Understanding Mobile Crushers

Mobile crushers are highly versatile and efficient, making them indispensable in various industries. Below, we outline their advantages, characteristics, maintenance practices, applications, and inspection protocols.

Advantages and Characteristics

1. High Mobility
   Mobile crushing stations feature a compact design with a short length and independent chassis, resulting in a shorter wheelbase and smaller turning radius. This allows flexible maneuverability in work zones or on roads.
2. Flexible Configuration
   Integrating feeding, conveying, and crushing systems, mobile stations simplify installation and reduce material and labor costs. Their compact layout minimizes site requirements and enhances operational flexibility.
3. Strong Adaptability
   Mobile stations can be customized for different crushing processes, supporting “crush-then-screen” or “screen-then-crush” workflows. They can form two- or three-stage systems and operate independently, offering high flexibility in operations and transportation.
4. Low Transportation Costs
   By processing materials on-site, mobile crushers significantly reduce material transportation costs, a key economic advantage.
5. Reliable Performance and Easy Maintenance
   Optimized designs ensure greater strength, superior performance, and compact structures. These features, combined with easy maintenance, contribute to their strong reputation for reliability.
6. Direct and Efficient Operations
   Mobile crushers support independent operation or flexible configurations to meet diverse crushing and screening needs. This ensures efficient material handling, streamlined logistics, and maximum cost efficiency.

Maintenance Practices

To maximize the lifespan of mobile crushers, adhere to these maintenance practices:

1. Regular Wear Inspections
   Routinely inspect wear parts, such as feed pipes, cone caps, impeller liners, circumferential guards, and jaw plates. Repair or replace severely worn components, ensuring replacements match original specifications.
2. Effective Lubrication
   Lubricate friction surfaces regularly, selecting grease (e.g., calcium-, sodium-, or calcium-sodium-based) based on environmental conditions. Clean bearing raceways with gasoline or kerosene before adding grease, filling bearing housings to ~50% capacity. Replace grease every 3–6 months to ensure smooth operation and extended equipment life.
3. Equipment Cleanliness
   Maintain cleanliness to prevent dust, oil, or leaks (oil, water, electricity, or dust). Ensure no debris enters lubrication systems, as it can damage oil films and accelerate wear. Clean bearings regularly, and after 2,000 hours of operation, inspect the spindle assembly. Replace bearings after ~7,200 hours.

Applications

Mobile crushers are widely used in:

1. Mining and Construction
   Mining, coal mining, waste recycling, earthworks, urban infrastructure, road construction, and construction sites.
2. Material Processing
   Processing topsoil, separating sticky aggregates, post-crushing screening, and applications in construction, demolition, and quarrying.
3. Artificial Sand Production
   Processing river pebbles, mountain stones (limestone, granite, basalt, etc.), ore tailings, and stone chips for artificial sand.

Maintenance and Inspection Protocols

Daily Maintenance

• Lubricate equipment as specified, using grease/oil for smaller equipment and forced lubrication for larger systems (e.g., cone or large jaw crushers). Monitor oil temperature, pressure, and flow.
• Tighten loose fasteners.
• Check for excessive noise or vibration, stopping the equipment for inspection if detected. Restart without load after resolving issues.
• Monitor product quality and output for signs of blockages or screen damage.

Inspection and Repair

• Plan minor, intermediate, and major repairs based on component requirements.
• Swap components for repairs when possible to reduce downtime and improve equipment utilization.