Product Details

Welbee WB-W400 AC-MIG Weld Power Source
Enhanced welding support for thin plate aluminum


The 400A inverter-based weld power source delivers AC-MIG welding with both WavePulse and AC WavePulse capability.  The W400 is excellent for application requiring precise control of the heat input to the substrate in balance with the heat input to the welding wire.

  • Enhanced welding support for thin plate aluminum via enhanced AC welding mode
  • Synchro-MIG function allows for optimized welding of different plate thicknesses
  • AC Pulse and Wave Pulse modes provide beautiful welds with reduced soot
  • Standard Aluminum & Stainless Steel welding modes
  • 80 kHz Digital Inverter
  • Control the weld current via a torch switch
  • Crater Fill Function prevents crater oxidation
  • 3 phase primary (460 Volts)
  • 100 job memory storage for semi-automatic use

More Machines Under Power than Anywhere Else

In our Technology Showrooms, you can see more machines under power than anywhere else. Our unmatched reputation for service before, during and especially after the sale is the reason why more companies choose Capital than any other machine tool distributor. We hope you enjoy your stay here in our home on the web. We urge you to browse through our pages and check out our product lines.

Call to Action

Service Coverage Area

Capital’s service coverage is unequaled in the industry. To ensure that we are able to provide the fastest possible response times, Capital maintains a fleet of service vans, each strategically located to serve our customers as efficiently as possible.

Each service call is treated with the same priority. Whether the machine is in or out of warranty, Capital is committed to a “First Call Fix” program designed to motivate everyone to expedite the repair quickly and effectively. The map below illustrates our service coverage area.

coverage area map