Product Description:

The MLS140S-3A-0450-NNNN/S002 is a magnetic secondary segment used in direct-drive applications and produced for the MLS Synchronous Linear Motors series. When combined with a matching primary coil, the segment converts electromagnetic fields directly into linear motion for precise positioning in assembly cells, gantry stages, and material handling lines. Its permanent-magnet array forms the moving part of the drive, allowing contact-free thrust generation without ball screws, belts, or rack-and-pinion gear sets. This arrangement helps reduce mechanical wear and backlash in axes that require smooth travel and repeatable motion.

This segment uses the 140 size code, which identifies the section width and magnet pitch used by the matching drive system. A stack length of 0450 mm increases the available force because a longer magnetic surface couples more flux to the primary. Installation tolerances call for a nominal air gap of 1.0 ± 0.4 mm, and maintaining that clearance helps prevent contact while keeping the magnetic field effective. The permanent magnets are rated for a secondary temperature no higher than 70 °C, so thermal conditions must be controlled during sustained high-duty operation. Structural attachment is done by fixed with screws, which provides uniform clamping pressure and repeatable positioning along the guideway.

Contamination control is provided by with a cover sheet, and the stainless plate helps block chips that could short the magnetic poles. The designation S identifies the secondary motor type and indicates a continuous magnet carrier, so long travel carriages can be assembled from adjoining segments with simple butt joints. Segments in the MLS Synchronous Linear Motors line share datum faces, which allows mixed lengths to be combined without additional shims. Support from Bosch Rexroth Indramat includes matching parameter data for the segment geometry and magnetic loading.