Vertical Shaft Crushers (VSI) produce high quality aggregates while providing low consumable costs thanks to its working principle. It is highly preferred in aggregate production, especially when cubic material is desired. They take part in the tertiary stage in the crushing and screening processes. It produces highly thin material.
There are two different designs of the crushing chamber. Stone cushioning arrangement with closed rotor is the most used type. This design is used for breaking harder and highly abrasive materials. The maintenance cost is very low.
The other type is the open rotor and armor ring cushioning arrangement. This type of design is used for breaking soft and low-abrasive materials. The size reduction rate is high. The production rate is high. Larger materials can be fed according to the closed rotor design.
The working principle of vertical shaft crushers is based on crushing the fed stone by striking it with the fed stone. It is exposed to a high amount of centrifugal force by the contact of the stone fed from the circular inlet with the rotor rotating at high speed. With the effect of this force, the stone thrown out of the rotor into the crushing chamber collides with the material fed into this chamber in the form of a waterfall. It transfers the kinetic energy created by the centrifugal force to the material fed here as an impact force and crumbling occurs with the effect of this force.