What Are Blow Bars and What Can They Do for You?

Feb 7, 2020

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Blow bars are thick slabs of metal, typically some mixture of chrome, that are cast for the purpose of effectively breaking apart material like asphalt, concrete, limestone, etc. Often in sets of 3 or 4, blow bars are inserted into an impact crusher’s rotor where they are able to strike material needing processed.

As an important component of horizontal shaft impact crushers, blow bars come into direct contact with material and provide a powerful impact force. HSI crushers and their blow bars are designed to fracture material quickly, resulting in high production rates and reduced costs-per-ton when compare to other types of crushers.

Many styles of blow bars exist, varying in size and metallurgy, which is determined by the type of material being crushed and the desired output. The range of metallurgies includes low chrome blow bars, medium chrome, high chrome, and also a hybrid alloy, each offering their own unique advantage when crushing materials.

What Are Blow Bars and What Can They Do for You?

The amount of chrome mixed into the design of a blow bar determines how well the part can withstand abrasive materials: the more chrome in a blow bar, like in high chrome bars, the more effective it can crush highly abrasive materials, like asphalt. Medium chrome blow bars are valuable for processing a variety of materials while low chrome bars can be useful for crushing aggregate and concrete.

On the other hand, the amount of chrome mixed into a blow bar can also determine how susceptible the blow bar is to fracturing. When crushing reclaimed materials that might include metal contaminates like rebar, high chrome blow bars are more likely to fracture. Meanwhile, low chrome bars are better at withstanding the impact of rebar and other metal contaminants.

As the rotor of a horizontal shaft impact crusher runs and material is fed into the crusher chamber, the material comes into contact with the rapidly spinning blow bars which strike them with a great force over and over. The repeatedly impacted material quickly fractures and reduces in size until it is the appropriate size to be released from the chamber.

Due to the repetitive crushing that blow bars endure, they will wear down over time. Their composition and how often they are used will determine how often they will need flipped or replaced. Stocking fresh blow bars so that material is being impacted by smooth, uniform edges will contribute to maintaining high production rates.

Developed by expert metallurgists and manufactured exclusively by Eagle Crusher, our genuine blow bars are designed to extend wear life, provide a perfect fit for your impactor, and increase production rates while decreasing costs-per-ton. Eagle Crusher blow bars are available in a variety of metallurgies to accommodate your unique crushing needs.

For complete Eagle Crusher genuine blow bar product specifications, please visit this page.

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Previous Posts

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...

Powerful Portable Crushing Plants for C&D Recycling

Recycling materials like concrete and asphalt collected from construction and demolition waste through the use of crushing equipment like portable plants is an industry that has seen tremendous success for its positive environmental impact and cost-saving results....

Sorting Rebar and Metal Contaminants When Crushing Concrete

In the crushing industry, C&D recycling has grown in popularity in recent years for its significant waste-saving results; millions of tons of concrete and asphalt are able to be diverted from landfills every year which results in big savings for companies and...

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