Multi-Weld 350 MULTI-OPERATOR TM Connect Several DC+ Welders to One Power Supply. 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. Processes (DC+ Processes Only) Stick MIG Flux-Cored Description Gouging Output Input 80 VDC Advantage Lincoln Recommended General Options • Independent arcs. Starting or stopping one Multi-Weld doesn’t affect the welding of the others. Distribution Box, Welding Cable Connectors, Input Cables, Remote Output Control, Undercarriage • 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. Recommended Power Source Options SAE-400, Vantage 500, DC-655, DC-1000, DC-1500 • 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). Recommended Wire Feeder Options LN-15 Across-the-Arc, LN-25 Across-the-Arc Order K1735-1 Multi-Weld 350 • 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. TECHNICAL SPECIFICATIONS Product Name Product Number Input Volts Rated DC+ Output Current/Voltage/Duty Cycle Input Current at Rated DC Output (80V DC) Multi-Weld 350 K1735-1 80V DC (50 - 113 Peak Range) 350A / 34V / 100% DC+ 165A Output Range Dimensions HxWxD in. (mm) Net Weight lbs. (kg) 15 - 40 Volts 30 - 350 Amps Max. OCV: 78V 11.6 x 10 x 21.5 (295 x 254 x 546) 59 (27) Publication E5.302 3/05 Web Update 6/05 www.lincolnelectric.com

A CLOSER LOOK 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. Chopper Technology for extremely fast response for smoother output control. • High efficient design and low input current draw means more welding. Chopper Technology CV-Wire Mode Traditional Reactor Technology CV-Wire Mode Traditional weld control is more variable around the desired output. Patented and award-winning Lincoln Chopper Technology delivers superior...

A CLOSER LOOK QUALITY AND RELIABILITY • Printed circuit boards are environmentally-shielded using Lincoln's engineered potting and protective frame trays. • Thermostat and voltage overload protection. • Fan-As-Needed – solid state controlled fan operates cooling fan only when needed. Minimizes power consumption, operating noise and dust intake. SYSTEM SELECTION HOW MANY KILOWATTS DOES YOUR PROCESS REQUIRE? Description Diameter in. (mm) Flux-Cored Wire Gas-Shielded .035 (0.9) .035 (0.9) .045 (1.2) 300 ipm WFS, 130A, 24V 600 ipm WFS, 195A, 30V 300 ipm WFS, 185A, 28V 500 ipm WFS, 255A, 29V 250 ipm...

RECOMMENDED OPTIONS GENERAL OPTIONS GENERAL OPTIONS CONT. Distribution Box Makes connecting up to 10 MultiWeld 350’s quick and easy. Contains copper bus bar for connecting multiple “pig-tails”. Four “pig tails” included. Order K1736-1 Remote Output Control Provides 25 ft. or 100 ft. (7.6m or 30m) of remote output control. Connects to 6-pin receptacle on front of Multi-Weld 350. Order K857 — 25 ft. cable. Order K857-1 — 100 ft. cable. Twist-Mate Cable Plug For connecting welding cable to output terminal receptacles. For 1/0-2/0 (50-70mm2) cable. Order K852-70 Undercarriage Valet style undercarriage...

f CUSTOMER ASSISTANCE POLICY 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 advice or information about their use of our products. We respond to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability with respect to such information or advice....