Product Description:

The MLS140S-3A-0600-NNNN/S002 is a secondary rail for linear motor assemblies produced by Bosch Rexroth Indramat as part of the MLS Synchronous Linear Motors series. Installed along the travel route, the rail provides the ferromagnetic teeth that react with the moving primary to generate direct thrust without ball screws or belts. In industrial automation, it provides a rigid, low-maintenance reaction surface for high-speed, precisely synchronized axes used on gantries, material-handling stations, and light machining equipment. The modular rail design also allows multiple sections to be installed along an extended linear travel path.

Each secondary section produces an attractive magnetic force of 14,400 N, which must be considered when sizing the supporting frame and mounting hardware. The pole width of 37.5 mm establishes the tooth pitch and corresponds to the primary winding geometry, helping maintain predictable force characteristics throughout the travel range. This unit has a standardized segment length of 600 mm, allowing multiple sections to extend the stroke without custom fabrication. Its overall body width of 175 mm accommodates mounting frames commonly used on aluminum machine bases. The rail has an IP65 protection rating, preventing dust ingress and protecting the assembly against low-pressure water jets. Proper alignment between adjacent segments helps the primary move smoothly across section joints.

The individual segment weighs 11.3 kg, and its mass per meter is 18.8 kg/m, which helps determine the load placed on support structures when several rails are mounted end to end. Continuous operation is permitted until the secondary steel reaches 70 °C; cooling clearance should be maintained because higher temperatures can reduce magnetic performance. The rail belongs to motor size 140 and is classified as secondary type S, indicating compatibility with corresponding MLS primary components. Screws secure the rail through factory-drilled mounting holes, providing stable attachment to the machine base. A cover sheet protects the rail surface from dropped tools, metal chips, and other debris encountered during normal machine operation. The mounting surface should remain flat and free of contamination to prevent misalignment along the completed travel path.