Pit & Quarry, November 2015
CRUSHING SECONDARY BREAKING Selecting a hydraulic breaker Best practices for finding the right features and options for the task at hand A ggregates producers face an ever increasing number of options when selecting a new hydraulic breaker The breaker market has grown tremendously in recent years to include several makes and models with tools engineered to reduce boulders dig trenches and demolish concrete With so many choices today it may be easier for you to select a breaker that is compatible with your existing carriers However this approach can present some limitations because some hydraulic breakers that are fit to existing carriers may not have the capabilities to manage the material you work with in your applications You might have greater success and longevity with your hydraulic breaker and your carrier by making selections suited to your intended purposes instead In recent years hydraulic breaker technologies have evolved rapidly to include advancements that not only optimize breaking efficiency and reduce operating costs in mining and aggregate applications but also allow operators to perform a growing number of tasks in mines and quarries This combination of technology and versatility means more choices when selecting a hydraulic breaker The following are five best practices for choosing a hydraulic breaker 1 Match the breaker to the project Simply attaching a larger breaker to your excavator will not guarantee better results on a jobsite When it comes to oversized boulders there is a direct correlation between the size of the breaker and the composition and size of the rock When trying to break rocks it is best to match the breaker to the work For maximum efficiency size the breaker to the project and do not break rocks into pieces smaller than necessary This cuts down on the general wear and tear of the breaker and prevents flooding a crusher with excess product produced by the breaker 2 Choose the right tool for the job The life of your breaker depends on using the right tool for the type of work being performed For instance contrary to popular opinion the blunt tool is best for most oversized breaking as it provides better positioning and transmission of the shockwave Not all tools are available for every breaker model so be sure to select a breaker that accepts the most commonly used tools for the job In aggregate applications operators often gravitate to blunt tools and chisels These two types of hydraulic breaker tools with their distinctly different heads provide the best performance for managing boulders and other larger material in the early stages of mine and quarry operations Blunt Tools This tools f lattened head is designed to direct the force of a blow equally in every direction By spreading the energy out it tends to shatter the surface which creates cracks and accelerates the separation of BY JAMI E JACKSON 20 PIT QUARRY November 2015 www pitandquarry com
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