Equipment spotlight: Haul trucks
By Rock to Road Staff
By Rock to Road Staff
Rock to Road looks at the latest trucks for hauling applications in pits and quarries.
The latest E-II Articulated Dump Trucks (ADTs, pictured above), including the 410E-II and 460E-II models, incorporate an enhanced design with customer-driven features, resulting in greater operator comfort, reduced fuel burn, and lowered operating costs. The E-II ADTs feature a redesigned dump body and an updated operator station to maximize comfort during operation. An updated side sheet design makes the load height the same front to back, while the widened bin provides additional tire coverage and easier loading. Additionally, improved fuel consumption reduces fuel burn when operating in Normal mode and is further enhanced in Eco mode.
Built for mining, quarries and aggregates, Komatsu’s HD785-8 off-highway truck has 1,200 HP (849 kW) and a payload capacity of 92.2 metric tons. With excellent travel performance on grade, and wet multiple disc brakes on all wheels, the HD785-8 delivers remarkable downhill brake retarding performance. The new cab is comfortable during long shifts, and its fast acceleration out of the pit can increase production per hour. Its tight turning radius of 10.1m, means the HD785-8 provides exceptional maneuverability for loading and positioning to dump. KomVision all-around machine monitoring system provides a bird’s-eye view of the working area.
Built specifically for mining and quarry applications, the Volvo R100E rigid hauler drives down operating costs for customers by boosting productivity, uptime and operator comfort. The hauler offers a true 95-tonne payload and a 60.4 m3 (79 yd3) capacity V-shaped body for optimum load retention and minimal material carry-back, which allows customers to spend less per haul. Plus, the fuel-efficient R100E is powered by a 783kW (1050 hp) Tier 4 Final engine, with a combined drivetrain to provide high torque capabilities, unparalleled pulling performance and class-leading rimpull for optimum travel times.
The Doosan DA45-5 articulated dump truck is designed with a front-mounted turning ring to provide equal weight distribution to the front axle even during maximum steer articulating. This, together with a unique free-swinging rear tandem bogie, ensures equal distribution of weight to each wheel and allows permanent 6-wheel contact and drive for equal power distribution and excellent performance on difficult terrain. The front-mounted turning ring, the tandem bogie and the truck’s sloping rear frame results in exceptional rough and soft terrain capabilities and avoids the need for electronic aids such as traction control.
Built on the Cat 777G truck platform, the new Cat 777G Water Solutions truck offers mining and quarry operations an innovative and smarter method of controlling haul road dust. Integrating truck, tank, and water delivery system, connected with technology, the 777G from Cat Water Solutions helps solve overwatering and underwatering issues. The Cat Water Delivery System (WDS) combined with Cat MineStar Edge connectivity helps operations manage the site more safely and productively with scalable levels of technology. The new Cat 777G truck comes standard with an integrated, 76 000-litre (20,000-gal) Cat-branded water tank, spray system, splash guards, fill chute and rock ejectors. Adaptive Economy Mode uses up to 13% less fuel than full power mode, and the water cannon operates at engine idle speed, further reducing fuel consumption by up to 50%.
The Mack Granite offers powerful choices. It can be equipped with the 11-litre Mack MP7 or the 13-litre Mack MP8 engine while offering all-day comfort improving driver productivity. Critically, it benefits from available axle forward and back models with single, tandem and tri-drive configurations, and the Granite can be customized with multiple steering, drive and auxiliary axle combinations. The Mack mDRIVE HD heavy-duty automated manual transmission is standard on the Granite, and is available with special low-gear ratios—including the standard 13-speed and available 14-speed version—and multi-speed reverse gears to fit any job.
Terex Trucks has unveiled its new name: Rokbak. The Scottish manufacturer showed off its new brand at a launch event on Sept. 1, and says the new name underscores the company’s delivery of powerful articulated haulers. Since the company joined the Volvo Group in 2014, it’s been making continuous improvements, says Paul Douglas, managing director. With their foundation in the predecessor models from Terex Trucks, the Rokbak 28-tonne payload RA30 and 38-tonne payload RA40 are the most productive and efficient articulated haulers the company has made. As part of the new brand launch, the machines now come in Rokbak colours and livery. The company says the RA30 and RA40 deliver better fuel economy, lower emissions, improved safety and greater durability. In product design, the company has introduced Stage V engines for better fuel efficiency. Other improvements include a new transmission on the 28-tonne (30.9-ton) machine, and the introduction of the Haul Track telematics.