Product Description:

The MLP140C-0120-FT-N0CN-NNNN is a synchronous linear motor primary section produced by Bosch Rexroth Indramat within the MLP Synchronous Linear Motors series. It converts electrical current directly into thrust along a track. This eliminates mechanical transmissions in automation lines that require fast, precise linear motion such as gantries, pick-and-place arms, and machining stages.

With a continuous nominal force of 3,150 N, the unit delivers steady thrust during extended duty cycles, and the force constant of 152.60 N/A links output to drive current, simplifying servo controller tuning. The winding set has 13.0 mH of inductance and 2.55 Ω resistance at 20 °C, parameters that influence electrical time constants and copper losses. Rated current is 20.7 A (rms), and the drive can supply up to 122.9 A (rms) for short bursts, pushing instantaneous force to 10,000 N when peak acceleration is required. Motor size 140 provides the active width, and power conductors are routed through the front, while external position feedback must be used because no encoder is installed. The voltage constant equals 88.1 Vs/m, allowing predictable back-EMF calculations.

Thermal management is handled by liquid cooling. At only 2.9 l/min of coolant flow, the channel experiences a pressure drop of 1.2 bar while extracting up to 2,000 W of power loss generated in the coils. The attractive magnetic preload between the primary and secondary sections reaches 14,400 N, so mounting surfaces must withstand that steady load. During operation, the slide can reach a nominal travel speed of 190 m/min, and when the drive maintains maximum force, the velocity is limited to 120 m/min to stay within thermal margins. Thermo-encapsulation seals the windings against coolant ingress, the assembly mass is 38.9 kg, and the power cabling uses a 2.5 mm² cross-section to handle current without overheating.