In the design of roller crushers, two opposing and synchronously rotating rollers form a roller-to-roll crushing chamber, which applies high-pressure continuous compression crushing to the material between the roller gaps. Experts from Xinshengrun Company point out that when operating in the roller-to-roll crushing chamber, to achieve adjustability of the roller gap, the two bearing seats of one fixed roller should be fixed to the frame, while the other roller is not fixed. The moving roller has an adjustable distance, allowing it to continuously compress and crush the material during its reciprocating motion.

Our company’s experts, combining the crushing mechanism of today’s advanced MMD crushers, will design a crushing chamber consisting of rollers facing each other. Double-roll crushers operate by the squeezing and grinding action of two large-diameter rollers on the material. Double-roll crushers cannot be used for coarse crushing or secondary crushing operations because their ability to crush ore materials is limited. Therefore, this equipment is mostly used for fine crushing with lower output. The surface wear of the rollers is extremely severe. Therefore, the roller structure can be optimized. The specific solution is:

1. Design one roller as a grooved roller. In this way, the traditional roller and the grooved roller form a crushing chamber. Large pieces of material are first crushed by the squeezing action between the opposing rotating rollers and by the shearing action between the roller and the groove, completing the entire crushing process.

2. Design both rollers as grooved rollers to form a double-grooved roller system. The entire crushing process can be divided into two stages: In the first stage, large pieces of material are sheared and crushed into smaller pieces by the opposing and staggered grooves; in the second stage, the smaller pieces of material fall back into the grooves and continue to rotate in opposite directions by the rollers between the grooves. During this process, small sharp teeth apply pressure to the material, ensuring that the material reaches the desired particle size, thus completing the entire crushing process.