Equipment World Digital Magazine
Issue link: http://read.dmtmag.com/i/440012
EquipmentWorld.com | January 2015 17 Boost effi ciency when transporting material with Doosan's 365-net-horsepower DA30-5 and 490-net-horsepower DA40-5 articulated dump trucks, which feature fuel-effi cient Scania DC9 and DC13 engines, respectively. The 51,588-pound DA30-5 has a 61,729-pound payload rating with a 23.3-cubic-yard heaped capacity, 9-foot, 10-inch loading height and a maximum speed of 36 mph. The 71,107-pound DA40-5 has a payload rating of 88,185 pounds, a 34-cubic-yard heaped capacity, a 10-foot, 8-inch loading height and maximum speed of 33 mph. Confi g- ured with a high-pressure common-rail fuel delivery system, cooled exhaust gas recirculation, selective catalyst reduction and a diesel oxidation catalyst, the 28- and 40-metric-ton weight class trucks use diesel exhaust fl uid injected into the exhaust sys- tem to transform NOx into water and nitrogen. The trucks have a new mass airfl ow sensor and exhaust brake that work together to reduce emissions. The mass airfl ow sensor improves airfl ow management and optimizes fuel delivery, while the exhaust brake maintains consistency in engine temperatures at lower engine speeds, reducing harmful emission levels. Fuel effi ciency testing for the trucks has been recorded at an average of just 4.49 gallons per hour for the DA40-5, and 3.96 gallons per hour for the DA30-5. The DA40-5 also has a new bolt-on rear differ- ential, and improved gear ratios that deliver reduced axle speed, longer component life and lower fuel consumption. Vibration has also been reduced. EDITOR'S PICK EDITOR'S PICK LONG-LIFE DPF John Deere has expanded the company's G-Series with the 300G LC excavator, which delivers 19 percent more horsepower and 17 percent more swing torque than its predecessor, the 290G LC. The 30-ton machine, designed for contractors in the underground, roadbuilding, energy, commercial building and pipeline industries, has a 223-horsepower Tier 4 Final PowerTech PVS 6.8-liter engine and features a DPF that can go up to 15,000 hours before ash removal. New features include a larger hood for improved engine access, a nine-pin diagnostic connector in the cab to reduce testing time for technicians, single-side ground level fl uid fi lter service and sensor mounting brackets welded to the boom, arm, dogbone, counterweight and mainframe for im- mediate installation of grade reference systems. A programmable thumb attachment is available, allowing operators to program oil fl ow for thumb attachments with the monitor. marketplace | by Amy Materson | AMaterson@randallreilly.com LOWER COST PER TON