Product Description:

The MLP140A-0120-FS-N0CN-NQNN is a primary section linear motor produced by Bosch Rexroth Indramat as part of the MLP Synchronous Linear Motors series. It serves as the active thrust element in automated gantries, pick-and-place heads, and precision tables, converting drive current directly into linear motion without belts, screws, or gearboxes. Eliminating mechanical conversion stages reduces backlash and supports the high acceleration and positioning accuracy required in modern assembly, packaging, and machining cells.

It supplies a continuous thrust of 1680 N, while a peak thrust of 5200 N handles short acceleration bursts before duty-cycle limits apply. A force constant of 138.50 N/A links current to linear force, so the coil draws a rated 12.1 A during normal motion and can momentarily accept 70.8 A during overload events. Liquid cooling removes 1300 W of loss power, with coolant flowing at 1.9 l/min, a 10 bar inlet pressure, and a 0.6 bar pressure drop. Inductance is 23.1 mH, and magnetic attraction toward the secondary reaches 7500 N. Cables exit through the front, standard encapsulation protects the windings, and at full thrust the carriage is limited to 120 m/min to keep flux within safe limits.

The motor has a nominal travel rate of 190 m/min. Its back EMF constant is 79.9 Vs/m, which the drive must account for during dynamic braking. The thermal time constant is 2.4 min, so the motor responds quickly to changing duty cycles. Phase resistance is 4.3 Ohm at 20 °C, which affects copper loss and current-loop tuning. Frame size 140 and length code A set the mechanical envelope, while the absence of an encoder requires external position feedback. Liquid passages keep inlet pressure stable, allowing the motor to maintain nominal velocity without mechanical transmissions.