Hydraulic tensioning machine；Hydraulic tension jack;Tensioning machine

Hydraulic tension jack is a machine used to apply predetermined tensile force to steel bars during the production of building prefabricated components, ensuring the tensile stress meets design requirements. It is employed in various prestressed construction methods—including pre-tensioning and post-tensioning systems—for structures such as bridges, tunnels, hydroelectric dams, water conveyance channels, buildings, and steel components.