Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.
Superior Industries' patent-pending Liberty® Jaw Crusher processes aggregates in stone, concrete, asphalt, and ore applications. Functioning as a primary crusher in mining and aggregate applications, the unit compresses material as it travels down the increasingly narrow angle between the crusher jaws.
An impact wrench (also known as an impactor, impact gun, air wrench, air gun, rattle gun, torque gun, windy gun) is a socket wrench power tool designed to deliver high torque output with minimal exertion by the user, by storing energy in a rotating mass, then delivering it suddenly to the output shaft.
Available in 200-500 horsepower models, the Patriot® Cone Crusher features our in-house Vantage® Automation, which monitors and controls crusher parameters.The Patriot Cone Crusher is backed by the industry's first two-year standard warranty, in addition to one-year wear parts protection.
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