with
choice of two cable lengths.
Permits remote adjustment of
output.
Order K857 for 25 ft. (7.6 m)
Order K857-1 for 100 ft. (30.5 m)

TIG OPTIONS

WIRE FEEDER OPTIONS

PTA-17 150 Amp Air-Cooled
TIG Torch
Order K1782-2
for 12.5 ft. (3.8 m) length, 2-cable
Order K1782-4
for 25 ft. (7.6 m) length, 2-cable

Aluminum Feeding Kit
Conversion kit for welding with
3/64" (1.2 mm) aluminum wire.
Includes drive rolls, contact tips
(qty. 2), polished wire guides and
cable liner.
Order K2153-1

PTA-26 200 Amp Air-Cooled
TIG Torch
Order K1783-2
for 12.5 ft. (3.8 m) length, 2-cable
Order K1783-4
for 25 ft. (7.6 m) length, 2-cable

Fast-Mate™ Adapter
Allows guns with a Fast-Mate™
type back end to plug into a
Power MIG®.
Order K489-8

[6]

Power MIG ® 350MP
www.lincolnelectric.com

RECOMMENDED OPTIONS

Dual Procedure Switch
Easily mounts to gun using
convenient velcro straps to allow
welding operators to select
between two preset welding
procedures or modes. Plugs into
the gun trigger connector on the
wire feeder.
Order K2449-1

Prince® XL Push-Pull Gun
The Prince® XL is the smallest,
lightest pistol grip push-pull gun
you can buy. Choose the standard
straight barrel or optional curved
barrel with ratings up to 225 amps
100% duty cycle. The patented
EZ-Lock system make rotating or
changing the barrel an easy notool twist of the wrist.
Order K2296-2
for Air-Cooled 25 ft. (7.6 m)

Magnum® 250LX™ Spool Gun
280 amps, 60% duty cycle. Feeds
.025"-3/64" (0.6-1.2 mm) diameter
aluminum wire on 2 lb. (0.9 kg)
spools. With remote wire feed
speed control. 25 ft. (7.6 m) cable.
Order K2490-1

Push-Pull Gun Connection Kit
Required for aluminum welding
with the Prince® XL, Python®* and
CobraMax™ air or water-cooled
push-pull guns. Includes power
block, gun bushing, gas hose
adapter, gun gas bypass valve
(required for Prince® XL Gun only),
and wire reel brake limiter.
Requires aluminum drive roll kit.
*Not required for Python®-Plus
Guns.
Order K2154-1

Magnum® 250LX™ Spool Gun
Control Cable Extension
Extend your spool gun reach with
a 25 ft. (7.6 m) Control Cable
Extension. Features a 7-pin
female MS-type connector on the
spool gun end and a 7-pin male
MS-type connector on the power
source end.
Order K2519-1

Spindle Adapter for
Small Spools
Permits 8" (200 mm) O.D. spools
to be mounted on 2" (51 mm)
O.D. spindles.
Order K468

Spool Gun Holder
Provides neat storage of spool
gun cable, and gas hose on
Power MIG.
Order K1738-1

Welding Fume Extractors
Lincoln offers a wide variety
of welding fume extraction
environmental system solutions,
ranging from portable systems
easily wheeled around the shop
to shop-wide central systems
servicing many dedicated welding
stations.
Request Publication E13.40

Python®-Plus Air-Cooled
Push-Pull Gun
The Python®-Plus push-pull gun
features the same great performance and ergonomics as the standard Python® gun but features a
Magnum® style back end for easy
connection to a Lincoln® Power
MIG® without an adapter. The
ergonomic handle design, fingertip controls and foolproof set-up
make the Python® the most
advanced gooseneck gun on the
market. The Python®-Plus gun
with standard air-cooled barrel is
rated 200A @100% duty cycle,
250A @50% duty cycle.
Order K2447-1
for Air-Cooled 15 ft. (4.5 m)
Order K2447-2
for Air-Cooled 25 ft. (7.6 m)
Order K2447-3
for Air-Cooled 50 ft. (15.2 m)

[7]

Power MIG ® 350MP
www.lincolnelectric.com

POWER MIG ® 350MP ORDER FORM
PRODUCT DESCRIPTION

ORDER NUMBER

POWER MIG® 350MP PUSH MODEL 208/230/460/575/1/60
POWER MIG® 350MP PUSH-PULL ONE-PAK® MODEL

K2403-1
K2451-2

RECOMMENDED GENERAL OPTIONS
Dual Cylinder Mounting Kit
Canvas Cover

K1702-1
K2378-1

RECOMMENDED STICK OPTIONS
Accessory Kit:
150 amps
400 amps
Remote Output Control:
25 ft. (7.6 m)
100 ft. (15.2 m)

QUANTITY

PRICE

K875
K704
K857
K857-1

RECOMMENDED TIG OPTIONS
Pro-Torch™ TIG Torches
Part Kits:
For PTA-17
For PTA-26
Foot Amptrol®
Hand Amptrol®
Arc Start Switch
Cut Length Consumables

See publication E12.150
KP508
KP509
K870
K963-3
K814
See publication C9.10

RECOMMENDED WIRE FEEDER OPTIONS
Aluminum Feeding Kit
Fast-Mate™ Adapter
Dual Procedure Switch
Magnum® 250LX™ Spool Gun
Spool Gun Holder
Python®-Plus Air-Cooled Push-Pull Gun
15 ft. (4.5 m)
25 ft. (7.6 m)
50 ft. (15.2 m)
Prince® XL Push-Pull Gun Air-cooled, 25 ft. (7.6 m)
Push-Pull Gun Connection Kit
Spindle Adapter for Small Spools
Welding Fume Extractors

K2153-1
K489-8
K2449-1
K2490-1
K1738-1
K2447-1
K2447-2
K2447-3
K2296-2
K2154-1
K468
See publication E13.40
TOTAL:

C U S T O M E R A S S I S TA N C E P O L I C Y
The business of The Lincoln Electric Company® is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of
our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for information or advice about their use of our products. Our employees respond to
inquiries to the best of their ability based on information provided to them by the customers and the knowledge they may have concerning the application. Our employees, however, are not
in a position to verify the information provided or to evaluate the engineering requirements for the particular weldment. Accordingly, Lincoln Electric does not warrant or guarantee or assume
any liability with respect to such information or advice. Moreover, the provision of such information or advice does not create, expand, or alter any warranty on our products. Any express or
implied warranty that might arise from the information or advice, including any implied warranty of merchantability or any warranty of fitness for any customers’ particular purpose is
specifically disclaimed.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of the
customer. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements.
Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.

T H E L I N C O L N E L E C T R I C C O M PA N Y ®
22801 St. Clair Ave., Cleveland, OH 44117-1199 • 216.481.8100 • www.lincolnelectric.com



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Keywords                        : E7.57; MIG welder; MIG welding; flux-cored welding; stick welder; stick welding; TIG welder; TIG welding; multi-process welder; Chopper Technology; Power Mode; Pulse-on-Pulse; push-pull gun; spool gun
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Format                          : application/pdf
Title                           : Wire Feeder/Welders: Power MIG 350MP
Description                     : When you want the flexibility of more than just a MIG machine, the new Power MIG 350MP is the choice for you.  The Power MIG 350MP has more welding processes than just MIG or flux-cored. It also welds excellent in stick and TIG.
Subject                         : E7.57, MIG welder, MIG welding, flux-cored welding, stick welder, stick welding, TIG welder, TIG welding, multi-process welder, Chopper Technology, Power Mode, Pulse-on-Pulse, push-pull gun, spool gun
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