Crushers or rock crushers are machines used to reduce the size of rocks and stones in aggregates production, construction material recycling applications, and in mining operations. Every crushing plant and crushing process has its own requirements and demands. K&W Mining Machinery has designed, engineered and manufactured crushers for more than 100 years. Our offering covers different jaw crushers, gyratory crushers, cone crushers, and impact crushers ĘC optimized for any size reduction need. Many of the crushers are available not just as stationary units but also as portable and mobile versions.

What is the meaning of crusher?

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. ... The earliest crushers were hand-held stones, where the weight of the stone provided a boost to muscle power, used against a stone anvil. Querns and mortars are types of these crushing devices.

What are the types of crushers?

Types of Crushers. Crushers may be divided into three general classes, with respect to the manner in which they do their work: Pressure Crushers: This category embraces the several types of gyratory crushers and jaw crushers, as well as the double crushing rolls, with either smooth or corrugated shells.

What is jaw crusher used for?

A Jaw Crusher reduces large size rocks or ore by placing the rock into compression. A fixed jaw, mounted in a "V" alignment is the stationary breaking surface, while the movable jaw exerts force on the rock by forcing it against the stationary plate.

How does a rock crusher work?

A rock crusher is a device used to crush rocks into smaller pieces, usually for gravel or some other road or building application. ... Once a rock has been pressed into small enough pieces to fit through the hole, it exits the crusher either onto, a conveyor belt, into a bin or onto a large pile.

What is crushing and grinding?

A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting. ... For instance rock crushing or grinding to produce uniform aggregate size for construction purposes, or separation of rock, soil or aggregate material for the purposes of structural fill or land reclamation activities.

What is the difference between a jaw crusher and a cone crusher?

The jaw crusher is normally used as primary crusher. It is mostly suitable for hard materials and the wear cost are lower than the impact or cone crusher. ... The main difference is that you can get bigger productivity with the cone crusher by lower materials size as with the jaw crusher.

What is gyratory crusher?

A Gyratory Crusher is a large crushing machinery, using the gyratory sports in casing cone cavity of crushing cone to produce extrusion, fracturing and bending role to materials for crushing ore or rock of various hardness.

What is impact crusher?

An impact crusher is a machine that uses striking as opposed to pressure to reduce the size of a material. Impact crushers are designated as a primary, secondary, tertiary or quarternary rotor crusher depending on which processing stage the equipment is being utilized.

What is mobile crusher?

An in-pit and mobile crusher facilitates the transport of crusher material (ore, stone, rock) out of the mining area via also mobile or portable conveyors. The type of primary crushing is done using any of the several types of crushers available today capable of taking coarse/large rocks: