MST450E-0006-FT-N0RN-NNNN Bosch Rexroth Indramat
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MPN: R911306213
The Bosch Rexroth Indramat MST450E-0006-FT-N0RN-NNNN is part of the MST Synchronous Torque Motors series and features liquid cooling and thermo-encapsulation. It has a rated power of 8.8 kW, rated torque of 1400 Nm, and a maximum torque of 3250 Nm. The stator mass is 54.2 kg and it supports a maximum current of 88 A with a voltage constant of 3.86 V per min^-1.
Internal Product Review
The MST450E-0006-FT-N0RN-NNNN is a Bosch Rexroth Indramat synchronous torque motor with liquid cooling and thermo-encapsulation. Rated torque of 1400.0 Nm and rated power of 8.80 kW give the design impressive continuous performance in high-load servo applications. Maximum torque of 3250.0 Nm stands out as a key strength for demanding low-speed motion systems.
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Product Description:
The MST450E-0006-FT-N0RN-NNNN is a synchronous torque motor built by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. As a direct-drive stator section, it is intended to deliver high continuous torque at low rotational speeds for indexing tables, extruders, and printing cylinders in industrial automation. The unit ships as a frameless stator that pairs with a matching rotor to transmit torque without gear reduction, thereby improving positioning accuracy and lowering mechanical maintenance demands.
Performance limits include a maximum torque of 3250.0 Nm and a peak phase current of 88.0 A, which indicate the upper range for startup and transient loads. During continuous operation, the motor produces 8.80 kW from a rated torque of 1400.0 Nm at a rated mechanical speed of 60 rpm. These values are sustained with liquid cooling that circulates through the housing and keeps winding temperature within class limits. Electrical power arrives through a radial cable with a larger outer diameter, and its copper conductors occupy 6.0 mm² per phase to minimize voltage drop. The rated current of 32.0 A aligns with standard drive inverters, and the winding resistance of 3.2 Ω at 20 °C governs steady-state losses.
The maximum mechanical speed is 120 rpm, so position controllers can program rapid index moves before settling at process speed. Each ampere of drive current yields 43.80 Nm/A, allowing closed-loop torque regulation with fine resolution. Electromagnetic behavior is further shaped by an inductance of 30 mH, which helps filter current ripple, and the back-EMF constant is 3.860 V per rpm, which the converter must counteract at higher speeds. The stator weighs 54.2 kg, and this mass stores thermal energy while helping damp vibration in the machine frame. Thermo-encapsulation seals the windings against moisture, and liquid passages route coolant directly along the lamination stack to support insulation integrity under continuous duty.
