Which Blow Bars Are Right For You?

Jun 21, 2022

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Which blow bars are right for your job?

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.

Many types 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.

Eagle Blow Bars

Which metallurgy should you pick?

High Chrome 

Great bar for small feed size and minimal steel, Excellent Abrasion Resistance.  

Typically used as a Primary in Asphalt or as a secondary where feed size is small.

 

High Chrome With Ceramic 

Same benefits as the above, however the ceramic can allow the lifetime to be increased by a factor of 2 to 4 times.  

 

Hybrid Alloy 

Similar to the High Chrome bars, but for a medium size feed.  

Excellent Abrasion Resistance and fair impact resistance.  

Typically used as a Primary in Asphalt or as a secondary where feed size is small/medium. 

 

Medium Chrome

Typically used as a Primary in Concrete, Sand and Gravel, Asphalt, Dolomite, Aggregate, Limestone and Shot Rock.  

Good all-around bar, where producers can crush multiple aggregates using the same bar, depending on feed size. 

 

Medium Chrome With Ceramic 

Same benefits as the above, however the ceramic can allow the lifetime to be increased by a factor of 2 to 4 times.  

 

Low Chrome

Highly resilient to breakage.

Typically used for Primary crushing applications in both recycle and aggregate, where breakage is an issue with other alloys. 

 

Low Chrome With Ceramic

Same benefits as the above, however the ceramic can allow the lifetime to be increased by a factor of 2 to 4 times.  

Eagle Crusher Blow Bars

 

What does wear have to do with picking the right blow bar?

The amount of chrome mixed into a blow bar can determine how susceptible the blow bar is to fracturing. When crushing reclaimed materials that might include metal contaminants 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.

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.

ULTRAMAX® IMPACTORS

Ordering your blow bars with Eagle Crusher

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.

Be prepared for unexpected downtime

There is no getting around the fact that your blow bars will eventually need to be replaced. However, what you can control is downtime. By ordering blow bars early, you minimize your downtime by hours, days, and potentially even weeks. Supplies are limited, so you want to make sure you have the parts on hand before you need them.

At Eagle Crusher, we’re here to help you do just that. For complete Eagle Crusher genuine blow bar product specifications, visit the blow bar information page. For more information about ordering, or if you have more questions about blow bars, reach out to our team members today.

Previous Posts

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Understanding the financial programs available to you For the past decade, interest rates have been at historical lows, however with increasing interest rates and inflation, new equipment prices might come as a shock. The use of the proper financial programs can help...

Counting Down to CONEXPO-CON/AGG 2023

Counting Down to CONEXPO-CON/AGG 2023 Eagle Crusher is excited to be exhibiting at CONEXPO-CON/AGG and to celebrate being only 4 months away from CONEXPO-CON/AGG, we’re taking a look at our last four times exhibiting at CONEXPO-CON/AGG.   2020 Exhibiting at...

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Preparing for Cold Crushing

Preparing for Cold Crushing It’s that time of the year again, where temperatures in the northern hemisphere start to drop. You know that crushing in the cold, or shutting down your operation, isn’t too far away. The easiest way for your operation to freeze is by not...

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CONEXPO-CON/AGG Preparation

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The Power of the Jaw Crusher

The Power of the Jaw Crusher While there are many different types of crushers to accomplish a variety of tasks, they generally fall within two types, impact crushers and compression crushers. One of the most common compression crushers on the market today are jaw...

Optimizing Hopper Feeder Safety

Optimizing Hopper Feeder Safety No matter how well crushing machines are designed to protect their operators from injury, manufacturers can never completely safeguard for moments of error, oversight, and even disregard. While it may be tempting to cut corners in order...

The Importance of Asphalt Recycling and Crushing

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