The RUNNER 75 is a mobile belt grinding system developed for surface grinding applications, especially for grinding welds flush with the material surface and removing unwanted layers created during plate rolling, plasma cutting or oxy-fuel cutting. With a stable chassis, continuous grinding-depth adjustment, rapid work-mode disengagement and a dedicated area for small workpieces, it offers a practical solution for controlled industrial surface finishing.
The RUNNER 75 is a mobile belt grinder designed for demanding metal surface preparation tasks in fabrication and production environments. Its main applications include grinding weld seams down to the surrounding material level and removing unwanted surface layers left after rolling or thermal cutting processes.
The machine uses a 75 × 2,000 mm grinding belt with a grinding width of 75 mm. The belt operates at a fixed speed of 30 m/s, driven by a 3,000 W motor. This configuration provides the power and working width required for efficient treatment of larger metal surfaces while maintaining a controlled grinding path.
A major advantage of the RUNNER 75 is its continuous grinding-depth adjustment. The integrated depth stop allows the operator to set the grinding depth accurately, helping achieve more consistent material removal and reducing the risk of excessive grinding.
The machine is built on a stable mobile chassis, allowing it to be moved along large steel plates and fabricated components rather than requiring the workpiece to be repositioned. A rapid operating-mode deactivation system simplifies switching between grinding and transport conditions, improving handling during everyday workshop use.
In addition to grinding large surfaces, the RUNNER 75 includes a dedicated area for the surface grinding of small workpieces, increasing its versatility within the workshop. N.KO also emphasizes its low operating costs, making it suitable for regular production use where surface preparation is performed frequently.
The RUNNER 75 weighs 70 kg and is available in three-phase electrical configurations. It is supplied with one 75 × 2,000 mm grinding belt in grain 80 and the service documentation required for operation.
The RUNNER 75 combines mobility with controlled grinding depth, allowing the machine to travel over large workpieces while maintaining a more consistent cutting depth than conventional handheld grinding methods. This is particularly useful when long weld seams or broad surface areas need to be levelled accurately.
Its stable chassis helps maintain contact between the abrasive belt and the workpiece, while the continuous depth-setting system gives the operator precise control over material removal. The fixed belt speed of 30 m/s provides consistent grinding performance, while the 75 mm working width allows efficient coverage without making the machine unnecessarily large or difficult to maneuver.
The additional small-workpiece grinding station further increases the machine’s usefulness, allowing the RUNNER 75 to perform both mobile surface grinding and localized workshop grinding with the same system.
The RUNNER 75 is a strong choice for workshops and production facilities that need a mobile, controlled alternative to intensive handheld grinding. Instead of moving large and heavy workpieces to a stationary grinder, the machine can be brought directly to the workpiece and guided along the surface.
Its combination of stable chassis design, adjustable grinding depth, high belt speed and 75 mm working width helps improve consistency and productivity in repetitive surface-preparation work. The additional small-workpiece grinding position and relatively low operating costs also make the RUNNER 75 a versatile and practical machine for everyday industrial use.
RUNNER 75
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