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D300K 3+3SE Diesel Engine Driven Welder

D300K 3+3SE Diesel Engine Driven Generator WelderD300K 3+3SE Portable Diesel Engine Welder

Top Features

  • DC CC 3kW
  • Fuel Efficient Industrial Diesel Engine
  • Pure DC Generator Welding Output
  • All Copper Windings
  • Five Current Ranges with Overlap
  • 300 Amps Output @ 60% Duty Cycle

The pure DC generator with all copper coils provides excellent welding characteristics. The welder’s choice for pipeline welding and general construction work. Constant speed engine for instant arc starting. The Kubota D1503 (Tier 4) diesel engine provides reliable, efficient operation in even the toughest conditions.

Product Details


DC Amperage Range: 40 - 350 A
Maximum OCV: 90
Rated Output: 250 A at 30 VDC 100% duty cycle
300 A at 32 VDC 60% duty cycle
Auxiliary Power: 3,000 watts, 60 Hz, 20 amps with circuit breaker and GFCI receptacle
Engine: Kubota D1503 Diesel EPA Tier 4
Fuel Capacity: 16 gallons (60.6 L)
Fuel Consumption: 0.4 GPH (1.3 LPH) @ high idle (1,800 RPM)
Weight: 1,371 lb (622 kg)
Dimensions: H: 45.5" (1156 mm) W: 24.3" (616 mm) L: 62.8" (1594 mm)

Additional Features

The D300K 3+3 SE is a heavy duty, diesel engine driven, DC arc welding power source, capable of providing constant current output for stick welding or DC TIG welding. This welder is wound with all copper coils, rated at 300 amps / 32 Volts, and provides other features such as improved door latches and stainless hinges. The D300K 3+3 SE has Diesel Engine Protection. In the event of sudden low oil pressure or high coolant temperature, the engine immediately shuts down. Available with a CV Wirefeed Module to provide excellent voltage control with semi-automatic wire electrode welding and other open-arc welding processes.

Options, Accessories and Related Equipment

Construction trailer
LN25 wirefeeder with CV wirefeed module
RC4 remote control
TIG module
240 VAC auxiliary power

Related Equipment
LN25 wirefeeder
RC4 remote control

Used Diesel Welders

D300K 3+3SE Diesel Engine Driven Welder

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Airgas, an Air Liquide company, is a leading U.S. supplier of industrial, medical and specialty gases, as well as hardgoods and related products; one of the largest U.S. suppliers of safety products; and a leading supplier of ammonia products and process chemicals.