Hydraulic Bottle Jack is divided into two types: general purpose and special type.
Special hydraulic jacks enable special tensioning machines to exert tension on prestressed steel bars when making prestressed concrete members. The special Hydraulic Jack is mostly double acting type. There are commonly used through type and cone anchored two.
Jacks for tensioning steel beams or steel beams, which is mainly composed of the tensioning cylinders, the top pressure cylinder, top pressure piston and spring etc. It is characterized by: a machine axis along the stretch through the pore, steel (or steel wire) penetrated by the tool after anchor tail.
