Product Description:

The MLP140C-0120-FS-N0CN-NNNN is part of the MLP Synchronous Linear Motors series produced by Bosch Rexroth Indramat. This size 140 synchronous linear motor segment converts electrical current directly into linear thrust, which removes the need for mechanical transmissions in gantry robots, pick-and-place units, and high-speed machining axes. Integrated liquid channels remove heat so the unit can maintain constant force while operating inside enclosed automation cells.

The segment delivers a continuous thrust of 3150 N when its three-phase windings are supplied with the rated current of 20.7 A. A force constant of 152.60 N/A links these values, and the winding resistance of 2.55 Ω determines the voltage drop at this load. During acceleration, the drive can raise phase current to a peak of 122.9 A, allowing the motor to use the 14,400 N attractive holding force without reaching magnetic saturation. The generated back EMF has a voltage constant of 88.1 Vs/m, which the servo amplifier uses to regulate its field-oriented control loops. To remove the associated copper losses, the internal liquid circuit requires a flow of 2.9 l/min, and inlet pressure must remain below the 10 bar limit of the stainless manifolds. Wire leads exit through the front of the housing, and standard encapsulation isolates the coils from the coolant.

Thermal management must account for a steady dissipation of 2000 W while the mover supplies the application-rated force of 10000 N. Under this load, the stage can still reach a traversal speed of 120 m/min, while lightly loaded moves may approach the nominal 190 m/min value. The electrically short windings have only 13.0 mH of inductance, so current transitions follow command changes quickly. Pole width is 37.5 mm, the power conductors use a 2.5 mm² cross section, and because no encoder is installed, external position feedback is required.