The cone crusher was invented at an early stage and has gradually matured. Nowadays, it is developed with new technologies, featuring optimized crushing cavity, strong crushing capacity and low operating cost. It is suitable for medium and high hardness stone materials for secondary and fine crushing. But how to adjust the discharge size of a cone crusher? This article answers this question and provides information about cone crusher models, capacity and prices.
### I. How to adjust the discharge size of a cone crusher?
What are the methods to adjust the discharge size of a cone crusher? There are multiple ways to adjust the discharge grain size. Cone crushers are divided into five categories: spring cone crusher, compound cone crusher, full hydraulic cone crusher, multi-cylinder hydraulic cone crusher and single-cylinder hydraulic cone crusher. Each type has structural differences, so their discharge opening width and adjustment methods vary. Details are as follows.
Generally, the discharge opening size of the crusher changes with the lifting and lowering of the adjusting sleeve inside the support sleeve. When rotated clockwise, the adjusting sleeve moves down and the discharge opening becomes smaller; when rotated counterclockwise, the adjusting sleeve moves up and the discharge opening becomes larger.
1. For spring and compound cone crushers, the discharge opening is adjusted by manually tightening the adjusting cap to reduce the gap between the concave and mantle. Its discharge opening adjustment range is 3–51 mm.
2. The discharge opening adjustment range of full hydraulic cone crusher is 3–64 mm, while that of multi-cylinder hydraulic cone crusher is 5–51 mm. Both rely on push cylinders to adjust discharge opening, with differences only in automation level.
3. The single-cylinder cone crusher has a discharge opening adjustment range of 4–41 mm. It adjusts the discharge opening through the hydraulic cylinder at the bottom driving the mantle to lift and lower.
### Criteria for adjusting the discharge opening of cone crusher
There are evaluation criteria. The discharge opening size depends on the required product grain size. When adjusting the adjusting sleeve, the gap between the closed side and crushing liner shall be slightly smaller than the target product grain size. Adjusting the sleeve can also compensate for wear of the mantle and concave to guarantee consistent product particle size.
