Hard Choices

by / Friday, 01 November 2013 / Published in Blog

Know your Application Before Picking your Crusher


By Sean Donaghy, National Sales Manager

Customers ask for recommendations frequently. We follow it up with several questions about their application and material. Because of the variance of crushers that exist, there seem to be one tailored for every specific application or material.

But one of the most critical factors of finding the appropriate crusher is the hardness of the material you’re putting through your machine. The hardness is typically measured in compressive strength, or the maximum force that material can withstand before breaking. As an example, hardness levels can range from that of concrete at 7,000 psi to 50,000 psi for ores or other hard materials – which influences the specific crusher for the operation.

Jaw crushers can handle hard, abrasive materials such as granite, ores or recycled concrete. Horizontal Impact Crushers, on the other hand are ideally suited for soft to medium rock.

That puts contractors who are continually working with different material in a tough spot.  They might consider matching up a jaw crusher with an impact crusher to get the best of both worlds – efficient initial sizing paired and uniform product sizing.