Single post tension hydraulic stressing jack
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 100t. Single post tension hydraulic stressing jack is a special tensioning machine that applies tension to the prestressed steel bars when making prestressed concrete members. Special hydraulic jacks are mostly double acting. There are two types of through-heart and cone anchor.
Single acting hydraulic cylinder has safe protect pressurizer, builtin pressure relief valve in order to protect overloading, and it is good for safe operate. All the model can be customized according to client's requirements, single acting hydraulic cylinder price is different for different models , single acting hydraulic cylinder price is reasonable and stable performance, it is mainly used for electric power, building, machine manufacturer, mining, subway, bridge and shipbuilding and kinds of industry for installing, lifting and tear down. Pay attention to these precautions when you use single acting hydraulic cylinder:
1) Before use, you must check whether all parts are normal, mainly check whether the piston, joints, high-pressure hoses are leaking.
2) When using single post tension hydraulic stressing jack, please strictly abide by the provisions in the main parameters, and avoid excessively high overload. Otherwise, when the lifting height or lifting tonnage exceeds the regulations, serious oil leakage will occur at the top of the hydraulic cylinder.
3) If the amount of oil in the manual hydraulic pump is insufficient, the hydraulic oil that has been sufficiently filtered must be added to the pump before it can work.
4) The center of gravity should be selected properly. The jacking point of the jack should be selected reasonably, and the bottom surface should be flat. At the same time, the soft and hard conditions of the ground should be considered, and the tough wood should be lined up. 5) After the jack lifts the weight, the support should be used to support the weight firmly.
6) If several jacks are required to lift at the same time, in addition to correctly placing the jacks, it should also be noted that the load of each jack should be balanced and that the lifting speed should be synchronized to prevent the lifted object from tilting and causing danger.
7) When using a jack, place the hydraulic cylinder first, and then tighten the drain screw on the hydraulic pump to work. To lower the piston rod, loosen the handwheel of the manual hydraulic pump slightly in the counterclockwise direction, unload the hydraulic cylinder, and the piston rod will gradually descend. Otherwise, the descending speed will be dangerous.
8) The split jack adopts a spring return structure. After lifting, it can be quickly taken out, but the connected hose cannot be used to pull the jack. 9) Because the lifting stroke of the jack is small, it must not exceed the rated stroke during use to avoid damaging the jack.
10) Avoid severe vibration of the jack during use (such as hitting the workpiece with a hammer when the jack is under load).
Single acting hydraulic cylinder price is reasonable, stable performance, long life, Single acting hydraulic cylinder is mainly used in power, construction, machinery manufacturing, mining, subway, bridge and shipbuilding and various industries for installation, lifting and disassembly,shipbuilding, metallurgy, petrochemical, railway Lifting, stretching, pressing and other operations in engineering and other industries.  
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