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Piping Systems & Welding

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Butt Welding

Rolling 618

Available for purchase or rental

Rolling 618 bridges the gap between small and large diameter fusion. The machine offers added versatility with a removable fourth jaw for compact, in-ditch use. McElroy Rolling 618 machines are DataLogger® compatible.


Data Sheet

Operations Manual

Welding Parameters

McElroy’s Acrobat machines that feature the QuikFit® carriage are size-specific and are composed of lightweight, modular components so that the upper and lower jaws can be assembled around the pipe by hand. This eliminates the difficulty of lifting and fitting an entire carriage into a small space. It will fuse pipe in any orientation that is required on plumbing, mechanical and HVAC installations, including vertical and overhead. The Acrobat 355/400 size range is 355mm and 400mm (14” and 16” nominal)
Ideal Applications Include:

Please refer to the Welding Selection Chart for ideal applications.


Size Range:

160-450mm (6" IPS - 18" OD)


See Welding Selection Chart


See Welding Selection Chart






Machine: 1100 lbs.

Vehicle: 495 lbs.

Shipping Dimensions:


Shipping Weight:

2050 lbs.


  • Patented Centerline Guidance System for equal distribution of force around the joint
  • Industry standard semi-automatic hydraulic control system
  • ISO-compliant industrial Teflon-coated plates
  • On-board generator for powering heater and other devices
  • Removable 3- or 4-jaw carriage for in-ditch use
  • Dual hydraulic pipe lifts
  • Serrated jaws and inserts keep pipe from slipping during fusion
  • Hydraulic clamping available
  • Powerful hydraulic facer for facing the toughest pipe with ease
  • Hard-anodized aluminum wear surfaces for corrosion resistance
  • DataLogger® compatible
  • Microprocessor-controlled heater
  • Thrust-bearing-equipped clamp knobs to minimize force required to clamp and round pipe


  • Butt Fusion