Better Roads Digital Magazine
Issue link: http://read.dmtmag.com/i/239057
RoadScience Photo courtesy of Case Construction Equipment M Series dozers include best-in-class drawbar pull, increased horsepower ratings, fuel savings up to 14 percent, industry leading visibility, new versatile controls and a pressurized cab for optimal comfort, according to Case. The smaller 750M, designed primarily for the rental market, features a cooled exhaust gas recirculation engine also produced by Fiat. This emissions treatment requires diesel particulate filter maintenance but no end-user involvement in filling diesel exhaust fluid. See the line at Case's indoor exhibit at Booth No. 11722 in the North Hall and adjacent Booth No. 12012 or visit casece.com. The first selective catalytic reduction (SCR) technologies built into a dozer are part of Case Construction Equipments' M-Series line of dozers. drum provides practical advantages on difficult-to-compact asphalt mixes. This directly leads to achieving desirable smoothness and density results, BOMAG says. BOMAG is planning future TanGO introductions into other roller weight classes. For more information, visit go to No. 50675 in the Central Hall or BOMAG.com/us. Case SCR Exhaust Technology Case Construction Equipment introduced an innovative, low-maintenance, Tier 4 Interim emissions control system on a new line of dozers in October. The first selective catalytic reduction (SCR) technologies built into a dozer are part of the new M Series line of five dozers, which includes models ranging from 92 to 214 hp. Case is the first heavy equipment manufacturer to build proven selective catalytic reduction engine technology into a dozer to meet Tier 4-interim standards. The engines on the four larger models are built by Fiat Powertrain Technologies and offer advantages in terms of maintenance (no regeneration or diesel particulate filter to maintain) and fuel efficiency (some models experience fuel savings up to 14 percent). One of the greatest advantages of SCR in this application relates to machine performance, Case says. SCR is suited for dozers because it lets the engine run at peak performance under variable loads without compromising the power or drawbar pull that achieves the brute force required for earthmoving. In addition to the SCR technology, key features found on Volvo: Fuel Savings via ITS Volvo Construction Equipment manufactures and markets equipment for the road construction industry, including wheel loaders, excavators, articulated haulers, motor graders, asphalt milling machines and pavers, soil and asphalt compactors, backhoe loaders, skid steer loaders, compact wheel loaders and compact excavators. Coming to Volvo Construction Equipment will be Intelligent Transport Systems (ITS), which may reduce fuel consumption by up to 30 percent in certain applications while increasing safety. Hundreds of engineers at Volvo CE are making equipment as fuel efficient as possible, the company says. One area of Volvo technological development is wireless machine-to-machine (M2M) and machine-to-infrastructure (M2I) communication. Volvo CE has conducted tests to calculate the potential fuel savings M2M communication could bring to articulated haulers working in the quarry and aggregates segment. The project monitored a hauler, loaded with rocks from an excavator, traveling to the crushing site. The machine was fitted with an internal measurement system to verify the fuel consumption. The hauler was operated by different drivers, at both constant and varied speeds, with different amounts of idle time and both with and without stops along the way. Tests showed that when the hauler traveled faster than necessary to the crusher, and as a result had to wait before unloading, fuel consumption was up to 30 percent higher compared to when the hauler traveled at a constant speed and arrived at the optimum moment. Better Roads January 2014 9