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Added: May 22, 20252025-05-22T09:47:00-04:00 2025-05-22T09:47:00-04:00In: Mining Operations

Comparison between jaw and gyratory crusher

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A jaw crusher is a piece of equipment used in mining, quarrying, and construction to break down large rocks and materials into smaller pieces. It works by using compressive force applied by a fixed jaw and a moving jaw to crush the material between them.

A gyratory crusher is a type of rock crusher commonly used in mining and quarrying operations. It’s characterized by a cone-shaped crushing element that rotates within a stationary crushing chamber, using a gyratory (or spinning) motion to break down rocks and materials into smaller pieces.

These are the two main crushers used in the mining industry. However, it should be noted that there are points of difference between them, and our aim in this article has been to highlight them. We have therefore provided a summary in Table 1.

Jaw Crusher Gyratory Crusher
The loading on machine components is intermittent and the power draft irregular. Uniform loading on the machine components with regular power draft.
Crushing action is intermittent. Crushing action is almost continuous.
For a particular gape size the capacity is less compared to gyratory crusher. For the same gape size the capacity is much larger.
Its feed acceptance size is much larger compared to gyratory crusher. Its feed acceptance size is much less compared to jaw crusher for the some capacity.
Product particle size distribution varies widely &it has a reduction ratio less than that of the gyratory crusher. More uniform sized product is obtained with a larger reduction rate
Power consumption is higher for jaw crusher for a particular r.r. & capacity. With the same reduction rate & capacity, the gyratory crusher requires less power.
The crusher is less efficient compared to gyratory crusher It has an efficiency of 10 -20%. It has an efficiency of 30 – 50%.
The wear on the jaw plates is not uniform which causes heavy wear on the jaw plates at certain areas. The jaw plates are replaced frequently. The wear on the crushing cone is quite uniform. If the bottom opening changes, the inner cone can be lifted up by the variable bearing to reduce the gap.

So the heads can serve for a longer time.

Not much variation can be obtained with regards to product particle size. Wide variation in product size can be obtained by varying the setting of the central shaft. The set can be varied as per requirement.

 

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