Hammer Crusher

Product Overview

The Hammer Crusher is widely utilized in cement plants, power stations, and other industrial sectors for its proven design and operational efficiency. This robust machine employs high-speed rotating hammers to fracture materials along their natural cleavage planes, achieving superior size reduction. Key features include:

• High-chromium alloy hammers and impact liners for hard rock processing
• Adjustable discharge sizing (typically 5-25mm)
• Energy-efficient operation with multi-stage crushing action
• Currently the most effective solution for medium-hardness material reduction

Component Breakdown

1. Housing Assembly

• Construction: Welded upper/lower sections (Q235B steel)
• Design Features:
  • Top-mounted feed opening
  • Foundation mounting via M24 anchor bolts
  • Strategic access ports for maintenance (front/rear/left/right)

2. Rotor System

• Composition:
  • Forged steel shaft (42CrMo)
  • 6-arm hammer disc with tungsten-carbide pins
  • Replaceable hammer sets (modular design)
• Bearings: Spherical roller bearings (SKF/NSK equivalent)

3. Hammer Heads

• Material Options:
  • High-chromium alloy (Cr26) – Default
  • Martensitic steel (KMTBCr26) – For abrasive materials
• Design:
  • Interchangeable segments reduce replacement time by 60%
  • Weight-optimized for balanced rotation

4. Grate Assembly

• Configuration: Trapezoidal bar screen (65Mn steel)
• Function:
  • Controls final product size
  • Recirculates oversize particles for re-crushing

Technical Advantages

① Versatile Material Processing

• Applications: Limestone, coal, gypsum, ores (≤150MPa compressive strength)
• Industries Served: Cement, mining, power generation, chemical processing

② Optimized Hammer Design

• 5x longer service life vs traditional manganese steel
• 30% higher throughput with Gaomeng steel heat treatment

③ Triple-Action Crushing

1. Primary impact: Hammer strike
2. Secondary fracture: Material-impactor collision
3. Tertiary attrition: Particle-on-particle grinding

④ Operational Efficiency

• Crushing ratio: 10-25 (up to 50 for fine applications)
• Cubic-shaped output with <3% over-size particles
• 15-20% lower energy consumption than comparable models

⑤ Durable Construction

• Wear parts lifespan:
  • Hammers: 800-1,200 operating hours
  • Grates: 2,000+ hours (reversible design)

Working Principle

1. Feed Phase: Material enters through top chute
2. Size Reduction:
   • High-speed rotor (750-1,200 RPM) drives hammers
   • Combined impact/attrition forces fracture material
3. Classification:
   • Sub-grate particles discharge immediately
   • Oversize material recirculates for further processing

Technical Parameters