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LF72 with DC400

LF72 with DC400LF72 with DC400

Top Features

  • Solid Wire .023 - 1/16", Cored Wire .030 - 5/64"
  • Stainless Steel, Aluminum and Flux-Cored Wire
  • Arc Force Control, Pinch Control
  • Continuous Output Control
  • Processes: Wirefeeders

With true multiprocess capabilities, the DC400 provides outstanding arc characteristics for both constant current and constant voltage applications. Full arc control with MS-style remote control connections. Packaged with the LF72 wire feeder to deliver reliable performance day after day.

Product Details


Drive-Roll System: 2-roll
Wire feed speed: 50 - 800 IPM
Input Power: 24 - 42 VAC, 9 A, 50/60 Hz
Output Capacity: 500 A @ 60% duty cycle, 400 A @ 100% duty cycle
DC Amperage Range: 60 A at 22 V - 500 A at 42 V
Maximum OCV: 57 VDC
Rated CC Output: 500 A at 40 VDC, 50% duty cycle
450 A at 38 VDC, 60% duty cycle
400 A at 36 VDC, 100% duty cycle
DC Voltage Range: 12 - 42 V
Rated Input Current: 400 A, 36 VDC, 100% duty cycle: 78 A at 230 V, 39 A at 460 V, 31 A at 575 V



Additional Features

DC400 Features

  • Extreme-Duty™ stainless steel construction for operation in harsh environments
  • Outstanding arc characteristics on both constant current and constant voltage processes
  • Windings and rectifiers protected against moisture and corrosive environments
  • Single range full output current/voltage potentiometer for easy operation
  • Solid state circuitry provides extra-long life for repetitive welding applications
  • Ammeter/voltmeter
  • Three position mode switch - CC (Stick, TIG), CVI (MIG, Flux-Cored), CV (Submerged Arc)
  • Arc force control (CC mode only) to adjust short circuit current for a soft arc or a forceful driving arc
  • Arc control (pinch effect) to control splatter, fluidity, and bead shape (operates only in CVI mode)
  • Line voltage compensation for constant output regardless of input power fluctuations
  • Fan cooled with electronic and thermostatic protection from current overload and excessive temperatures
  • Amphenol and terminal strip connections for remote control and wire feeders
  • Power on/off switch with pilot light
  • 3 year warranty on parts and labor
  • Certified to ISO requirements, CSA approved
  • Rugged tubular Pak-Lok-Frame™ enclosure for increased protection
  • Can be assembled with Pak-Lok™ connectors into 4Pak™ and 6Pak™ multioperator systems with single source power input ideal for onsite applications including construction and shipbuilding

All Product Resources

Options, Accessories and Related Equipment

Wire feeder
Semiautomatic welding guns
Gas hose
Three-wheeled shop-type undercarriage

Related Equipment
LF74 4-roll wire feeder

LF72 with DC400

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Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.