Product Description:

The MST530E-0010-FH-NNKR-NNNN is a frameless synchronous torque motor produced by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. Designed for direct-drive rotary tables, extruders, and other low-speed axes, the unit delivers high continuous torque without mechanical gearing, which helps reduce backlash in automated machinery. This capability makes it well suited for precision positioning and constant-tension duties throughout industrial automation processes.

During continuous duty, the motor outputs 19.80 kW of shaft power while drawing a nominal current of 64.0 A. This rating corresponds to a speed of 90 rpm and a shaft torque of 2100 Nm, making the motor suitable for low-speed, high-torque operation. The torque constant is 32.80 Nm/A, so closed-loop drives can estimate electromagnetic torque from phase current with good linearity. At 20 °C, the back-EMF factor is 2.090 V/rpm, and the three-phase winding resistance is 0.59 Ω, which affects voltage demand and copper losses. Liquid cooling is routed through a jacket integrated into the housing, and the stator is encapsulated to promote heat transfer and help prevent moisture ingress. An aluminum terminal box on the right side provides the power connection, and 16.0 mm² copper conductors are recommended for the incoming phases.

Dynamic overload capacity extends to a standstill torque of 2400 Nm and a peak torque of 4700 Nm when the inverter supplies up to 212.0 A for short intervals. Maintaining thermal limits under these peaks requires a coolant flow of 9.5 L/min; that rate supports the 116.0 kg stator mass by removing waste heat through the integrated jacket. The internal coolant circuit eliminates the need for external blowers, which lowers acoustic output, and the housing design helps isolate the windings from process contaminants.