hydraulic jacks have strict requirements for jacks in bridge synchronous lifting projects

qingfeng hydraulic jacks have strict requirements for the jacks in the synchronous lifting project of bridges. the first requirement is the quality, whether the cylinder body can withstand the weight of the bridge. therefore, we need to choose a manufacturer with business qualifications to purchase the jacks we need. secondly, during the overall lifting process of the bridge, it is often accompanied by the opening of the road, and the stroke of the jacks we choose is often very low - thin jacks. after selecting a high-quality ultra-thin hydraulic jack, we need to install it on the pier column or other load-bearing foundation of the bridge. this process is also a meticulous process. we need to have an understanding of the bearing capacity of the foundation column. sometimes, we cannot install ultra-thin jacks on the piers of the bridge. we must choose a foundation that can withstand a large thrust. when the bridge is lifted as a whole, its bearing capacity generally reaches the level of thousands of tons. under such heavy loads, we need to set up a connection structure between the jack and the pier foundation. to protect the direct wear between our jack base and the cement structure, we need to insert a metal block at the bottom of the ultra-thin hydraulic jack. on the one hand, it can withstand the overall force between the jack and the cement pier, and on the other hand, it can prevent damage to the cylinder body of the jack during operation. when using a synchronous lifting system for bridge jacking, the placement and quantity of points will be determined based on the weight and area of the bridge. at that time, up to dozens of jacks will be lifted synchronously, controlled by a plc computer to maintain an error within 0.5mm.