Aggregates Manager’s Top 25 RollOuts for 2008
Terex Pegson rolled out a series of new track-mounted crushers, including the large XA750 jaw. The XA750 is an entirely new jaw plant for larger quarry and recycling applications. Featuring a modular design for maximum capacity, it boasts a hopper/feeder section with live pre-screen that is removable for transport, if required. A one-piece hydraulically raised/lowered product conveyor, extended dirt and fines conveyor, and Jaques 55- by 35-inch jaw round out the plant.
Power and torque for heavy hauls
Mack Trucks, Inc. introduced its most powerful truck ever – the Titan. Designed for heavy transport and heavy construction applications, it is powered by the new Mack MP10 engine, a 16-liter workhorse with a top rating of 605 horsepower and 2,060 pound-foot of torque. Said to be the boldest-looking Mack model ever, it delivers the attitude and torque required for hauling the heavy loads, while incorporating advanced engineering for excellent visibility, productivity, and operator comfort.
Pulleys eliminate high-stress areas
Continental Conveyor & Equipment Co. rolled out its Continental JLV pulleys, which are designed around the application of keyless locking elements between end-discs and shafts. Widely used in high-tension pulley applications, the company expanded the use of the technology below the level of high-tension pulleys. Key advantages include the following: end discs are made from solid plates rather than weld-in hubs; the bending moment at the hub is reduced without sacrificing strength and durability; lighter pulley construction provides similar durability to heavier pulleys; and the units feature a stress-balanced design that matches stresses and deflections of all pulley components, thereby eliminating high-stress areas in the pulley.
Flat-deck screen solution
Major Wire Industries Ltd. showcased its newest innovation – Flex-Thane – a flat-deck version of its Flex-Mat screen media that is said to increase production. It combines the efficiency and performance of the Flex-Mat technology with the easy replacement of polyurethane and rubber panels to nearly eliminate blinding and plugging problems on flat-screen decks. It features independently vibrating wires bonded in place with polyurethane strips, which provide more open area for increased throughput, higher production, and better efficiency in hard-to-screen applications. Flex-Thane modular panels are available in 1- by 1-foot and 1- by 4-foot sizes.
Triple-deck screen plant
Extec’s S-7 is the largest model in its S-Series. The machine features the same double-screen design as the smaller units in the series, but boasts a triple-deck configuration as well as an additional side conveyor. Along with a large feed hopper with optional double-deck vibrating grid and a set of extended conveyors, these features are said to make the S-7 the most productive mobile screen in its class. With a transport weight of 85,142 pounds, the unit is powered by a Deutz BF4M 2012 diesel engine with 74.9 horsepower that meets or exceeds all known emission regulations.
Powerful hydraulic breaker
Weighing in at 10 metric tons, the HB 10000 – from Atlas Copco Construction Tools LLC – delivers 50 percent more impact energy than its HB 7000 unit. In combination with PowerAdapt, AutoControl, and other proprietary technology, the breaker is said to be a cost-effective production machine for primary rock breaking, as well as a viable alternative to certain drilling and blasting applications.
High-performance cone crusher
The new Raptor XL900, from FLSmidth Excel LLC, is said to offer a high-performing, cost-effective solution for medium- to high-tonnage aggregate operations. With its higher pivot point and larger crushing stroke, the XL900 delivers more crushing action from the first nip at the feed opening and through the chamber until the material exits the parallel zone. Designed for quarries needing a large secondary cone crusher, the XL900 has a maximum throughput of nearly 1,400 tons per hour and handles feed sizes of up to 14.57 inches. The active feed opening provides a desirable cubical product shape for higher yields of saleable material.
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