Lincoln Electric 350 User Manual
Multi-Weld
TM
350
Distribution Box, Welding Cable Connectors, Input Cables, Remote
Output Control, Undercarriage
K1735-1 Multi-Weld 350
SAE-400, Vantage 500, DC-655, DC-1000, DC-1500
• Independent arcs. Starting or stopping one Multi-Weld doesn’t
affect the welding of the others.
• The Multi-Weld 350 is capable of continuous operation at 350
amps in 122°F (50°C) air temperature.
• No control cables are needed. Single weld cable output from the
power source to one or several Multi-Weld 350s.
• Controls are located close to the operator for quick access.
• High efficiency design uses less than half the power of other
grid systems.
• Lincoln Chopper Technology™ for quality welds with
instant control of the arc for superior welding results.
• Constant voltage (CV) for MIG or flux-cored wire welding.
• Constant current (CC) for stick welding or arc gouging.
• Additional stick welding controls include hot start, arc force,
electrode type selection (E7018 and E6010).
•Arc gouging capability with a single Multi-Weld 350 and up to
5/16" (8.0mm) electrode, or with paralleled units for up to 700
amps of power using a 3/8" (9.5mm) electrode.
• Manufactured under a quality system certified to ISO 9001
requirements and ISO 14001 environmental standards.
• Three-year warranty on parts and labor.
MULTI-OPERATOR
Connect Several DC+ Welders to One Power Supply.
Stick MIG Flux-Cored Gouging
Processes (DC+ Processes Only)
Description
Output Input
80
VDC
Advantage Lincoln
Recommended General Options
Recommended Power Source Options
LN-15 Across-the-Arc, LN-25 Across-the-Arc
Recommended Wire Feeder Options
Order
The Multi-Weld 350 is a 350 amp, DC+, 100% duty cycle welder capable of
CV-wire, CC-stick or arc gouging. With its high efficiency, the Multi-Weld 350
offers an entirely new and better way to build large structures. This unique
system offers a cleaner, safer job site, and allows operators to have high
performance welding control right where they need it — at the arc.
Publication E5.302 3/05
Web Update 6/05
www.lincolnelectric.com
TECHNICAL SPECIFICATIONS
Input Current Dimensions Net
Product Product Input Rated DC+ Output at Rated DC Output H x W x D Weight
Name Number Volts Current/Voltage/Duty Cycle Output (80V DC) Range in. (mm) lbs. (kg)
80V DC 15 - 40 Volts
Multi-Weld K1735-1 (50 - 113 350A / 34V / 100% DC
+ 165A 30 - 350 Amps 11.6 x 10 x 21.5 59
350 Peak Range) Max. OCV: 78V (295 x 254 x 546) (27)
[2][2]
13
4
5
6
7
8
9
10
11
12
2
Access Door Removed for Clarity
A CLOSER LOOK
1) Large, Easy to Read, Presettable Digital Amp Meter
2) Off/CC/CV Switch
3) Large, Easy to Read, Presettable Digital Volt Meter
4) Input Voltage OK Light
5) Large Control Knob for Gloved Hands
6) Remote Control Connection
7) Optimized Arc Switch for E7018 or E6010 Type Electrodes
8) “Pig Tail” Cables for Custom Quick Connectors. Front
and rear routings.
9) 10 ft. (3m) Work Clamp Lead
10) Arc Force Control
11) Hot Start Control For Fast and Easy Starts
12) Thermal Protection Trip Indicator Light
Multi-Weld 350
www.lincolnelectric.com
Key Controls
A single weld cable output from the power source to a distribution
box connects several work stations equipped with Multi-Weld 350s.
SUPERIOR WELDING PERFORMANCE
• Superior starting compliments the soft, stable welding arc
yielding very low spatter levels. Chopper control has an
extremely fast response for tighter output control than
tradition weld control.
• High efficient design and low input current draw means
more welding.
Patented and award-winning Lincoln Chopper Technology delivers superior DC arc welding performance for general purpose stick,
Downhill Pipe, DC TIG, MIG, cored-wire and arc gouging.
Benefits of Chopper Technology include: - Easy arc starting
- Smooth arc action
- Low spatter levels
- Excellent bead appearance
Traditional weld control is
more variable around the
desired output.
Chopper Technology
for extremely fast response
for smoother output control.
Chopper Technology
CV-Wire Mode
Traditional Reactor
Technology
CV-Wire Mode
• Each Multi-Weld 350 has easy-to-use controls and a large control
knob designed for gloved hands.
• Digital meters show preset values before welding and actual
values while welding. Memory holds the values for 5 seconds
after welding stops.
• Convenient carrying handles and skids double as extra protection
from abuse in the field.
FEATURES
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