MST290E-0018-FT-N0CN-NNNN Bosch Rexroth Indramat
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MPN: R911305050
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The Bosch Rexroth Indramat MST290E-0018-FT-N0CN-NNNN is a synchronous torque motor from the MST Synchronous Torque Motors series with a rated power of 10.80 kW and a rated torque of 575 Nm. It features liquid cooling, thermal encapsulation, and requires a coolant flow of 9.0 liters per minute. The motor delivers a maximum torque of 1150 Nm and has a stator mass of 25.1 kilograms.
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Product Description:
The MST290E-0018-FT-N0CN-NNNN is a frameless synchronous torque motor stator produced by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. As a direct-drive component, it mounts around a customer-supplied rotor and delivers low-speed, high-torque motion directly to indexing tables, rotary cutters, or winding mandrels without mechanical gearing. This topology avoids backlash and enables precise angle control in industrial automation cells where heavy inertia loads must be positioned smoothly and repeatably.
A peak torque of 1150 Nm is available for short acceleration bursts, while continuous duty is limited to 575 Nm at the rated operating point. At that point, the operating speed is only 180 rpm, so high torque is delivered at very low speeds suited for large diameters or high process forces. The motor windings generate that torque with a sensitivity of 16.40 Nm/A, so the drive can relate current directly to load demand. Rotor magnet geometry with 30 pole pairs improves encoder resolution and reduces cogging at low speed. Thermal encapsulation surrounds the copper to stabilize winding temperature and isolate vibration. The stator mass is 25.1 kg, the power leads have a cross-section of 6.0 mm², and they exit on the larger outside diameter of the stator for short cable routing. Electrical behavior is characterized by 9.1 mH of inductance and 1.6 Ω of phase resistance, which are used by the controller current loops.
Continuous operation involves 10.80 kW of electromagnetic power conversion, and heat is removed by a closed-circuit liquid cooling jacket integrated into the stator housing. To keep copper temperature within limits, a coolant flow of 9.0 L/min must be maintained, and this removes internal losses that reach 5.50 kW under full load. The liquid channel is formed directly against the encapsulated windings, which keeps thermal gradients small during operation. Because the electrical connection is on the stator side with the larger outside diameter, manifolds and hoses can be arranged without obstructing the mechanical interface.
