Impact Crusher

Discover how impact crushers, with their high reduction ratios and capacity to generate cube-shaped products, have transformed the crushing process.

How does a Impact Crusher Work?

The two main types (horizontal-shaft and vertical-shaft impactors) are characterized by a high reduction ratio and cube-shaped product. The impactors can also be used for selective crushing, a method that liberates hard minerals from the waste material. The impactor consists of a steel plate body containing a shaft and rotor assembly. The number of moving parts is quite small.

Types of Impact Crushers

Horizontal-shaft Impactors (HSI)

The feed material is crushed by highly intensive impacts originating in the quick rotational movement of hammers/bars fixed to the rotor. The particles produced are then further crushed inside the crusher as they collide against crusher parts and against each other, producing a finer, better-shaped product.

Vertical-shaft Impactors (VSI)

The vertical-shaft impactor works similarly to a centrifugal pump, often known as a “stone pump”. Material enters the rotor through the center and gains velocity before being ejected through apertures on the rotor's periphery. These machines excel in reducing wear costs by crushing the outer body with high-speed impacts and using rock-on-rock action.

VSI impactors, which use the autogenous principle, are widely used in the manufacturing of fine materials, such as sand, and assure a good cubical shape.

Recycled Aggregates in Construction

We use crushing machinery to break down huge chunks of ore and rock into smaller, more manageable bits so that they can be further processed. The crushed material is next sifted through using screening machinery, which separates valuable minerals from waste and allows them to be reused or sold.

Similarly, in the construction business, crushing and screening equipment are essential for managing debris and unusable materials such as concrete, asphalt, wood, and metal. These materials can be crushed and screened to produce recycled aggregates for use in new building projects, reducing the demand for virgin materials and minimizing production-related carbon emissions.