Product Description:

The MLS102S-3A-0450-NNNN is a secondary component in the MLS Synchronous Linear Motors series manufactured by Bosch Rexroth Indramat. It provides the passive iron core and magnetic return path that interact with the energized primary carriage to generate linear thrust in factory automation equipment. The component performs a mechanical and magnetic role rather than receiving electrical power directly. It completes the motor circuit so gantry axes, pick-and-place heads, and material-handling tables can move precisely along the machine bed. Its passive design also keeps electrical connections and active cooling equipment away from the secondary track.

The component has a pole pitch of 37.5 mm, so the magnetic poles align with the corresponding primary coil geometry for smooth force production. Each section has a length of 450 mm and can be installed end to end with additional sections to accommodate longer travel distances. A mass of 14.2 kg/m contributes to the structural load placed on the machine frame and support rails. The secondary motor type code is S, indicating the standard iron lamination stack used for this product group. Because the iron secondary is not electrically powered, its intrinsic power loss is 0 W. This passive operation reduces the amount of heat that must be removed directly from the secondary track during continuous machine operation.

Heat transferred into the secondary is limited to 3% of the primary motor’s nominal power loss, helping reduce temperature differences across adjacent machine elements. The component uses screw mounting for direct attachment to steel or aluminum machine beds without adhesives. This attachment method allows the secondary sections to remain securely positioned relative to the moving primary carriage. A protective cover sheet shields the laminations from debris and accidental contact after the linear motor has been assembled. The cover also provides a continuous exposed surface along the installed track while leaving the underlying magnetic structure protected. Proper alignment of the mounted sections helps maintain consistent spacing between the primary and secondary components throughout the axis travel.