- it is installed in a WWTP as the first equipment designed for extraction of grit and coarse sand.
- TSP variant includes the extraction of grit and sand using a pillar with a swing boom and a suspended clamshell grab. If equipped with electrically swung boom, it is delivered with control panel.
- VSP variant fulfils the function of grit and sand extraction using traveling grab suspended on a rail supported by two or more pillars. It is delivered with a switch box.
- electrical travelling of suspended grab is connected with hydraulic drive for its opening and closing.
- TSP and VSP in modified version with a special extension have wider range of application, e.g. lifting of pumps from shafts or collection of fats and substances floating on surface.