What are the purposes of the Cone Crusher?

Cone crushers 

Cone Crushers have been used as primary, secondary and tertiary crushers for quite a long time

They are widely employed for crushing hard and abrasive materials in both the aggregate and mining industries.

Designed especially for the hardest material types, cone crushers are one of the best choices for crushing river gravel, basalt and granite, along with abrasive materials in the mining industry like iron, chrome, magnesite and copper ores.

cone crusher

The robust design and high-grade cast steel body of our cone crushers provide the strength and stability necessary for crushing extra-hard materials while ensuring low maintenance costs.

The solid structure required for crushing very hard materials allows the operators to employ the cone crusher for a wide range of applications, crushing everything from limestone to basalt. In addition, its versatility enables our customers to keep a high profit level in changing conditions.

The cone crusher’s optimised speed and improved crushing chamber design provides high productivity with less wear on parts, meaning a great savings in labour.

cone crusher

Thanks to the long-wearing wear parts, the crushing process is longer lasting.

In addition, since the maintenance and repair operations can be done easily on the breaker, the operation costs are also low.

Cone crushers are hard and abrasive creeks and pits such as granite, basalt and andesite.

It is designed to break the materials. It is used as secondary and tertiary crusher.

The working principle of cone crushers is to break the materials with the effect of compression, cutting and bending.

It offers low dust and abrasion rates as they break the material by compressing it.

Body Structure:

The body consists of two parts, the upper and lower. The inner surface of the upper section is covered with concave.

cone crusher

Cone crushers, It is in the form of an inverted truncated cone. According to the size of the breaker, it is reinforced with horizontal and vertical belts.

It is made of cast iron or cast steel. In very large crushers, they are made in pieces, and the parts are added together with strong and thick bolts, and the body is formed.

The lower part of the body is a protector and carrier. The bolts to which the hammer is attached to the foundation are passed through the holes located here.

It has a structure suitable for placement of the eccentric sleeve and bevel gear in the middle part where the lower extension of the shaft enters.

This part also carries the main drive pulley and the shaft (pinion shaft) bearing. Cone crushers Like the upper compartment, it can be reinforced with vertical and horizontal belts depending on the size of the hammer.

A groove structure suitable for the broken goods to come out of the crusher is also part of this section. The upper and lower sections of the body are connected by bolts passing through their mutual flanges.

Mouth Ring and Bridge:

The upper end of the body is surrounded by a mouth ring. The bracelet also carries the bridge, which is suitable for the upper end of the hub to pass.

The mouth plate is covered with a wear plate (liner) as the material is fed to the crusher through the upper mouth of the body.

cone crusher

The mouth and bridge can be built in one piece.

As the bridge is important in terms of crusher blockages, it is curved upwards and with two or three legs as it is important for the bridge to close as little as possible. The top of the feet is covered with protective plates (lining) against impacts and wear.

Mouth collar lining and bridge foot lining are usually made from the same material as concave. In the middle of the feet, the egg-shaped part has a structure where the upper end of the hub shaft will enter.

Cone crushers, If the main shaft is of the type suspended from the bridge, this section has a structure according to it.

With the eccentric movement, a spherical bearing structure is noticeable here, since the shaft is constantly making a secretion.

Also included in this section is an adjustment device that allows the hub to be pulled upwards to accommodate wear and adjust the throat opening.

Hub and Main Shaft:

The main shaft is sized to withstand the forces and shocks arising from forged steel and breaking action.

cone crusher

The middle is more bulging, thinner towards the two ends. It passes from the upper end to the slot in the middle of the bridge and from the lower end to the eccentric sleeve in the lower body.

Cone crushers, The part of the navel that comes to the crusher zone is in the form of a cone with a wide top and a narrow diameter.

A second conical part, which passes into this conical part, carries conical hub linings on its upper surface.

Since the core movement is an eccentric secretion, there is a good felting requirement between the core and the lower body.

Such a felt is very important to prevent the fine parts and powders that will come out of the crushing process from damaging the moving parts in an oil cycle.


Reference; Mac. Eng. Yusuf ARMAN

Mechanical Eng. Msc Suphi Yavuz, Başak Yavuz Makine, Technical Notes

Mining Eng. Msc Necati Yıldız, Ore Dressing and Enrichment Book



(1) Crusher — Wikipedia

(2) Crushing plant — Wikipedia

(3) Cone Crusher – Quora

(4) Cone crushers — YouTube

(5) Cone Crushers — MEKA Crushing & Screening Plants

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