Large Tonnage Post Tension Jack Bridge Construction Machine With Multiple PC Strands

Features of Muti-Strands Post-Tension Jack

1. The muti-strands post-tension jack is a special tensioning jack used for tensioning steel strands and other prestressed tendons. Generally, it needs to be used in conjunction with the tensioning oil pump. The power for tensioning and returning to the top is provided by the high-pressure oil of the tensioning oil pump. According to the different structures, it is divided into front card tensioning jack and through-center tensioning jack.
2. The tensioning jack has a compact structure, stable operation during tensioning, high oil pressure, large tensioning force, large-span structure, long wire bundles, etc. Tension construction projects such as hydropower dams and high-rise buildings.

Operation Notes of Post Tension Jack

1. If there is a runaway phenomenon during use, you can first loosen the oil drain screw on the pump body, lift the pump body upright and head down a few times, and then tighten the oil drain screw, you can continue to use.
2. When there is a load, do not remove the quick connector to avoid accidents and damage to the parts.
3. The machine uses oil as the medium, and the maintenance of the oil and the machine must be done well to avoid blockage or oil leakage, which will affect the use effect.
4. For a new or long-established hydraulic jack, because there is a lot of air in the oil cylinder when it starts to use, the piston rod may have a small sudden jump. The hydraulic jack can be reciprocated 2-3 times without load to eliminate air in the cavity. The jack that has been idle for a long time will be hardened due to the long-term non-working of the seal, which will affect the service life of the hydraulic jack. Therefore, when the hydraulic jack is not in use, the hydraulic jack should be reciprocated 2-3 times a month with no load.