Abstract: Several problems appeared in the company's roller press including the roller bearing temperature is high, side baffle jacking device is highly failed, the extrusion area of side baffle is frequently damaged, the slide valve switch of the roll in press is stuck. Through adding water cooling device on the roller bearing seat, optimizing the side baffle jacking device and extrusion zone structure, transforming the single hydraulic push rod of slide valve switch into double push rod and other technical measures, the operation reliability and work capacity of the roller press are greatly improved.