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Post tension hydraulic jack is mainly applied in group anchor stressing, pushing and lifting, and is widely used in post-tensioned large buildings and structures, prestressed concrete bridges and other great projects. This type prestressing hydraulic jack also easy to hoist, durable in use, easy to operate and convenient to maintain.
Post tension hydraulic jacks are advanced devices based on their former structures, redesigned with high-strength steel, advanced structures, sealing function, optimization technology. This new type features tight structure, lightened weight, short axial length, stands saving by shoort reserved length in prestressing strand anchorage. The results of test shows its perfect performance, durability, flexibility of lifting, convenience of using and preparing. It can be used in pre-tensioning and post-tensioning. With different attachments, respectively tensioning, clip group anchor, DM, LZM anchorage, etc.
Prestressing hydraulic jack with good performance small, light weight, good sealing, high strength and reliability. Equipped with different accessories, it can tension multi-strand anchorage and various of anchor. Main parts of hydraulic jack 1000 ton is made of high-strengthened steel and it features in compact structure, small weight and small size, short axial length and short length of preserved stretching steel strand, which can saving many steel strand materials. It is also easy to hoist, durable in use, easy to operate and convenient to maintain.
Post tension hydraulic jack for prestressing is a specialized machine for prestressing engineering. It can be applied both to pre-tension and post-tension project. Using different models, you can simultaneously stretch a bunch of 2 to 22 strands. The nominal tensile force is 65t up to 1000t. Our prestressing hydraulic jack is a product by our independent research and development. After tens of years’ improvement, it is compact in size, smooth and steady while working, and very reliable in leak tightness and service life. The prestressing hydraulic jack is powered by our ZB series high-pressure electric oil pump.
Considering the loss of tensile force by resistance, the prestressing hydraulic jack outputs about 95% of nominal tensile force. If the jack needs strict and continuous working, we recommend higher nominal tensile force than the load, by about 20%. The diameter of center hole shall be 17mm larger than the outer circle of taper holes. In order for your convenience, we made a table of model selection for stretching 1860Mpa Ø15.24mm strands at 0.85Fptk tensile force.
Hydraulic jack refers to a jack that uses a plunger or a hydraulic cylinder as a rigid jack. It has the characteristics of compact structure, stable work, large support force and self-locking. The hydraulic jack has a strong supporting ability, and the heavy hydraulic jack has a supporting force of more than 1000t.
