It is composed by a double girder supspention crane and a special stacker trolley. It is very suitable to transport, sort, store and access; esp, for the Piece cargo, vessel, stacking pallet, etc. KBK stacker crane can fully make use of the indoor height to make the instock, outstock, trasportation and access into one work process; do not need the ladder, forklift, and any other assitant tools.

1.Good reliability and high stability
      The components comprising 4S light crane system are all standard modules, which ensures batch and high-quality production and thus,the system is very reliable for the main body of the system module consists of three types of cold-rolled section steel of high strength, good rigidity, light self-weight, which ensures the stability of the system.
2.Good adaptability
      4S system makes it possible to flexibly design and install the crane system in accordance with the individual work positions of the factory.from chosen spot conveying to highly accurate multi-spot or multi-beat automatic comveying line, free combinations are possible. it is appilcable to both newly desighed workshop and the rebuliding or extension of the old system.
3.Easy installation and economic & high effciency
      4S system enjoys very convenient installation and debugging. The connection between the 4S section material and individual standard modules can be made only with bolts. With 4S system, the factory can save the space and area.reduce the energy consumption and thus raise the benefit of the enterprise. The system may be operated manually. Automatically or semi-automatically with high efficiency. The design of 4S system meets the stipulations specified in the document of the ministry of labor of our country such as safety specifications for hoisting machinery and the document issued by the ministry of machinery industry like design specifications for cranes, which ensures safe use and long working life.