As one of the most common primary crushing equipment in the mining machinery industry, the jaw crusher is widely used in sand and gravel, mining, metallurgy, building materials, and other fields due to its high cost-effectiveness and durable structure. It is primarily used for the primary crushing of materials in crushing operations, and is particularly suitable for the primary crushing of medium- to high-hardness stones.

However, jaw crushers are not universally applicable. Their suitability for certain materials, such as soft materials with low hardness, high moisture content, or sticky materials, may be reduced. Furthermore, when processing extremely hard materials (such as some shales and coal gangue), the jaw plate wears more rapidly, increasing maintenance costs.

Advantages of Jaw Crusher

Simple and Reliable Structure

• Simple design, stable operation; and easy adjustment and maintenance.
• Discharge particle size can be flexibly controlled by adjusting the discharge opening size to meet diverse production needs.
• Easy replacement of wearing parts and long maintenance intervals contribute to low overall operating costs.

High Crushing Efficiency

• The deep-chamber, no-dead-zone design provides strong feed capacity, ensuring full material entry into the crushing chamber.
• High crushing ratio: coarse crushing can reach 2.7-3.9, and fine crushing can reach 6.7-12.5.
• With its large processing capacity and high production capacity, it is suitable for large-scale production needs.

Disadvantages of Jaw Crusher

Energy Consumption

• Due to the idling stroke, this increases non-productive power consumption, resulting in lower energy efficiency than some newer crushing equipment.

Limited Applicability

• High-quality installation foundations are required, and attention must be paid to stability during construction.
• It is not suitable for crushing soft materials or materials with a moisture content exceeding 10%. Otherwise, the jaw plates may stick to the material, affecting production efficiency and even causing
• blockages.

Crusher Parameter Comparison Table

Note: The above yields are based on crushing medium-hard limestone.

Summary

The jaw crusher is an economical, reliable, and mainstream equipment suitable for coarse crushing. It demonstrates high production efficiency and durability, especially when processing medium- to high-hardness materials. For production lines requiring large-scale, long-term stable operation, the jaw crusher is undoubtedly an extremely cost-effective choice.

However, if the production materials are mainly soft, highly humid or highly viscous, or if it is necessary to deal with ultra-high hardness stones, it is necessary to consider other types of crushing equipment based on the actual situation, or take supporting measures to improve production efficiency.