Product Overview
The Fine Crusher (High-Efficiency Tertiary Crusher) is an advanced crushing system designed for ultra-fine material processing and artificial sand production. Engineered with cutting-edge German technology, it achieves 50% energy savings compared to conventional crushers while delivering superior particle shape and throughput. Ideal for processing granite, basalt, iron ore, cement clinker, and recycled concrete, it meets the rigorous demands of modern infrastructure projects including highways, railways, and hydropower stations.
Key Innovations
1. Dual-Material Hammer System
- Hammer Head: High-chromium cast iron (26% Cr) with 2.5x wear resistance vs standard manganese steel
- Hammer Shank: Forged carbon steel core for impact absorption and anti-fracture performance
- Proven Results: 50% longer service life in iron ore crushing vs conventional designs
2. Energy-Efficient Operation
- Power Consumption: 0.8-1.2 kWh/t (35-50% lower than ISO 1940 benchmarks)
- Continuous Processing: 24/7 operation capability with <0.3% downtime
3. Precision Particle Control
- Output Gradation: 0-5mm adjustable via hydraulic gap regulation
- Cubic Ratio: >95% with <3% flake content (ASTM D4791 compliant)
Technical Advantages
| Feature | Benefit |
|---|---|
| Modular Design | 4-hour full hammer replacement vs 16hrs in traditional models |
| Dual-Rotor System | Two-stage crushing: Primary impact → Secondary attrition grinding |
| Dust Suppression | IP65-rated sealing with optional water spray system |
| Smart Monitoring | Vibration/temperature sensors with PLC auto-shutdown protection |
Working Principle
1.Primary Crushing
- High-speed rotor (800-1200 RPM) accelerates material into hammer impact zone
- Initial fragmentation via hammer/anvil plate collision
2.Attrition Refinement
- Particles enter secondary chamber for inter-granular grinding
- Centrifugal vortex effect ensures 360° particle-on-particle abrasion
3.Gradation Control
- Adjustable grate bars regulate final output size (0-10mm)
- Oversize particles automatically recirculated
