MST530F-0027-FT-N0CN-D303 Bosch Rexroth Indramat
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MPN: R911399388
The Bosch Rexroth Indramat MST530F-0027-FT-N0CN-D303 is part of the MST Synchronous Torque Motors series and features liquid cooling with an aluminum cooling jacket. This motor has a rated speed of 270 rpm, cable exit on the stator side at the larger outside diameter, and uses thermal encapsulation.
Internal Product Review
The MST530F-0027-FT-N0CN-D303 is a Bosch Rexroth Indramat synchronous torque motor with liquid cooling and a 540 VDC reference DC bus. Stator-side cable exit and an aluminum cooling jacket support clean integration and dependable thermal management in direct-drive applications. A 270 rpm rated speed and encoder-free configuration make the motor a strong choice for streamlined torque-axis designs.
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Product Description:
The MST530F-0027-FT-N0CN-D303 is a direct-drive torque motor produced by Bosch Rexroth Indramat for the MST Synchronous Torque Motors series. As a frameless stator-rotor set intended for integration into machine frames, it delivers high continuous torque at low rotational speeds. Within industrial automation, such motors eliminate mechanical gear stages, allowing precise positioning and smooth force delivery in rotary tables, printing cylinders, and forming presses. The motor interfaces with an external drive that regulates current through a DC bus supplied by the plant’s power conversion equipment. This direct-drive arrangement can also reduce backlash that would otherwise be introduced by intermediate transmission components.
It operates at a rated speed of 270 rpm, a value selected to support high torque output without mechanical transmission losses. The drive stage references a DC link of 540 VDC, so insulation and winding design are matched to that voltage class. Heat generated in the windings is removed through liquid cooling, and the stator jacket is machined from aluminum, a material that promotes rapid thermal conduction to the coolant stream. To prevent voids and improve dielectric strength, the windings are set in thermal encapsulation. This cooling and insulation arrangement supports steady operation in machines that spend long periods under load at low speed.
Mechanical integration is simplified by mounting holes tapped with a M10, 23 mm deep fastening thread, allowing the stator to be secured to a machine frame from either face. Power and coolant conduits exit on the stator side, specifically on the larger outside diameter of the housing, so cable routing can follow the machine’s radial contours. Because the motor is supplied without encoder, position feedback must be furnished by an external sensor on the driven axis. The stator side cable path reduces bend stress on leads during index cycles. This layout can also help keep hoses and conductors clear of rotating machine elements during operation.
