Vertical Shaft Impact Crushers

Vertical Shaft Impact

Vertical shaft compound crushers are screenless, adjustable fine crushing machines, optimized and introduced by our company to absorb advanced fine crushing technology both domestically and internationally. They incorporate rock-on-rock crushing technology that has revolutionized the aggregates and mineral industries worldwide. These crushers are designed for low service requirements, with easy lubrication and the assurance of continuous operation. They are suitable for fine crushing of medium-hardness materials such as dolomite, coke gemstone, lead-zinc ore, serpentine, blast furnace slag, coal gangue, phosphate rock, and more. They are particularly effective for crushing hard limestone, dolomite, minerals, basalt, etc., making them ideal for artificial sand making and highway pavement aggregate production.

Benefits of VSI

VSI crushers use a high-speed rotor and anvils for impact crushing, resulting in consistent cubical-shaped products, ideal for modern Superpave highway asphalt applications.
The high cubical fracture percentage maximizes first-pass product yield and ensures a tighter particle size distribution.
VSI crushers have a high-throughput capacity, making them suitable for beneficiation and the elimination of soft materials.
They can handle highly abrasive materials and offer simple operation and maintenance.
Adjusting product size is convenient by changing rotor speed or cascade ratio.
Some models feature reversible wear parts, reducing downtime and maintenance costs.
VSI crushers typically have low operating costs, even in high-moisture applications, due to reduced energy and wear costs per ton.

Key Features

Competitive costs compared to conventional crushing equipment
 Low service and maintenance requirements, minimizing operating and wear costs
Superior cubical shape products due to preferential crushing action
Quick balance rotor and rock-on-rock technology to minimize wear part requirements
 Advanced power configuration and crushing technology for enhanced economy
Precision manufacturing and noise-absorbing materials for reduced equipment noise and improved work environment comfort
Multi-stage crushing and screening for uniform particle size distribution in finished materials

Structure of Vertical Shaft Compound Crushers

Also known as vertical shaft sand-making machines, these crushers consist of a transmission device, bearing, upper machine cover, liner, hammer head, hammer plate, main shaft, belt, feed port, discharge port, support, motor, access door, cylinder, upper cover, and base, among others. The operating cost is minimal, the internal construction is straightforward and sensible, and wear and tear is minimized by applying the stone-against-stone principle.

Working Principle

The upper portion of the vertical shaft compound crusher sends material down vertically into the machine body, where it lands on the throwing plate. Under centrifugal force, the material is thrown to the inner wall of the cylinder and violently collides with the counterattack plate installed on the inner wall. This violent impact breaks or cracks the material. During the falling process, the material is broken by stamping, extrusion, etc., once it enters the conical rotor cavity. Once the material has been further broken down into tiny particles, the approved final product is released through the discharge port.

Wide Range of Applications

Vertical compound crushers find widespread usage in various industries including cement, mining, metallurgy, construction, and chemicals for crushing and shaping materials.

Key applications of limestone encompass Superpave asphalt aggregates, road base construction, gravel, sand, and cement. Industrial sectors benefit from its use in corundum, corundite, ferro silicon, glass production, refractories, silicon carbide, tungsten carbide, and zeolite processing. In mining, it proves effective for bauxite, burnt magnesite, iron ore, non-ferrous metal ores, perlite, and trona sulfate. Vertical Shaft Impactors (VSIs) excel in handling abrasive materials and are valuable in waste management and recycling operations.

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