Tertiary Impact Crushers

The Tertiary Impact Crushers offered by Pyramids are specifically designed for crushing materials of medium and low hardness, commonly at the tertiary stage of the crushing process. Depending on the material’s hardness and feeding size, these crushers can also be used in secondary crushing applications. They produce finely crushed aggregates that are essential for the production of asphalt and concrete.

These crushers feature a bi-directional rotor, which allows it to rotate in both directions. This functionality enables the production of materials with two different gradations without the need to adjust settings. Additionally, the bi-directional operation ensures even wear on the rotor hammers, significantly extending the lifespan of these components. The crushers are available in various configurations, including mobile models, fixed steel legs, fixed concrete legs, and fixed skid chassis, depending on the facility’s requirements.

Advanced Crushing Process
The unique design ensures that the distance between the pendulum liners and rotor tracks narrows progressively from the feeding point to the discharge point. Unlike gradual crushing methods used in other impact crushers, this machine achieves linear size reduction. This method applies impact crushing closer to the feeding point and grinding towards the exit, minimizing the production of undesired particle sizes.

Features and Benefits of the Crusher

Durable Body Design
The welded body structure ensures exceptional strength and longevity. The crusher is equipped with body caps on both sides, allowing full access to the pendulum and rotor for maintenance.

Rotor Design
The rotor is manufactured from high-strength steel casting and undergoes heat treatment for enhanced durability. Areas prone to wear are reinforced with hard-filling welding. It is equipped with a ductless flywheel opposite the pulley, which balances the load and ensures even operation. The rotor’s bi-directional design allows for uniform wear of components, extending maintenance intervals and reducing spare parts costs.

Pendulum Configuration
The crusher features two symmetrical pendulums, located on either side of the rotor. These pendulums are covered with crushing liners and have a geometry that narrows from the feeding point to the exit, ensuring linear size reduction.

Resilient Pallets
The pallets are designed to resist breakage and can be used on both sides, further improving longevity. They are self-centered and firmly mounted on the rotor body using special wedges and pallet holders, which prevent lateral movement and ensure stability.

High Abrasion Resistance
All wear components are made from manganese alloy steel castings with superior abrasion resistance. These parts are manufactured in sections for easy replacement and are securely bolted to the body.

Additional Advantages

• High Fine Material Output
  The crusher minimizes the production of oversized material, leading to a higher proportion of fine aggregate in the final product.

• Bi-Directional Operation
  The rotor’s ability to rotate in both directions reduces maintenance costs and allows for the production of two distinct product gradations with a single machine setting.

• Ease of Maintenance
  Both sides of the crusher are equipped with body covers that provide easy and safe access to the rotor and wear parts without requiring additional equipment.

• Quick Installation
  The crusher’s design facilitates fast and straightforward installation