In mining and quarrying operations, jaw crushers are the most crucial primary crushing equipment. As a professional provider of wear-resistant parts solutions for jaw crushers, we understand that the quality of mining replacement parts-particularly wear-resistant components-directly affects the production efficiency and operational costs of equipment. This article provides a detailed overview of three core wear-resistant components for jaw crushers-jaw plates (also called jaw dies), cheek plates, and toggle plates-highlighting their functional characteristics, material selection, and maintenance tips, to help you make informed purchasing decisions.
1. Core Mining Spare Parts – Wear-Resistant Components
1.1 Jaw Crusher Jaw Plate Castings (Fixed and Movable Jaw Plates)
Function:
● Jaw plate castings form the core working parts of the crushing chamber.
● They crush materials through compression.
● Manganese jaw plates protect the main structure of the crusher from wear.
Structure:
● Fixed Jaw Plate: Vertically fixed to the front wall of the frame. It has two designs: integrated and split. Both designs are highly reliable.
● Swing Jaw Plate: Driven by an eccentric shaft to perform reciprocating motion. The movable jaw has two designs: integrated and split, and is generally made of high manganese steel.
● Jaw crusher plate surface designed with teeth to enhance crushing efficiency.
Advantages of One-Piece Jaw Dies Design
● Faster jaw die replacement – reduces downtime
● Fewer parts – no need for a center wedge
● Easy to install – suitable for maintenance in limited spaces and mobile applications
Advantages of Two-Piece Jaw Dies Design
● Longer expected service life (when replaced as recommended)
● Reduced waste rate and cost per ton
● Equipped with standard lifting tools for the crusher
● By rotating the jaw dies as recommended, a good bite angle can be achieved
Jaw Crusher Parts – Jaw Plate Types
Jaw crushers use several types of jaw plates, each designed for specific purposes. Below are some of the most common types of jaw plates:
● Flat Jaw Plates: The most basic type, used for general crushing. They are designed simply and are usually made from manganese steel known for its toughness and durability.
● Corrugated Jaw Plates: These plates have a corrugated surface, which helps to grip the material being crushed and prevents it from slipping. This design is especially useful for crushing hard or abrasive materials.
● Tooth Jaw Plates: These plates have teeth or ridges on the surface, which help grip and crush the material. They are particularly suitable for crushing hard, brittle materials such as concrete or rock.
Material Selection for Jaw Crusher Components:
|
Material Model |
Suitable Conditions |
Expected Lifespan |
Hardness (HB) |
|
Mn13Cr2 |
Medium to low-hardness materials (e.g., limestone) |
6 months |
≤220 |
|
Mn18Cr2 |
High-hardness materials (e.g., granite) |
6 months |
≤230 |
|
Mn22Cr2 |
Extremely hard materials (e.g., iron ore) |
6 months |
≤240 |
|
High-Chrome Cast Iron |
Super high-wear conditions |
6 months |
≤180 |
Note: Jaw plate sizes typically range from 300mm to 1500mm, with customized jaw plates depending on crusher models. For more demanding applications, we offer custom materials containing molybdenum or TIC elements to improve resistance to harder materials and extend service life.
Maintenance Recommendations:
● Regularly check the wear on jaw plate teeth.
● Reverse the plates when wear reaches 50%.
● Avoid oversized material entering the crushing chamber.
1.2 Cheek Plates (Side Plates of Jaw Crushers)
Function:
● Protect the sides of the crusher from material impact.
● Guide material into the crushing chamber.
● Enhance overall structural stability.
Structure:
● Installed on both sides of the crushing chamber.
● Typically designed in two parts.
● Designed as trapezoidal with a rounded corner transition.
Material Selection:
● Standard material: Mn13-Mn18.
● For special conditions, composite materials may be chosen.
Maintenance Recommendations:
● Regularly check fastening bolts.
● Observe wear on the surface.
● Replace along with jaw plates for better performance.
1.3 Jaw Crusher Toggle Plate (Thrust Plate)
Function:
● Transmit crushing force.
● Adjust discharge opening size.
● Serve as an overload protection device.
Structure:
● The toggle plate connects the movable jaw to the frame.
● Includes a fracture groove as a safety feature.
● Available in both solid and composite versions.
Material Selection:
● Standard material for toggle plates: High manganese steel.
● For high-wear conditions: Carbon steel.
Maintenance Recommendations:
● Regularly check for deformation.
● Monitor the fracture groove condition.
● Ensure precise fit when replacing.
2. Key Considerations for Selecting Wear-Resistant Parts from Mining Equipment Spare Parts Manufacturers
2.1 Material Characteristics Analysis:
● Hardness (Mohs hardness).
● Abrasiveness.
● Moisture content.
● Feed particle size.
2.2 Equipment Parameter Matching:
● Crusher model.
● Operational parameters (e.g., speed, power).
● Current wear conditions.
2.3 Cost-Benefit Evaluation:
● Initial purchase cost.
● Expected service life.
● Downtime and replacement costs.
2.4 Supplier Qualifications Review:
● Production equipment level.
● Quality control system.
● After-sales service capabilities.
3. Practical Tips to Extend the Service Life of Wear-Resistant Parts
3.1 Correct Installation Method:
● Use a torque wrench to ensure proper fastening.
● Check the fit of components.
● Perform a no-load trial run.
3.2 Scientific Operational Standards:
● Feed material evenly to avoid uneven loading.
● Control maximum feed size.
● Avoid prolonged overload operation.
3.3 Effective Maintenance Plan:
● Establish a regular inspection schedule.
● Record the wear condition of each part.
● Develop a preventive replacement plan.
3.4 Advanced Monitoring Methods:
● Use thickness gauges to detect wear.
● Monitor abnormal temperature rise with infrared sensors.
● Perform vibration analysis to predict potential failures.
4. Why Choose Our Wear-Resistant Parts Solutions?
4.1 Precise Matching Guarantee:
● We support various brands like Metso, Sandvik, and others. You can share your design documents or ideas with our R&D team.
● We offer OEM-level replacement solutions, including brand, labels, spray paint color, and packaging.
● 3D scanning ensures precise sizing for jaw crusher spare parts.
4.2 Premium Material Guarantee:
● We use vacuum melting technology.
● Strict heat treatment processes.
● Material reports provided for each batch.
4.3 Customization Services:
● Solutions for special conditions.
● Composite material development.
● Rapid prototyping services.
4.4 Comprehensive After-Sales Support:
● The argon-blown smelting technology is used.
● On-site installation guidance.
● Usage tracking services.
Custom Jaw Crusher Parts for Various Brands and Applications
We offer customized wear parts for jaw crushers. Our parts are suitable for:
Note: Manufacturer names, part numbers, models, images, and descriptions are for identification and reference only and are the intellectual property of the respective equipment manufacturers. All parts provided by Duma Machinery are produced and warranted by Duma Machinery and are not affiliated with the original equipment manufacturer (OEM). Duma Machinery does not claim any association with any OEM and does not intend to mislead as such.
Can't find your crusher brand? Customize your crusher parts drawing solution.
Drawings are crucial for customizing wear parts of crushers. Below are three methods Duma Machinery uses to address this issue:
Customer provides drawings:
We create 3D drawings and verify the dimensions.
Customer has crusher model and part numbers:
We search for the corresponding drawings in the jaw crusher parts catalog and verify the dimensions.
No available drawings:
We guide the customer in measuring the dimensions, create 3D drawings, and then verify the data. Alternatively, on-site technical testing can be performed.
Why choose Duma Machinery's parts of a jaw crusher?
Duma Machinery ensures that the jaw crusher wear parts factory are competitively priced and custom-made. Our experienced engineers have over ten years of expertise, guaranteeing precise replication of OEM dimensions.
International Certification and Quality Commitment
● ISO9001:2015 Quality Management System Certification
● Product performance exceeds industry standards
● Trusted high-quality supplier for global customers
Strict Quality Control
● Transparent production progress: Weekly updates on production status with real-time factory monitoring support
● Traceable materials: Material test reports for each batch, ensuring compliance with material specifications
Comprehensive Product Supply System
● Ample inventory: covers wear parts for various crushers including jaw, cone, and impact crushers
● Comprehensive services: provides OEM replacement parts, rare models, and customized products
Corporate Strength Guarantee
● Over 10 years of industry experience
● 47,000㎡ modern production facility
● 4,000+ sets of professional mold reserves
● Comprehensive drawing database support
Looking for Custom Jaw Crusher Parts?
Please contact us with your crusher model, part name, and number, and we will strive to fulfill your order.
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Having trouble with your jaw crusher parts?
You're not alone. Many users encounter issues with their crusher parts. Don't worry, I'm here to help! Below are some common questions and solutions to help you manage rock crushing with ease.
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FAQS about Jaw Crusher Parts
Q: How do I ensure that the jaw crusher parts match the original equipment?
A: To ensure your crusher parts match the original, we will provide you with precise part drawings based on your part number. These drawings will be sent for confirmation, ensuring that all key dimensions are accurate, which helps minimize downtime and lower production costs. If you don't have the drawings, we'll guide you through accurate part measurement. Our technical team can also assist you on-site for detailed measurements. Once the data is integrated, we will cross-check dimensions with you to ensure everything is in order.
Q: How do I ensure the quality and metal composition of jaw crusher wear parts?
A: We manufacture all our wear parts (including jaw plates, cheek plates, and toggle assemblies) using high-quality manganese steel, ensuring superior wear resistance and reliable mechanical properties. Our wear parts materials range from Mn13Cr2 to Mn18Cr2 and Mn22Cr2, catering to different working conditions. Custom materials are also available based on your needs. Each batch of products comes with a composition report, ensuring that the products you receive match what you ordered.