Since patenting the first Single Roll Crusher in 1894, McLanahan has become an expert in the design and manufacture of all styles of Roll Crushers. All McLanahan Roll Crushers provide substantial return on investment by operating at low cost and maximizing yield by generating minimal fines. The rugged designs stand up to the toughest mineral processing applications while providing safe, simple operation. These crushers are also versatile, allowing for adjustments in roll speeds and gap settings to meet most any application requirement.
Single Roll Crushers are primary crushers that provide a crushing ratio of up to 6:1. They reduce materials such as ROM coal, mine refuse, shale, slate, gypsum, bauxite, salt, soft shale, etc., from large size particles to a medium size, while producing minimal fines. Designed with an interrupted opening between the roll teeth and corresponding grooves in the crushing plate liners, they are also extremely effective in reducing slabby materials.
Double Roll Crushers provide a 4:1 reduction ratio. They are typically used as a secondary or tertiary crusher for materials such as ROM coal with refuse, limestone, gypsum, trona, shale, bauxite, oil shale, clean coal, coke, salt, quicklime, burnt lime, glass, kaolin, brick, shale, and wet, sticky feeds. Each machine is custom engineered with roll elements and tooth patterns selected depending on the application requirements to produce a cubical product with minimal fines.
Triple Roll Crushers are ideal for producers who want to accomplish two stages of reduction in one pass. They can be used in coal, salt, coke, glass, and trona operations, among others. Triple Roll Crushers combine a Single Roll Crusher with a Double Roll Crusher to form a crusher that is capable of achieving a 6:1 reduction ratio in the primary stage and a 4:1 reduction in the secondary stage while producing a cubicle product at high capacity.
Quad Roll Crushers are ideal for producers, including those with preparation plants, who want to accomplish two stages of reduction in one pass. They can be used in coal, salt, lime, pet coke and potash operations, among others. Quad Roll Crushers are capable of achieving a 4:1 reduction ratio before dropping crushed material to the secondary stage crusher for an additional 4:1 reduction to make the final product.
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In 1968, Potash Corp. began producing potash at its Allan site, which is located 30 miles east of Saskatoon, Saskatchewan in Canada. The operation consists of both an underground operation and a surface processing plant. The underground operation mines potash ore from layers that are deep beneath the surface – about 3,100 ft. underground. From there, ore is hoisted to the surface and processed to make potash fertilizer. READ MORE
Since the mid-1960s, this mine in Vernal, Utah has been producing phosphate for agriculture fertilizer. In 2003, the J.R. Simplot Company became sole owner of the property and formed Simplot Phosphates, LLC. The three key ingredients used in the production of this fertilizer are ammonia, sulfur and phosphate ore. READ MORE