Product Description:

The MLP070B-0300-FS-N0CN-NNNN belongs to the MLP Synchronous Linear Motors series from Bosch Rexroth Indramat. This B-length, size-070 primary part delivers linear motion by interacting with a passive secondary track, providing direct thrust for material handling, packaging, and machining axes that require high acceleration and repeatable positioning in industrial automation. Its front-side wire exit simplifies routing through machine frames. Standard encapsulation seals the windings against coolant leaks while allowing the integrated liquid channels to manage thermal loads.

During continuous operation, the stator develops 820 N of nominal thrust while drawing a rated phase current of 11.6 A from the inverter. Heat generated by copper and iron losses reaches 900 W, so the built-in liquid cooling circuit is required. A minimum coolant flow of 1.3 l/min keeps the coil temperature within limits, and the thermal time constant is 2.4 minutes. The motor has a force constant of 70.70 N/A and a voltage constant of 40.8 Vs/m, allowing the drive controller to relate current to thrust and back-EMF to velocity. Windings marked by code 0300 have an inductance of 36.2 mH and a resistance of 5.7 Ω, which influence current ripple and servo loop bandwidth.

For dynamic moves, the unit can deliver a peak thrust of 2,600 N and accepts up to 67.7 A of stator current, while the passive magnet rail exerts an attractive force of 3,750 N that must be considered in mechanical sizing. The motor reaches 300 m/min at maximum force and can achieve a no-load nominal velocity of 450 m/min. Because no encoder is installed, position feedback must be provided externally or the axis must be operated open-loop. Each pole is 37.5 mm wide, which sets the commutation pitch, and the moving primary mass of 10.4 kg contributes to system inertia and load capacity.