What Your Rock Crusher Would Tell You if it Could Talk…

Oct. 05, 2020

—Out of the box, I am not designed to process every rock application on the planet! 


Each crusher application is specifically designed to handle a certain type of rock, like flat and elongated pieces of rock, or square and blocky rock.  Consider the geology of the rock, how hard or how soft it is, and how much energy it will take to break the rock.  Does your crusher really have enough horsepower for the task at hand?  Do you have the right cavity liner for abrasive rocks? Asking too much of your crusher can lead to reduced performance or failure. 


—I like my rocks dry!  And no metal on the side, please. 


All compression crushers—cone and jaw crushers—perform best in dry conditions. The rate of processing will be slowed during rain and high moisture. Crushers are not designed to process a lot of extraneous organic material, like clay or wood and metal remnants in the feed material can be catastrophic. 


—My feed material should be just right—not too coarse, and not too fine. 


All crushers perform best with well-graded material. Some crushers will operate best with a feeder to deliver a consistently blended amount.  properly sized hopper with a conical pan feeder tied to automation will allow you to achieve the best feed arrangement and performance.  


—Please keep my oil clean! 


Operating with a lubricant that is contaminated with rock, dirt, metal, or moisture will lead to bearing failure.  To prevent residue build-up, and excessive wear-and-tear, regular monitoring is a must!  Check the air filter, countershaft breather, cooler system, and sump oil trash screen weekly and record and track hourly oil temperature differential, and pressure.  For best results, invest in an oil-sampling program every 200 hours to keep your crusher running smoothly. 


—Keep a close eye (and ear) on me! 


Look and listen to your crusher every time you use it.  It will communicate a problem before it fails.  Review all areas of the machine including under the frame and inside and outside of the crusher, especially while replacing the chamber liner or during the bi-annual internal review.  Remember to look for material stream wear points, or uneven profile wear; look and listen for vibration, noting both movement and sound. 


—Safety first! 


Please always follow the safety and operational guidelines outlined within the original manufacturer owner’s manual. 

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