Rotatable bolts are intended to improve load transport in overhead conveyor systems.

RK Rose+Krieger GmbH has developed a load trolley for overhead conveyors that can transport loads of up to 30 kilograms. According to the manufacturer, the three-part construction is based on components from the modular system for pipe connection technology. Specially processed pipe connectors and pivot-mounted bolts are said to enable movement of the construction in curves.

Overhead conveyors transport goods without floor contact and can automate material flows over longer distances. In doing so, the suspensions must also be aligned with the load distribution of the conveyed goods in curves. For this requirement, RK Rose+Krieger combines standard components of its pipe connection technology with application-specific processed parts.

Three-part design for loads up to 30 kilograms

The load uptake of the trolley consists of a steel tube. This hangs on two intermediate trolleys, each with a shorter aluminum tube. Each of the two intermediate trolleys is guided by four wheels on the overhead conveyor.

Aluminum bolts in the connectors of the steel tube take on a central function. According to the report, the manufacturer designed these components for the torsional forces of the conveyed material. To achieve this, the company machined the bores of the tube connectors by cutting. This resulted in a rotatable mounting of the bolts.