Product Details:

REXROTH 0608820103 is a resolver feedback assembly for Bosch Rexroth modular servo nutrunner spindle, supplying analog rotor angle and speed signals for closed-loop tightening control. Resolver sensing structure delivers excellent vibration and dust resistance, suitable for harsh workshop environments with heavy mechanical shock. This spare feedback component belongs to the discontinued legacy tightening system, and most available units on the market are refurbished replacement parts for old automotive assembly lines.

This resolver assembly transmits sine and cosine analog signals to matched Rexroth tightening controller, cooperating with torque transducer to realize dual torque and angle supervision for bolt fastening. It supports common tightening strategies including torque control plus angle monitoring, and homing procedure is required after power cycle to establish angular reference. Separate signal wiring layout reduces electromagnetic noise interference inside industrial electrical cabinets equipped with inverters and switching modules.

This variant is a standalone sensing component without integrated motor or brake. It is installed between the servo motor and gearbox of the tightening spindle, adopting standard flange interface for direct replacement. The sealed housing reaches IP54 protection grade to resist workshop dust and incidental coolant splash. Optimized winding structure reduces signal distortion, maintaining stable angle measurement precision for safety-critical bolt joints under continuous cyclic load.

It works together with Rexroth tightening software for signal calibration, angle tolerance setting and fastening curve recording. Every finished resolver assembly passes factory validation before shipment, including signal amplitude test, angle linearity calibration, long-cycle vibration endurance test and temperature drift inspection to guarantee stable performance in multi-shift automated fastening production lines.

It is widely deployed on automotive powertrain tightening spindles, new energy battery module fastening equipment, material torque test benches and heavy machinery bolt joining stations. Typical application scenarios include spindle resolver feedback modules, torque-angle dual control assemblies, mixed-model assembly sensing components and static torque calibration platforms. Automation integrators select this Rexroth resolver assembly for its robust anti-shock performance, dependable analog feedback and seamless matching performance with Rexroth nutrunner control ecosystem.