In today’s rapidly evolving industries, the use of mobile crushers has become increasingly prevalent due to their versatility and efficiency in various applications. Mobile crushers are compact machines designed to crush different types of materials on-site, eliminating the need for transportation and reducing operational costs. This article provides a comprehensive guide on how to effectively use a mobile crusher, exploring its primary function, types, working principle, maintenance, and troubleshooting.

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Understanding Mobile Crushers

Types of Mobile Crushers

Working Principle of a Mobile Crusher

Components and Roles in the Crushing Process

Maintaining a Mobile Crusher

Troubleshooting Common Issues



Understanding Mobile Crushers

A mobile crusher is a self-propelled machine designed to reduce large rocks into smaller rocks, gravel, or rock dust for various purposes such as construction, road building, quarrying, and recycling. The primary function of a mobile crusher is to take the raw materials and transform them into aggregates that can be used in different construction projects.

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Types of Mobile Crushers

1. Jaw Crushers:

   – Jaw crushers are the most common type of mobile crushers and are well-suited for a wide range of applications.

   – They work by compressing the material between two surfaces, creating particles with reduced size.

   – Ideal for processing hard and abrasive materials.

2. Impact Crushers:

   – Impact crushers use impact force to crush materials, making them suitable for softer materials like limestone, gypsum, and clay.

   – They consist of a high-speed rotor that collides with the material, breaking it down into smaller particles.

3. Cone Crushers:

   – Cone crushers are used for secondary and tertiary crushing stages.

   – They operate by squeezing the material between an eccentrically rotating mantle and a concave, which acts as the crushing chamber.

Working Principle of a Mobile Crusher

The working principle of a mobile crusher is straightforward, though it varies depending on the type of crusher being used. In general, the primary steps include:

1. Material Feed:

   – The raw material is fed into the mobile crusher through a vibrating feeder or another feeding mechanism.

   – The feeder regulates the flow of material into the crusher to ensure efficient operation.

2. Crushing Process:

   – Once inside the crusher, the material is subjected to the crushing action caused by the moving parts.

   – Jaw crushers use a fixed jaw plate and a moving jaw plate to apply pressure, while impact crushers and cone crushers use rotating rotors and mantles, respectively.

3. Size Reduction:

   – The primary function of the crusher is to reduce the size of the material to the desired output size.

   – The crushed material then exits the crusher through a conveyor belt for further processing or stockpiling.

Components and Roles in the Crushing Process

1. Chassis:

   – The chassis is the base of the mobile crusher, providing support and stability during operation.

   – It houses the engine, control panel, and other vital components.

2. Feeder:

   – The feeder evenly and continuously feeds the raw material into the crusher, preventing blockages and ensuring consistent performance.

3. Crusher:

   – The crusher itself is the core component responsible for breaking down the material into smaller sizes.

4. Conveyor Belts:

   – Conveyor belts transport the crushed material to various locations for further processing or stockpiling.

5. Control Panel:

   – The control panel allows operators to monitor and adjust the crusher’s settings, ensuring optimal performance and safety.

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Maintaining a Mobile Crusher

Proper maintenance is essential to ensure the longevity and efficient operation of a mobile crusher. Here are key maintenance tips:

1. Regular Inspection:

   – Perform routine inspections of the mobile crusher and its components to identify any signs of wear, damage, or potential issues.

2. Lubrication:

   – Keep all moving parts well-lubricated to reduce friction and prevent premature wear.

3. Component Replacements:

   – Replace worn-out or damaged parts promptly to avoid further complications and downtime.

4. Cleaning and Dust Suppression:

   – Keep the machine and its surroundings clean to prevent dust buildup, which can cause blockages and affect performance.

Troubleshooting Common Issues

Despite proper maintenance, mobile crushers may encounter problems during operation. Here are common issues and troubleshooting tips:

1. Blockages:

   – Issue: Material getting stuck in the crusher, leading to reduced productivity.

   – Solution: Shut down the crusher and clear the blockage manually. Implement preventive measures to avoid future blockages.

2. Conveyor Belt Problems:

   – Issue: Conveyor belts slipping, tearing, or misaligning.

   – Solution: Regularly inspect the belts for signs of wear and proper alignment. Replace damaged belts promptly.

3. Electrical Malfunctions:

   – Issue: Electrical issues leading to the crusher’s failure to operate.

   – Solution: Check all electrical connections and fuses. Consult a qualified technician for complex electrical problems.


1. Q: Can a mobile crusher handle different types of materials?

A: Yes, mobile crushers are designed to process various materials, including rocks, concrete, asphalt, and demolition waste.

2. Q: How often should I perform maintenance on my mobile crusher?

A: Regular maintenance is essential. Follow the manufacturer’s guidelines and conduct routine inspections to ensure optimal performance.

3. Q: Can I adjust the output size of the crushed material?

A: Yes, most mobile crushers allow you to adjust the crusher’s setting to achieve the desired output size.

4. Q: Are mobile crushers environmentally friendly?

A: Mobile crushers can be more environmentally friendly than traditional crushers since they reduce the need for transportation, but proper dust and noise suppression practices are necessary to minimize their impact.

5. Q: Can I use a mobile crusher for recycling purposes?

A: Absolutely! Mobile crushers are widely used in recycling applications to process various materials for reuse in construction projects.


Mobile crushers are valuable tools that offer efficiency and convenience in various industries. Understanding their primary function, types, working principle, and the role of each component is crucial to effectively utilize them. Additionally, proactive maintenance and troubleshooting strategies ensure continuous operation and maximize productivity. By adhering to proper practices and promptly addressing issues, operators can harness the full potential of mobile crushers for successful on-site material processing and construction projects.

Monde is one of the most experienced manufacturers of mobile crushers and can help you with any questions you may have, please feel free to contact our experts.