Aggregates Manager Digital Magazine
Issue link: http://read.dmtmag.com/i/674527
35 AGGREGATES MANAGER / May 2016 by Therese Dunphy | Editor-in-Chief | tdunphy@randallreilly.com SUPPLYLINES Which ADT is the Right Fit? Articulated dump trucks focus on payload, performance, and operating costs. The new CAT 730C2 is a 367-horsepower truck with a 31-ton payload capacity. Standard automatic traction control ensures effi- cient operation of the artic, which advances the design of the pre- decessor model with increased productivity, lower operating costs, and added rimpull/retarding capability. The Tier 4 Final machine is also available with an ejector-type body. The Cat 6F/R power- shift transmission electronically modulates clutch engagement pressures for smooth, positive shifts, while an engine-compression brake provides 60 percent more retarding force than the previous model. An optional Cat Production Measurement system calculates payload values using sensors located on the walking beam sus- pension and shows when the target weight is reached. Caterpillar | www.cat.com The DA40-5, from Doosan, offers excellent driving stability, equal weight distribution, and superior traction. Doosan also says it is among the most fuel-efficient off-road trucks in the industry. The 490-horsepower, Tier 4 Interim machine has a rated payload of just over 44 tons. The unit's turn- ing ring is located in front of the articulation point to ensure equal weight distribution to the front wheels in all situations. Two state-of-the-art, lim- ited slip differentials ensure excellent traction. A free-swinging rear tan- dem gear-driven bogie keeps the rear wheels in contact with the ground for a smoother ride in rough terrain. Doosan | www.doosanequipment.com More power and bigger payload Excellent traction in rough terrain The largest of John Deere's Tier 4 Final articulated dump trucks is the 460E. It features 481 horsepower and is said to deliver impressive power and torque with an excellent power-to-weight ratio and cycle time. A ZF transmission includes eight forward gears and four reverse gears, as well as a high-capacity retarder to increase service brake life. An updated cab is sealed and pressurized to keep out dust and noise. Other cab features include push-button start, low-effort push-button controls, air-suspension heated high-back seat, and optional premium radio with Bluetooth auxil- iary input and satellite radio capacity. An optional weighing system uses mirror-mounted LED load indicator lights to indicate capacity. John Deere | www.johndeere.com Cab updates may improve operator efficiency NEW