The size and shape of crushed rock is important when meeting the specifications of a particular job. This line up of tertiary crushers can help make it happen.

by Kerry Clines, Senior Editor

Stedman

Impactor with third crushing chamber

Stedman says that the Crush Plus Grinding Path System on its Grand Slam secondary horizontal shaft impactor creates a third crushing chamber to maximize one-pass product yield, minimize oversize, improve material soundness, and produce highly cubical product. The impactor series uses high-chrome metallurgy to increase wear life and reduce metal replacement costs.

Stedman

Multi-cage mill

Stedman’s “H” Series Multi-Cage Mill is available in four sizes up to 250 tons per hour with two-, four-, or six-row design. The company says the mill can crush, grind, pulverize, blend, and mix a variety of materials — wet, sticky, or dry. Air cannons are mounted at the intake and discharge to help prevent wet, sticky material buildup; heaters are installed on the grinder housing to help retard wet material buildup.

FLSmidth

High-performance cone

FLSmidth Excel LLC says its Raptor XL400 cone crusher is a high-performing, cost-effective, versatile solution for aggregate operations and is ideal for use following a jaw crusher to produce usable and salable aggregate for asphalt chips, road base, railroad ballast, and more. The crusher features a 52-inch-diameter head, a one-piece cast steel mainframe, advanced overload sensing technology to detect crushing force overload, and “fail safe” hydraulics to protect the machine from mechanical overload.