Miller Electric

Multiprocess Welders

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Choose your Pipe Welding application:

Fabrication Shop

Field Construction

The PipeWorx 400, an industry standard for pipe fabrication shops, and the all new
PipeWorx 350 FieldPro™, the premier choice for onsite field construction, are contractors number one choice for pipe welding fabrication.

The systems streamlined set-up with one touch welding, quick process changeover, and advanced MIG processes, make training and project turn-around times faster than ever before.

Typical Applications

  • Process Piping
  • Refinery
  • Petrochemical
  • Power Generation
  • HVAC & Water Pipe

RMD on Carbon Steel Pipe
Provides a technical explanation of the techniques required to weld carbon steel pipe with the RMD Pro (MIG Modified Short Circuit) welding process 1G Rolled Position and the 5G Fixed Position.

RMD® (Regulated Metal Deposition)

A precisely controlled short-circuit metal transfer that provides a calm, stable arc and weld puddle.

  • Ideally suited to root pass welding
  • Consistent side wall fusion
  • Less weld spatter
  • Tolerant to hi-lo fit-up conditions
  • More tolerant of tip-to-work distance
  • Less welder training time
  • Thicker root passes can eliminate hot pass, improving productivity
  • Eliminate backing (purge) gas on some stainless steel applications

Cap and Fill Passes on Pipe with Pulse
Provides a technical explanation of the techniques required to weld carbon steel and stainless steel pipe with the MIG Pulse welding process in the 1G Rolled Position and the 5G Fixed Position (uphill and downhill travel).

Pulsed MIG

This method of Pulse welding provides a shorter arc length, narrower arc cone and less heat input than with traditional Spray Pulse transfer. This process coupled with RMD® for root pass welding permits welding procedures with one wire and one gas to eliminate process switch-over time.

  • Ideally suited to fill and cap pass welding
  • Easier puddle control than conventional spray pulse
  • Shorter arc lengths and narrow arc cone for out-of-position welding
  • Less heat input reduces interpass cooling time and improves weld cycle time
  • More tolerant of tip-to-work variation
  • Improve fusion and fill at toe of weld
  • Enables one-wire with one-gas weld procedures
  • Higher travel speeds and higher deposition
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