The synchronization of the hydraulic cylinder of the trailer drillingtower is related to the stability,safety,and service life of the trailer drilling equipment during construction.During the production and manufacturing process,some methods need to be used to ensure the stability and reliability of the tower and the falling tower.This article takes the HXY-800QT trailer drill produced by our company as an example to introduce the reasons for the asynchronous hydraulic cylinder,as well as the experience summary and assembly precautions in the production and manufacturing process,Provide some reference for the future development of trailer drilling in the geological exploration industry.