Full definition
Tensioning system using PLC-controlled hydraulic cylinders to precisely regulate belt tension in real time according to conveyor load. Used in high-power conveyors (>500 kW) and open-pit mining. Allows automatic adjustment during starting, steady-state operation, and stopping. Brands: Voith, Rexnord. More expensive than screw or gravity take-ups but extends belt life by preventing over-tension during starts and under-tension during high-load peaks.