Product Description:

The MLP070C-0030-FT-N0CN-NNNN is a primary section from the MLP Synchronous Linear Motors series manufactured by Bosch Rexroth Indramat. As the moving component of a linear drive, it converts three-phase current into direct thrust along a magnetized track, replacing ball screws or belt transmissions in automation axes that must position loads with high repeatability. This arrangement suits machines that need precise linear motion without the backlash and wear associated with mechanical transmission elements. Size code 070 corresponds to a 37.5 mm pole pitch and a compact footprint, while the absence of an integrated encoder leaves feedback selection to the machine builder. A sealed winding block and thermo-encapsulation protect the internal conductors against vibration and process contaminants.

The mover produces a continuous thrust of 1200 N and can reach a short-term peak of 1900 N. An attractive force of 5500 N must also be considered when sizing the secondary rail and supporting bearings because the magnetic pull acts continuously across the air gap. A force constant of 326.10 N/A links output to drive current, so the controller delivers rated force when 3.7 A flows and keeps headroom up to 6.5 A for acceleration demands. Electrical losses are governed by 4.0 Ω phase resistance and 22.6 mH inductance, which influence current ripple and commutation filter design in the connected drive system. The 1.0 mm² power leads exit at the front of the housing, which suits wire-guided cable chains and straight cable routing.

Dynamic behavior is characterized by a nominal carriage speed of 70 m/min, which drops to 30 m/min when the motor is loaded to maximum force; this change follows a back-EMF gradient of 188.7 Vs/m. Under heavier loading, the lower speed reflects the greater voltage demand placed on the drive as thrust increases. Heat generated in the copper is transferred to a liquid circuit, and the integral channels hold 0.111 L of coolant. The motor reaches thermal equilibrium within a 2.4 min time constant, keeping the 18.4 kg assembly within its operating limits during sustained duty.