Pit & Quarry, May 2010

Dump trailer showcases hybrid concept East Manufacturing has combined the advantages of a square box dump trailer with the advantages of a halfround dump trailer and joined them to form its newest Genesis trailer The company focused on designing a dump trailer with a lighter tare weight like a half round yet with the better handling and stable dumping characteristics of a square box dump trailer The result is this hybrid concept a square box trailer with a round bottom a durable dump trailer with the advantages of both kinds of trailers and a new look for dump trailers www eastmfg com H A U L I N G ADTs feature onboard weighing system John Deeres four Series II articulated dump trucks ADTs feature onboard weighing systems tire pressure monitoring systems and a host of control and cab changes designed to enhance comfort and productivity All D Series models are six wheel drive units that provide powerful traction in demanding conditions They are designed for maximum productivity increased uptime and low daily operating costs particularly in fuel efficiency with Tier 3 certified engines ranging from 265 to 413 hp Onboard weighing systems are standard equipment on the trucks They give operators overload protection with mirror mounted lights that alert the loading operator when the truck is nearing capacity www johndeere com Quarry truck body delivers extended life lower costs Caterpillar has developed a new hardened steel quarry body for select models of Cat trucks to extend wear life and decrease cost per ton in appropriate applications The quarry body features 400 Brinnell steel which resists abrasion and provides superior durability without additional weight or liner systems the company says Eliminating the need for liners also eliminates the replacement costs and downtime associated with their maintenance The quarry body is designed to handle low to medium density materials that have low to medium abrasiveness It is ideally suited for limestone quarries where oversize stone is no larger than 2 to 3 ft in diameter The quarry body flat floor configuration enables the operator to meter loads when feeding crushers The flat floor body retains loads well when hauling on roads with grades in the 8 to 12 percent range The new body is being introduced for the Cat 770 772 and 775F rigidframe trucks The payload class of each truck model respectively is 40 tons 50 tons and 70 tons www cat com Tarp system fits dump bodies trailers up to 38 ft long Shur Co s Arm Matic aluminum flip tarp system is designed to fit dump bodies belly dumps and end dump trailers up to 38 ft long with designs available to fit nearly every box style on the market The system offers a one piece extruded arm design and easy installation The extruded aluminum arms and windshield are anodized for improved wear and corrosion protection The Arm Matic has several spring configurations available including fourspring and five spring side mount configurations and three different underbody spring configurations www shurco com 12 PIT QUARRY May 2010 www pitandquarry com