What Is an Impact Crusher and What Can It Do for You?

Dec 6, 2019

Recent Posts

Screening Plants and Systems for Serious Crushing Projects

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Wearing PPE and Crushing Safely

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An impact crusher, or impactor, is one of several types of crushing machines, including jaw crushers, hammermills, and cone crushers, that is manufactured for the purpose of processing raw materials, like concrete or asphalt, among many others, to reduce them in size.

Used in a wide variety of applications, including aggregate crushing, asphalt crushing, and concrete crushing, etc., an impactor is unique to its crusher counterparts in that it breaks apart rocks and stones by rapidly striking the material as opposed to utilizing a pressure force.

The mechanical structure of an impact crusher is defined by its rotor, the primary instrument for breaking apart material. The rotor is set among mounted plates, anvils, or aprons, inside a heavy housing; these aprons or anvils serve to bear the impact of the materials being processed and further break them apart.

What Is an Impact Crusher and What Can It Do for You?

There are two styles of impact crushers: horizontal shaft impactors (HSI) and vertical shaft impactors (VSI). The distinguishing feature between these two styles is the physical orientation of the rotor within the impactor.

The rotor of a horizontal shaft impactor is oriented horizontally and utilizes blow bars or hammers to strike flowing material with great force in order to break it. Horizontal shaft impactors are useful as both primary or secondary crushers and are able to crush a wide range of materials, from soft rock to much harder materials.

When a horizontal shaft impactor operates, the rotor spins around its shaft at a high velocity. As material flows into the chamber, the rotor’s blow bars repeatedly strike the materials, breaking them apart and sending them into the hanging aprons, resulting in additional reduction.

A vertical shaft impactor’s rotor is oriented vertically, and instead of relying on striking material with great force, it relies on launching material at high speeds to be impacted upon anvils or even other rocks configured around the perimeter of the rotor. Vertical shaft impactors are limited in the feed size they can process and are used as secondary or tertiary crushers only.

When a vertical shaft impactor operates, material is fed into the chamber from above the spinning rotor. The material enters the rotors rapidly moving wings and is hurled outward to be broken upon the peripheral anvils or rocks.

The final size of material being processed by an impact crusher is partially determined by the rotational speed of its rotor. As the rotor operates at higher velocities, material is reduced to a finer and finer specification. Additionally, how closely the aprons are in relation to the rotor can further determine material size; the closer the aprons, the finer the output.

The impact crusher is popular because it can be used for a variety of material processing applications in a variety of configurations, making it a versatile crusher to own. From soft rock to hard rock—as a primary crusher or secondary crusher—the impact crusher can be custom calibrated to ensure your success.

Eagle Crusher UltraMax® Impactors are the most durable and reliable horizontal shaft impactors on the market today. Originally designed to process the toughest high-volume steel rebar with ease, UltraMax® Impactors outperform the competition across multiple applications—aggregate, asphalt, concrete recycling, and more.

Performing the job of a primary and secondary crusher in one unit, UltraMax® Impactors are built for high volume production and ultra-high reduction rations to produce high quality cubical product with minimal fines.

For complete UltraMax® Impactor product specifications, please visit its product page.

Serious Projects Demand Eagle Crusher.

Eagle Crusher consistently leads the industry in new product innovations. We stand by our products with unsurpassed service and support to make your job easier.

Get serious. Get Eagle Crusher.

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Previous Posts

Screening Plants and Systems for Serious Crushing Projects

The most effective crushing operations are often complemented by an appropriate configuration of screening plants and systems that can best sort and stockpile the material being processed as efficiently possible. Eagle Crusher manufactures a comprehensive range of...

Which Screening Setup Can Optimize Your Crushing Operation?

Portable plants and other crushing equipment can come in many shapes and sizes depending on the needs of a producer. Just as integral to a crushing operation as an impactor or jaw crusher are the screens being utilized to sort product. With so many options and...

Eagle Crusher Company Updates – April 2021

Eagle Crusher Names New Del. and MD. Crushing and Screening Plant Distributor Eagle Crusher Co., Inc. is proud to announce GT Mid Atlantic as the new Eagle Crusher distributor for the states of Delaware and Maryland. The company will represent Eagle Crusher’s full...

Following Lockout-Tagout Procedure to Protect Crushing Personnel

In order to protect team members who are performing maintenance on crushing equipment like portable plants, energy must be completely removed and disconnected from relevant components to make maintenance safe through a process known as an isolation procedure or more...

Optimize Your Crushing with Eagle Crusher’s Configurable Designs

Working in the crushing industry can lead to some unique challenges on the job site. How to best lay out equipment to optimize production? What type of crushers are needed to reduce the material efficiently? Will one crusher be enough for the job? Eagle Crusher is...

Properly Feeding Material for Crushing

On a crushing site, there are many moving pieces and parts that work together to ensure that production is optimized and remains issue-free, like the loaders, the crushers, screening plants, conveyors, etc. Loaders transporting material to the crusher have the...

Reselling Portable Plants & Buying Preowned Crushing Equipment

Portable crushing plants like those that Eagle Crusher manufactures are engineered to be high quality and heavy-duty products in order to withstand the extreme amounts of wear and tear associated with crushing and screening materials like aggregate, concrete, and...

Eagle Crusher Company Updates – March 2021

Eagle Crusher Exhibits at C&D World 2021 The Eagle Crusher sales team exhibited our comprehensive line of crushing equipment and services at the C&D World 2021 Conference & Exhibition, hosted at the AT&T Hotel and Conference Center on March 21...

Wearing PPE and Crushing Safely

Heavy material like aggregate and concrete blocks can move around a crushing site quickly, from the loader, into an impactor, and out across conveyor belts. All of this moving material, paired with the site’s heavy machinery, can present job hazards. Crushing teams...

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