This bundle combines the spring balancer suspension with reliable detection of the parking position of the carbo-arm extension. This makes it easy to integrate the carbo-arms into automation processes. Spring balancer suspension The spring balancer is mounted to the adjacent structure using a retaining plate and carabiner and additionally secured with a safety rope. Parking position detection An adjustable buffer on the spring balancer rope actuates a shift flag in the parking position, which then reliably dampens an inductive proximity switch. Suitable for roller-units and carbo-arms with vertical spring balancer suspension. Inductive proximity switch (Balluff or ifm) Detects metallic objects contactlessly and reliably transmits the signal via a PNP normally open output. Suitable for D30 clamping brackets.