What are the various Stages Involved in Rock Crushing?

by Tyron

Tractor stone crushers are vital equipment used in rock crushing. Thankfully, many reputable industries are offering high-quality Tractor stone crushers for sale thereby making life easy for many contractors.

These tractors are highly mechanized and used for crushing stones into small bits. It is mostly used by construction companies to process gravel, sand, rocks, minerals, and other similar products.

It’s perfectly normal to have some questions when you are just starting out in the industry.

This article aims to provide answers to some of those questions so let’s get on with it.

A step by step Guide on the Basic phases of Rock Crushing

There are various phases in rock crushing also known as stations. These various stages exist because passing material through one stage alone may not be enough to crush the rock down to a desired shape and size.

· Primary Crushing

This phase comes before every other phase in the Crushing process. It breaks down materials into units that can be worked on in the secondary crushing process. Normally, the lowest setting for crushers used on the primary process is about 4-6 inches. Could be a little less or a little more.

Some examples of primary crushers include gyratory crushers, Compression-style jaw, and impact crushers. In some cases, there may be an overlap of function between the secondary and primary crushers.

· Secondary Crushing

This follows after primary crushing and is done when further reduction is a necessity. The amount of reduction that takes place in this stage depends on how fine you want your finished product to appear.

The Cone, although can serve as a primary crusher is commonly categorized as a secondary crusher. This is because of their flexibility as regards speed, feed, throw and setting.

However, making use of cone crushers demand that you maintain a constant chocked setting. This is the only way to ensure high productivity.

· Final Reduction Crushing

While Tertiary Crushing is the third reduction crushing, Quaternary Crushing is the fourth reduction crushing. The aim of these two processes including the Final reduction crushing is to reduce the size of a material to the approved market size.

Just like in primary and secondary crushing, these stages may overlap and equipment used for one might also be suitable for the other. Some examples of crushers used for the Final reduction process include; horizontal impact crushers and vertical shaft impact crushers.

Types of Rocks

One of the most important factors that determine how many stages of crushing a rock will undergo is the type of rock used for the project.

The most commonly used materials in industries today include limestone, granite, sandstone, and gravel. These rocks differ in a lot of ways. While some are harder, others might not need to undergo all the stages of rock reduction.

The type of rock chosen for a project will determine what your overall setup will look like. The more knowledgeable you are about the rock mapped out for a project, the less difficult it would be to make a choice of the perfect crusher.


Do not forget that for a rock crusher to function maximally, it needs to coordinate perfectly with other equipment. This other equipment could be the conveyor system, the screens, or even the washing unit.

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