Product Details:

REXROTH 1070077920-GA1 is a cabinet-type power supply unit designed for Bosch Rexroth legacy servo nutrunner tightening controller. It converts AC mains input into stable, regulated DC power, supplying power to the control logic board, servo drive and torque-angle measuring sensors of the fastening station. This legacy power module is out of serial production, and most available products are refurbished spare parts for maintenance of existing automotive fastening lines.

This power module is equipped with built-in EMI filter to suppress conducted interference on the power line, avoiding signal disturbance and torque measurement fluctuation caused by inverters and other workshop equipment. It supports continuous operation during repeated fastening cycles and works with spindle, torque transducer and angle feedback components to realize torque-angle dual closed-loop fastening control. It has no built-in motor, transducer or drive circuit.

This variant is standalone power supply assembly. It is installed inside the electrical control cabinet of the nutrunner station. The circuit integrates overvoltage, overcurrent and overtemperature protection functions to protect the downstream fastening control components from damage under abnormal conditions. The metal housing reaches IP54 protection grade against dust inside the cabinet and accidental liquid splash. Optimized heat dissipation structure ensures stable output under long-time high-cycle mixed-model production.

It can cooperate with Rexroth tightening software for system debugging and production data recording. Every finished power supply passes factory inspection including output voltage accuracy test, load stability test, temperature drift test and vibration endurance test to guarantee reliable operation in multi-shift automated fastening production lines.

It is widely deployed on automotive powertrain assembly stations, new energy battery module fastening lines, multi-spindle tightening cells and static torque calibration benches. Typical application scenarios include controller power supply modules, nutrunner system power assemblies, spare replacement parts for old fastening stations and industrial regulated power units. Automation integrators select this Rexroth 1070077920-GA1 power supply for its low ripple output, complete protection functions and seamless compatibility with Rexroth nutrunner tightening ecosystem.