THG Automation Rail System to Debut at FABTECH 2026

The new CobotRunner rail positioners enable modular, expanded work ranges for robotic welding systems starting this October.

Updated on Oct. 16, 2026 in Robotics

Bold flat-color editorial illustration of an industrial rail track system, representing modular robotic automation technology.
THG Automation will introduce its new CobotRunner linear rail positioners at FABTECH 2026, expanding the range for robotic welding systems. AI Illustration. Upload story photo >

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THG Automation is set to debut its new CobotRunner linear rail positioner and MobileRunner systems at FABTECH 2026 in Las Vegas. These announced hardware solutions aim to expand robotic welding range and mobility within manufacturing environments.

Why it matters

Expanding the reach of robotic welders through modular rail systems enables automation in larger-scale manufacturing workflows. This technology reduces the constraints of fixed-position robotics, allowing for more flexible shop floor layouts.

The MobileRunner utilizes a servo-driven, heat-treated rack and pinion drivetrain to manage travel. The system supports modular expansion, starting at a 3-meter length with 1-meter segments.

The players

THG Automation

A robotic welding and automation integration firm focused on developing hardware and software for industrial applications.

FABTECH

The primary North American trade show covering metal forming, fabricating, welding, and finishing technologies.

The details

The CobotRunner and MobileRunner systems function as linear positioning units that extend the effective work envelope of robotic arms. These rails use a servo motor—an electrical device that provides precise control of angular or linear position—to move welding rigs along a fixed path. The rack and pinion setup transforms rotary motion from the motor into linear movement along the rail, providing stable support for robotic welding applications mounted to the assembly.

Timeline

  1. October 21, 2026: THG Automation opens its booth at FABTECH 2026.

  2. October 23, 2026: FABTECH 2026 concludes.

The Tech Race

THG Automation is pushing to increase the modularity of robotic welding cells to compete with fixed-table automation standards. By integrating systems like the IPG Lightweld 1500XR onto mobile rails, the company aims to move beyond static, single-workstation welding designs.

Manufacturers attending FABTECH 2026 can view these systems in operation at booth S-44061. The modular design suggests that shop floor managers may soon be able to scale welding rail lengths to fit specific floor footprints.

The takeaway

The move toward modular, servo-driven rail systems shifts the focus from fixed-table welding to scalable, adaptable robotic architectures. Industry professionals should monitor the integration performance of these rails when combined with high-amperage welding systems like the Fronius iWave 400.

Further reading

Explore ongoing advancements in industrial automation and precision manufacturing at Robotics.

Source note: This article includes information reported by Fabricating and Metalworking.

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