Product Description:

The MST530M-0009-FT-NZCD-2NNN torque motor is manufactured by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. It is a three-phase direct-drive unit supplied as an open kit, allowing builders to mount the stator and rotor directly into a machine frame. This arrangement eliminates belts and gearboxes, so backlash and routine wear are reduced in precision rotary applications. The motor is intended to generate high steady torque at low speed for automated presses, printing cylinders, and rotary tables.

The motor uses a liquid-cooled stator jacket, and coolant flow removes copper losses so continuous operation at a rotor temperature of 100 °C is permitted. Operating noise remains below <75 dB(A), which helps limit sound levels around the machine. Because the motor is delivered as an open kit, all live parts are exposed, and the protection classification is IP00. The machine structure must therefore provide guarding against accidental contact during operation. The electromagnetic circuit follows the three-phase synchronous motor principle, and coolant channels are sealed to the housing with a chemically resistant Viton O-ring to help prevent leakage when glycol-water mixtures are used.

Thermal supervision is provided by two embedded devices. Continuous winding temperature is measured by a KTY84-130 silicon sensor that draws only 2 mA and reaches about 1000 Ω of resistance at its high reference point. At ambient conditions it reads 577 Ω, giving the drive controller a clear reference for temperature compensation. For fault protection, the independent switch SNM.150.DK opens the power stage when the winding reaches 150 °C. This separate trip function provides shutdown protection even if the analog temperature signal drifts during sustained overload or loss of coolant.