the abus hb-system is a modular designed crane system with load capacities up to 2 t swl. the system can be adapted to the conditions and dimensions of almost any application and reliably mounted on a wide range of differ......the abus hb-system is a modular designed crane system with load capacities up to 2 t swl. the system can be adapted to the conditions and dimensions of almost any application and reliably mounted on a wide range of different ceilings can easily be extended any time allowing it to grow with your business.