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300 ton double acting hollow hydraulic jack

300-ton double-acting hollow hydraulic jack combines all the design features of single-acting and the superiority of double-acting design, thereby improving the operation and use speed, especially in the relatively long stroke operation. The 300-ton double-acting hollow hydraulic jack has a through a hole in the piston center, which is widely used in nuclear power plants, tunnel engineering, underground engineering, construction and other occasions to realize the pre-tightening process, and can also be used in other similar needs.

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The 300-ton double-acting hollow hydraulic jack can be equipped with a two-way manual oil pump or a two-way electric oil pump. Because of the through hole in the middle, the hollow jack not only has the lifting capacity of a general hydraulic jack but also has the stretching and tensioning functions that the ordinary jack does not have. The through hole allows cables, steel ropes, and other shafts to pass through.

Double acting hollow plunger lifting hydraulic jack
Double acting hollow plunger lifting hydraulic jack

The hollow roof has double functions and hydraulic retraction. The 300-ton double-acting hollow hydraulic jack is the first choice for various large-scale projects. It has the characteristics of convenient operation and control. The new technology and structure make hollow roof jacks safer and last longer.

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