1. Introduction

In mineral processing, jaw crushers play a crucial role as the primary stage of size reduction. Among all components, jaw plates are the most critical wear parts, directly influencing crushing efficiency, product size, and operating cost.

2. Understanding Jaw Plates

Jaw plates are replaceable liners installed on both the fixed and moving jaws. They come into direct contact with the material and are subjected to continuous abrasion and impact.

When wear occurs, the crushing gap changes, leading to inconsistent output size and reduced downstream performance.

3. Materials and Performance

Common materials include:

• Mn13% and Mn18% high manganese steel for standard hard rock applications
• Mn22% for highly abrasive materials
• Bimetal and composite plates for combined impact and wear conditions

Each material offers different levels of wear resistance and durability.

4. Tooth Profile Selection

Jaw plate design is equally important:

• Corrugated profiles increase throughput
• Sharp teeth improve gripping performance
• Flat profiles help produce finer material

Selecting the correct design ensures better crushing performance and efficiency.

5. Impact on Plant Performance

Proper jaw plate selection results in:

• Stable product size
• Reduced energy consumption
• Lower maintenance frequency
• Extended equipment life

Ultimately, this leads to a lower cost per ton.

6. Selection Strategy

Choosing the right jaw plate depends on:

• Rock hardness and abrasiveness
• Moisture and clay content
• Production goals and maintenance strategy

The best solution balances durability and cost efficiency.

7. Conclusion

Jaw plates are not just consumables — they are key to optimizing crushing operations. Correct selection improves efficiency, reduces downtime, and enhances overall plant profitability.

Annie Lu
Huatao Group
Email: annie.lu@huataogroup.com
Mobile: +86 18032422676

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