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Miller Pipeworx 400 Welding System 230/460 V #951381

Part Numbers: 951381
UPCs: 715959562454

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Pipeworx 400 Welding System 230/460 V #951381
Miller Pipeworx 400 Welding System 230/4...
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Welding type:





Power supply:

220V 3 Phase

220V 3 Phase



Material type:

Mild Steel

Mild Steel

Stainless Steel

Stainless Steel

  • Multi-Process
  • Multi-Voltage
  • 3 Phase
  • 25 ft Lead
  • Torch Included
  • 3-Year Warranty

Miller Pipeworx 400 Welding System 230/460 V #951381

Simplified and optimized for pipe fabrication shop welding, the PipeWorx 400 Welding system provides one-touch welding, quick process changeover, and Pulsed and Modified Short-Arc MIG processes, making training and turn-around times faster than ever.

Welders Supply offers this system at the lowest online price anywhere, and shipping is free within the continental United States on all orders over $300.


  • PipeWorx 400 Power Source, 230/460V
  • PipeWorx Dual Feeder with drive rolls (300366) 
  • Two 15 ft (4.6 m) PipeWorx 300A MIG Guns (195400) 
  • Side-mount Cable Hangers
  • Cable Kit with 25ft. (7.6m) Work Sense Lead (300367) 
  • Running Gear with Dual Cylinder Rack (300368)  

Simple Process Setup

  • Clearly labeled controls in easy-to-understand welder terminology.
  • It requires just a few basic steps to set up a new weld process, resulting in less training time and fewer errors from incorrect setups.
  • The front panel was designed by welders for welders. Only backlit controls are adjustable to eliminate confusion.
  • Memory feature stores four programs for each selection: Stick, DC TIG, and MIG (left and right side of feeder). Beneficial when using multiple procedures, multiple process parameters or multiple welders and eliminates the need to remember parameters.

Quick Process Changeover

  • No need to manually switch polarity or cables and hoses between processes. Simply push a process selection button to choose a welding process. PipeWorx 'Quick-Select' technology automatically selects the welding process, the correct polarity, cable outputs, and welding parameter.
  • Quick process changeover eliminates set-up time for switching cables and gas hoses. Also, reduces the risk of weld reworks due to incorrect cable connection.

Multiprocess Machine

  • Weld processes are optimized to deliver superior arc performance and stability specifically for root pass, fill and cap pipe welding.
  • Includes conventional Stick, DC TIG (Lift-ARC™ or HF Start), Flux-Cored and MIG welding processes.
  • Also features the advanced RMD® and Pulsed MIG processes that deliver superior quality welds, increase productivity, and reduce rework and training.

Streamlined System

  • Wind Tunnel Technology™ and Fan-On-Demand™ provide system protection in the dusty shop environment.
  • Innovative cable and gun storage manages clutter for a cleaner, organized weld-cell area. Cables remain connected to the power source and do not need to be switched for the different welding processes.
  • All system components have been selected to meet the needs of a pipe fabrication shop.

PipeWorx ROI Calculator

The PipeWorx ROI calculators are designed to help you determine your unique return on investment and payback based on your shop and the savings the PipeWorx Welding System delivers.

Get welding machinesmulti-process welders, welding helmets, and other welding tools from Welders Supply.

Other Versions of the Miller Pipeworx 400:


  • Flux Cored (FCAW)
  • MIG (GMAW)
  • Pulsed MIG (GMAW-P)
  • RMD
  • Stick (SMAW)
  • Air Carbon Arc Cutting and Gouging (CAC-A)

Pipeworx 400 Welding System 230/460 V

Industries Interests Construction
High Purity Processing
Mechanical Contracting
Pipe Fabrication / Construction
Pressure Vessel
Weldable Metals Steel
Stainless Steel
Specialty Metals
Carbon Diameter 5/16 in (7.9 mm)
Input Voltage 220/230/240 V
460/480 V
Input Phase 3-Phase
Input Hz 50 / 60 Hz
Current Type DC
Max Open Circuit Voltage 90 VDC
Wire Feed Speed 50 IPM - 780 IPM
Warranty Miller's True Blue Warranty
Portability Lift Eye (Standard)
Running Gear / Cart (Standard)
Weld Output CC / CV


Height: 29.00 Inches
Width: 40.00 Inches
Length: 48.00 Inches
Weight: 501 Lb(s) 0 Oz

Product Questions and Answers

Q - Can a spool gun be used on this machine? A - No a spool gun cannot be used for the Pipeworx 400 Welding system.
Q - Is there a single feeder available for this system? A - No, a single feeder cannot be used with this system.

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