VSI Crusher

Product Overview

The VSI Series Vertical Shaft Impactor represents advanced crushing technology, combining the proven “stone-on-stone” impact principle with specialized adaptations for optimal processing of Chinese mineral resources. This high-efficiency crushing solution is engineered for medium-to-fine reduction of various hard and brittle materials including:

• Abrasives and refractories
• Cement clinker and quartzite
• Iron ore and concrete aggregates
• Building and road construction sand production

As the industry-leading solution, it has effectively replaced conventional hammer crushers, roller crushers, and rod mills in modern sand production operations.

Key Components & Structure

The crusher’s robust design features:

1. Main Rotor Assembly
   • Heavy-duty spindle mounted on reinforced base
   • Precision bearings for smooth operation
   • Belt-driven power transmission system
2. Crushing Chamber
   • Vortex-type design for optimal material flow
   • Self-lining wear protection system

Installation Guidelines

For optimal performance and safety:

1. Foundation Preparation
   • Ensure proper leveling (≤0.1° deviation from vertical)
   • Provide adequate lifting capacity (minimum 150% of heaviest component)
   • Maintain 1.5m clearance for maintenance access
2. Mechanical Setup
   • Secure base mounting (M30 foundation bolts recommended)
   • Verify proper alignment before operation
3. Pre-Operation Checks
   • Inspect all components for damage
   • Confirm proper lubrication
   • Check for potential oil leaks

Product Advantages

1. Reduced Maintenance Requirements

• Self-lining wear components decrease part replacement costs by 40-60%
• Quick-access design simplifies routine servicing

2. Environmental Performance

• Patented airflow system minimizes dust emissions (PM10 <20mg/m³)
• Specialized design prevents iron contamination in glass recycling
• Eliminates material jamming in steel slag processing

3. Economic Efficiency

• ROI within 4-5 months of operation
• 30-50% lower energy consumption vs conventional crushers
• High automation reduces labor requirements

4. Optimized Structural Design

• Welded steel construction (S355JR grade)
• Lightweight yet durable frame
• Short manufacturing lead time
• Ideal for large-scale production

Working Principle

The crushing process occurs through three stages:

1. Material Feeding
   • Controlled feed via bucket elevator
   • Gradual descent into crushing chamber
2. Acceleration & Impact
   • High-speed impeller (up to 80m/s) propels material
   • Primary fragmentation through particle collisions
   • Vortex formation ensures secondary crushing
3. Final Gradation
   • Precise particle size control
   • Minimal wear on impact plates due to optimized material flow

Technical Parameters