Profax® Weatherproof 400 Amp DC/CC Welding Machine

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  •  Profax® Weatherproof 400 Amp DC/CC Welding Machine
  •  Profax® Weatherproof 400 Amp DC/CC Welding Machine


Profax® Heavy Duty Weatherproofed Welding Machine

Stainless Steel Constant Current Welding Machine by Profax®.  

The PX400SS is a Heavy-duty Stainless Steel 400 Amp DC Constant Current power source built for the most demanding applications, and harshest welding environments. Built with corrosion resistant stainless steel frame and panels, double epoxy sprayed internal components with silicone coated electrical connections.


  • Stick (SMAW)
  • Air Carbon Arc (CAC-A)
  • FCAW - w/ voltage sensing wire feeder


  • Remote amperage control receptacle (Remote Control Sold Separately)
  • Excellent 6010 stick electrode performance
  • Control-circuit overload breaker allows quick resetting and eliminates the need to keep fuses on hand
  • High/low output terminals conveniently allows welder to choose between two different amperage ranges for improved output control
  • Two wide amperage ranges fro fine adjustment allows exact control of weld amperage
  • Infinite amperage control allows precise weld output adjustment
  • Constant current
  • All stainless steel frame and panels
  • 2 coats of epoxy spray on internal components
  • Silicone coating of electrical connections
  • 3 year warranty on parts and labor
  • Free Shipping Within the Contiguous United States


Part Number PX-400SS
Rated Output 400 Amps @ 36VDC
Input Power 3-Phase
Duty Cycle 60%
Max. Open-Circuit Voltage 80V
Low Current Range 45-345
High Current Range 80-550
Height 33" (838mm)
Width 22" (559mm)
Depth 36-1/2" (927mm)
Weight 697 lbs. (316kg)


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