MST290E-0018-FH-N0PU-NNNN

The MST290E-0018-FH-N0PU-NNNN by Bosch Rexroth Indramat in the MST Synchronous Torque Motors series features a robust Motor Size 290 frame with a Winding type 18 multipolar winding on a precision-laminated core engineered for superior torque density and minimal cogging torque. This design supports a strictly controlled Assembly Orientation Horizontal, ensuring precise stator-to-rotor alignment, minimized mechanical runout, and repeatable dynamic performance. An integrated aluminum stator-cooling jacket incorporating a Volume of Coolant Duct 0.55 l provides uniform heat extraction across all winding phases, preserving insulation life under high duty cycles. The compact yet rugged construction facilitates installation in direct-drive and rotary indexing systems, offering high mechanical rigidity and simplified mounting without external gearboxes.

Cooling is realized through a stable Coolant Flow Rate of 9 l/Min at a nominal Permissible Inlet Pressure of 3 Bar to maintain consistent thermal conditions, even under peak torque demands. The hydraulic circuit exhibits minimal resistance, indicated by a low Pressure Drop for Coolant Flow of 0.1 Bar, which reduces pumping losses and enables efficient coolant system sizing. The motor’s optimized thermal architecture limits the Rated Power Loss of 5.5 kW during continuous operation, while a Thermal Time Constant of Motor 3.3 Minutes allows rapid recovery of winding temperature after transient load changes. Generating a continuous Rated Torque of Motor 575 Nm, this torque motor delivers smooth, high-precision torque output over extended duty profiles without sacrificing energy efficiency.

This advanced liquid-cooled design combines substantial torque output and sophisticated thermal management, making the MST290E-0018-FH-N0PU-NNNN ideally suited for high-precision automation tasks such as direct-driven rotary tables, synchronized spindle drives, and multi-axis positioning systems. Its horizontal assembly orientation and integrated cooling jacket simplify integration, reduce system complexity, and lower total inertia for faster dynamic response. Overall, the motor’s robust construction, predictable thermal behavior, and gearless operation provide a reliable solution for continuous heavy-load applications in demanding industrial environments.