Southwest Irrigation, LLC
Southwest Irrigation is the leading supplier for Heap Leach Mining Systems and Agricultural Irrigation Systems in the southwest.


Rolling 412 Series
4" IPS to 12" DIPS

McElroy’s 412 line of fusion machines will butt fuse pipe sizes from 4” IPS to 12” DIPS (110mm to 340mm). They come in multiple model configurations to meet the demands of your pipeline project. The Rolling 412 changed the industry when introduced as the first fully self-contained fusion machine in the world. The TracStar 412 added all-terrain mobility to the unit setting a new industry standard.

Rolling, TracStar®, and Pit Bull® machines incorporate the interchangeable 412 4-jaw carriage, which can be easily removed for in-ditch fusion. For tight installations, the outer fixed jaw and skid can be removed from the carriage converting it to a 3-jaw carriage for an even more compact fusion unit. These machines can fabricate segmented ells with optional mitered inserts and are DataLogger® compatible.

Rolling 412

  • Wheeled chassis for easy maneuvering on the jobsite
  • Carriage can be easily removed for close quarter use
  • On-board generator for powering heater and other devices
  • Gas-powered self-contained or electric models available
  • Hydraulic pipe lift aids in loading and unloading pipe
  • DataLogger® compatible
  • Hydraulic Clamping available

TracStar® 412

  • Self-contained, self-propelled, all-terrain
  • Powered by a 20-HP liquid-cooled diesel engine
  • Carriage can be easily removed for close-quarter use
  • On-board generator for powering heater and other devices
  • Dual hydraulic pipe lifts aid in handling pipe
  • Fits in a standard long-box truck bed for easy transport
  • DataLogger® compatible
  • Also available as an Automated fusion machine
  • Hydraulic Clamping available.

The TracStar 412 offers a self-contained, self-propelled, track-mounted vehicle that can handle grades up to 30%. It is the number one choice on the jobsite for its ease of maneuverability and productivity gains.

New to the TracStar 412 is an option that allows automated control and monitoring over the heat, soak, fuse and cool cycles. The Automated TracStar 412 system guides the operator through a step by step procedure for fusing pipe. It has a built-in datalogging feature that keeps a record of each fusion joint, which allows you to verify joint integrity.

Pit Bull® 412

  • Compact fusion for special applications
  • Hydraulic Power Unit (HPU) sold separately
  • DataLogger® compatible
The Pit Bull 412 is used for special applications where the wheeled or tracked vehicle is not needed.

DynaMc® 4-Jaw Auto

  • Operates within gas industry specification PL2-3:2006 and water industry specification 4-32-08 and other specifications.
  • Modular design featuring a common electrical control unit and HPU to operate the carriage, heater and facer.
  • Special heater automatically retracts to minimize open/close times.
  • Automatic fusion parameter calculations.
  • USB Port for downloading fusion reports and uploading firmware updates.
  • Industry experts’input helped create the powerful mix of features that make the DynaMc Auto an excellent option. A hydraulically powered facer trims the pipe ends, while an electronic control unit has USB technology for downloading reports in a faster format.

    DynaMc® Hand Pump

  • Features a double-action hand pump for fast carriage speeds.
  • Capable of up to 1500 PSI fusion pressure.
  • DataLogger® compatible
  • Rugged and compact.
  • The new DynaMc® HP (Hand Pump) machines butt fuse pipe with a hand-powered pump and are available in 2- and 4-jaw models.

    Worthy of the DynaMc name, the HP is a true dynamo, giving the operator a powerful fusion unit in a small package. With a detachable easy-lift cradle, the HP machine is easily maneuvered into tight spaces. The HP’s electric facer is sturdy and powerful, with the option of being loaded from either side of the machine for improved convenience.

    DynaMc® Electric Pump

  • Features a common Electric Pump that powers a variety of fusion machines.
  • Utilizes a hydraulic accumulator to maintain fusion pressure and reduce power consumption.
  • Employs McElroy's standard carriage and manifold assembly.
  • Capable of up to 1500 PSI fusion pressure.
  • DataLogger® compatible
  • Sidewall 28 and Compact 28 Vertical units are also available.
  • The DynaMc® EPs (Electric Pump) use a common, modular DynaMc EP Hydraulic Power Unit (HPU) and are available in 2- and 4-jaw models. The EP HPU utilizes a standard manual carriage manifold that is powerful enough to tackle thick-walled pipe. A strong electric facer can be loaded from either side of the carriage, offering flexibility when fusing pipe in tight confines.



      Office 520-384-9223
    401 E Maley
    Willcox, AZ 85643
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