The company can make performance improvement for users using internal expansion pile hoist and provide testing and third-party certificates.

Internal expansion pile hoist includes driving cone, cylindrical tube,  cylinder head, guiding cone, balancing boom, inclined expansion block etc. After structural modification, work ability can be improved. It is suitable for maximum pile diameter of 124 inches and pile lifting capacity of 12000kN.

Pile hoist testing bench consists of three parts: loading components, load-bearing components and sample piles. Hydraulic system drives hydraulic cylinder that pushes the load-bearing part to apply horizontal or vertical force on pile hoist.

       Main technical specifications:

       Maximum sample pile size ：124 in

       Longitudinal working load ：12000 kN

       Lateral working load ：6000 kN