1MS312B-4A-A1

1MS312B-4A-A1, Bosch Rexroth Indramat, 1MB High-Speed Asynchronous Motors is a precision-engineered stator component designed for the high-performance 1MB liquid-cooled motor range. This unit features a frame length of Motor Length: B, a frame size of Motor Size: 312, and a winding configuration of Windings Code: 4A. The stator is housed in a rugged aluminium cooling jacket that interfaces directly with the liquid coolant circuit, ensuring efficient heat dissipation under continuous load. Integration of the stator into 1MB machines provides exceptional power density, making it ideal for demanding applications in processing centers, grinding and milling spindles, and transfer line drives.

Detailed specifications include a liquid-cooled design rated for continuous operation within defined ambient parameters, maintaining optimal temperatures by transferring heat into a secondary refrigeration loop. Electrical connection is via a robust 1.5 meter cable attached at the stator end with the larger output diameter, permitting secure wiring and ease of installation. The aluminium cooling jacket material delivers high thermal conductivity, while the stator core laminations minimize eddy-current losses for maximum efficiency. Warranty coverage extends for one-year from the date of shipment, subject to correct assembly, installation, and operational conditions as per the product documentation.

Engineers benefit from the stator's seamless integration with compatible drive controllers, which must be programmed according to the motor's parameters prior to startup. The 1MS312B-4A-A1 stator's reliability is underpinned by strict quality controls and maintenance guidelines, ensuring long service life in high-speed machining environments. When paired with the matching rotor, this stator unlocks the full potential of the 1MB motor series, delivering precision torque, minimal vibration, and exceptional thermal stability for advanced manufacturing applications.