Similarly, excavators, because of their superior digging power, are sometimes used to load naturally fractured rock and unconsolidated materials directly from the mining face without blasting. But wheel loaders, because of their mobility, are also used in load-and-carry applications in which the machine loads the bucket and carries the material to an in-pit crusher or a portable screening plant. If this stage of the process is not planned effectively, production goes down and costs go up.įront-end loaders, also called wheel loaders, and hydraulic excavators most commonly scoop blasted material from the quarry face and transfer it to haul trucks. Front-end loaders and excavators usually perform the next step of the process - loading haul trucks. Aggregate processing may begin with drilling and blasting, but blasted material isn’t going anywhere until it is moved from the muckpile to the processing plant.
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