The Powerful Secondary Heart of Your Plant in High Cubic Rate Aggregate Production

The most critical stage in crushing-screening (crusher) plants is bringing the materials that have passed through the primary crusher to asphalt and concrete aggregate sizes at international standards. Krismak Secondary Impact Crusher series is designed to produce material in the flawlessly cubic form most demanded by the market, processing medium and high-hardness materials (limestone, river stone, dolomite, etc.) with a high reduction ratio.

Thanks to its advanced rotor design, adjustable pendulum (curtain) mechanism, and high crushing efficiency, Krismak secondary impact crushers provide maximum product standards with minimum fine (dust) material ratio.

What is a Secondary Impact Crusher and How Does It Work?

A secondary impact crusher is a crushing machine that operates at the secondary stage of the plant and uses impact energy with the highest efficiency. Intermediate-sized materials coming from the primary crusher or from direct feed are subjected to the hard impact of the paddles (hammers) on a heavy rotor rotating at high speed. The stones propelled by the rotor rapidly reduce in size by hitting the specially adjustable crusher plates (pendulums) on the upper and lower body of the crusher.

Thanks to the inner crushing chamber geometry optimized by Krismak engineering, stones are crushed not only by hitting the plates but also by hitting each other inside the chamber (with an auto-grinding effect). This both reduces wear costs and increases the cubic quality of the product.

Outstanding Features of Krismak Secondary Impact Crushers

Flawlessly Balanced Heavy-Duty Rotor: The rotor manufactured from high-quality welded construction or cast steel has passed computer-aided static and dynamic balance tests. It provides a continuous and vibration-free operating power thanks to its high moment of inertia.

Advanced Hydraulic Pendulum Adjustment System: A spring-assisted hydraulic adjustment mechanism that enables precise adjustment of the product output size and gradation (material size distribution). This system also acts as a safety fuse against uncrushable foreign objects that may enter the machine.

Dual-Use Chrome/Manganese Paddles: Special alloy (high chrome or manganese) paddles are used to maximize wear life. The symmetrical design of the paddles allows them to be turned over and used on both sides, halving the operating wear costs.

Hydraulic Body Opening for Easy Maintenance: The rear body of the machine opens in seconds thanks to powerful hydraulic cylinders. This allows paddle replacement, liner inspection, and periodic maintenance to be carried out in the fastest and safest manner in job site environments.

Wear-Resistant Inner Liners: The inner body surfaces are completely armored with easily replaceable, high wear-resistant hard liners.

Wide Range of Applications and Sectors

Krismak Secondary Impact Crusher solutions play a leading role especially in high-quality aggregate production lines required by ready-mix concrete and asphalt producers:

Quarries and Aggregate Plants: Concrete aggregate (crushed stone), asphalt aggregate, and road infrastructure material production.

Cement and Lime Industry: Bringing raw materials to the ideal size before grinding mills at the secondary stage.

Limestone, Dolomite, and Gypsum Quarries: High-capacity crushing of medium and high-hardness industrial minerals.

Why Should You Choose Krismak Secondary Impact Crushers?

With our international production standards, first-class electrical and automation infrastructure (Siemens, Schneider, etc.), and modular chassis solutions, we are the long-term reliable partner of operations in the global market. Krismak accelerates the return on investment (ROI) period of your investment by selecting the most accurate rotor speed and paddle combination according to the capacity requirements of your project, and offers uninterrupted after-sales spare parts and service support.

For Flawless Cubic Product and High Efficiency > Contact our expert engineering team immediately for the most suitable secondary impact crusher models for your plant’s hourly tonnage targets and feed material structure, technical catalogs, and current secondary crusher prices.