Introduction of Jaw Crusher

The PE jaw crusher is primarily used for primary crushing in sand and gravel production plants, especially suited for breaking down large rocks. Thanks to its stable operation, high crushing ratio, and low operating costs, it is widely utilized in sand and gravel crushing, sand making, and other related applications.

The coarse jaw crushers belong to the PE series, with commonly used models including PE200×300, PE200×350, PE250×400, PE400×600, PE500×750, PE600×900, and PE750×1060. These crushers can achieve an hourly production capacity of up to 1,200 tons.

The fine jaw crusher is primarily used for secondary crushing in stone crusher plants. Due to its relatively low cost, it is often chosen as an alternative to impact crushers or cone crushers. Common models in the PEX series include PEX150×750, PEX250×750, PEX250×1000, PEX250×1200, and PEX300×1300. These crushers offer an output capacity ranging from approximately 8 to 100 tons per hour.

Difference Between Coarse Jaw Crusher and Fine Jaw Crusher

1.Feed and Discharge Particle Size
The fine jaw crusher is designed for smaller feed sizes, accepting materials up to 250mm. Its discharge size is adjustable between 18mm and 90mm, producing smaller particles with a higher crushing ratio. This allows the crushed material to be used directly in infrastructure projects without further processing.

In contrast, the coarse jaw crusher can handle much larger feed sizes, up to 1200mm. Its discharge size is adjustable from 10mm to 400mm, which generally requires additional secondary crushing equipment to achieve the desired final product size.

2.Output Capacity
Fine jaw crushers come in fewer models and produce finer material sizes, which results in longer crushing times and consequently lower production capacities. Their output typically ranges from about 8 to 105 tons per hour.

On the other hand, coarse jaw crushers have a wider variety of models—more than ten types—with generally higher production efficiency. Large-scale coarse jaw crushers can achieve capacities of up to 1,200 tons per hour, making them suitable for high-volume crushing operations.

3.Different Uses
The fine jaw crusher is mainly used for secondary crushing, handling feed materials no larger than 250mm. It is widely applied in industries such as metallurgy, mining, and cement for fine crushing after the initial coarse crushing stage.

In contrast, the coarse jaw crusher is typically employed in the primary crushing stage of stone crushing production, capable of processing feed sizes up to 1200mm.

To Sum Up
Both coarse jaw crushers and fine jaw crushers are types of jaw crushers, which are among the earliest crushing equipment developed. Over time, continuous advancements and innovations have led to the emergence of various new series designed to better meet the diverse production needs of different users. Jaw crushers provide immense value to enterprises and remain indispensable tools in the mining and crushing industry.

People Also Frequently Ask – FAQ

1. How many types of jaw crushers are there?
   There are two main types of jaw crushers: single toggle and double toggle. Within the single toggle category, there are several series such as the PE series, PEX series, JCE series, and SKJ series, each designed to improve feeding efficiency and control output size.

2. What is the purpose of a jaw crusher?
   A jaw crusher reduces large rocks, ore, or other materials by compression. It features a fixed jaw mounted in a V-shaped alignment as the stationary surface, while a movable “swing” jaw pushes the material against the fixed jaw to break it down.

3. What is the difference between an impact crusher and a jaw crusher?
   Jaw crushers are ideal for crushing hard, brittle materials like granite, basalt, ores, and concrete. Impact crushers, meanwhile, are better suited for medium-hardness materials such as clay, limestone, coal, and dolomite. Impact crushers use impact force to break materials, while jaw crushers rely on compression.