Product Details:

REXROTH 109-0943-3801-05 is a fully pre-assembled shielded signal cable for Bosch Rexroth legacy modular servo nutrunner spindle, dedicated to transmitting resolver or incremental encoder angle feedback signals between the spindle feedback assembly and the tightening controller. This spare cable belongs to the discontinued tightening technology series, and most available stock are refurbished replacement harnesses for maintenance of old automotive fastening stations.

This signal cable transmits differential pulse or sine/cosine analog angle signals, cooperating with torque transducer to realize dual torque-angle closed-loop supervision for bolt fastening sequences. It supports common tightening modes including torque-controlled tightening plus angle monitoring and yield point detection. The overall shielded structure effectively suppresses electromagnetic interference from inverters and workshop equipment, avoiding signal loss and angle measurement deviation during repeated fastening cycles. It is only for signal transmission, without built-in power core, motor or sensor.

This variant is standalone signal wiring assembly without integrated holding brake. It is installed inside the modular spindle unit or control cabinet routing, matched with standard Rexroth feedback connector interfaces for direct replacement. The cable outer jacket is made of oil-resistant and wear-resistant material, suitable for workshop environments with coolant splash and repeated bending motion. The internal twisted-pair layout reduces signal crosstalk, and the connector tail is equipped with strain relief to prevent wire breakage caused by vibration and cyclic movement. Properly mated connectors reach IP54 protection grade against dust and incidental liquid splash.

It works together with Rexroth spindles, transducers and controllers, supporting fastening curve recording and production data traceability via Rexroth tightening software. Every finished cable assembly passes factory validation including continuity test, insulation resistance test, shielding performance check and bending cycle endurance test to guarantee stable signal transmission in multi-shift automated fastening production lines.

It is widely deployed on automotive powertrain tightening stations, new energy battery module fastening lines, household appliance bolt joining fixtures and torque calibration test benches. Typical application scenarios include spindle angle feedback wiring assemblies, torque-angle dual control signal harnesses, mixed-model fastening spare cables and renovation wiring for old nutrunner systems. Automation integrators select this Rexroth signal cable assembly for its stable pulse transmission, reliable shielding performance and seamless matching with Rexroth nutrunner tightening ecosystem.