Product Description:

The MLP300B-0070-FS-N0CN-NNNN linear primary section is produced by Bosch Rexroth Indramat and belongs to the MLP Synchronous Linear Motors series. Acting as a moving coil assembly that glides over a toothed secondary rail, it converts drive current directly into thrust for gantry axes, high-speed pick-and-place units, and other industrial automation applications where accurate, fast linear positioning is required. The direct-drive principle eliminates gearboxes and ball screws, so force is generated along the stroke with minimal mechanical complexity.

With a continuous nominal thrust of 5150 N, the unit maintains steady process force when its integrated jackets circulate coolant. The cooling method is Liquid Cooling. The motor draws a phase current of 28.4 A at that operating point, and the copper windings exhibit 2.2 Ω of resistance at 20 °C, limiting thermal losses. A back-EMF coefficient of 104.8 Vs/m couples speed to induced voltage, while a 181.6 N/A force constant relates amplifier current to linear thrust. Inductance of 12.0 mH shapes current ripple, and the 37.5 mm pole width sets the magnetic pitch that matches the B-length element and size 300 frame. Electrical power and temperature sensors are wired through the front face, and the windings use a standard encapsulation method.

Dynamic moves are supported by a peak thrust of 16300 N, while magnetic attraction to the reaction plate reaches 23400 N, so mounting parts must withstand these loads. Short bursts can be supplied with phase current up to 141.9 A before the drive returns to continuous ratings. The assembly reaches its nominal traverse speed of 140 m/min, but velocity is limited to 70 m/min when operated at full rated force. The design includes no encoder, so external feedback devices are required for position control.