Better Roads Digital Magazine
Issue link: https://read.dmtmag.com/i/134675
RoadWorks tored, and replaced only when it is truly at the end of its life. The wireless system can measure up to 100 hoses, and transmits data once every seven hours. The compact Atlas Copco SB 702 breaker has a solid one-piece housing body. Both the percussion mechanism and guide system are integrated into a single block of steel, and the accumulator is well projected from jobsite knocks. Capable of being installed on a wide range of carriers, the unit has a wide flow range. Stress and wear on the working tools is minimized by double tool retainer bars. JCB's JS220 Tier 4 Interim excavator is the company's first heavy model powered by the company's 4.8-liter Ecomax engine, which does not require any after-treatment. The 172-horsepower excavator has a standard 7-inch LCD color monitor, a 10-percent improvement in fuel economy and offers lower cab noise levels. Reaching up to 180 feet, the new Genie SX-180 self propelled telescopic boom lift offers an 80-foot horizontal reach and a 3-foot platform that can hold up to 750 pounds. The 10-foot jib rotates SayWhat? 180 degrees. The SX-180 can be driven at full height and the X-chassis extends and retracts to provide work stability and a low transport profile. The 2.1 version of Trimble's 3D PCS900 paving control system helps contractors mill smooth, high quality surfaces. Combined with the SPS930 Universal Total System, the system minimizes machine stops and aids milling job continuity and accuracy. The PCS900 guides the milling drum to maintain grade, and the SPS930 automatically transitions to the next total station without the stop required by a manual transition. The system is portable, so it can be used on several machines and jobsites. Bosch Rexroth's electrohydraulic pump control system uses "virtual bleed off" technology, or VBO. The new pump control system pumps only the amount of oil needed and combines lower fuel consumption with fast response times and dynamic system stability. The company also introduced its hydraulic start/stop solution. This system uses variable valve pumps and accumulators to store and release energy to hydrostatic drives and hybrid systems. The energy storage systems can reduce fuel consumption in machines or applications with high idle times. If no energy is required for the machine's driving or working functions the engine automatically shuts off, if it has stored enough energy for a hydraulic restart. "We're not going to toll our way to prosperity in this country ... but toll roads can be a tool in some cases to add capacity." – Secretary of Transportation nominee Anthony Foxx at his confirmation hearing. Wirtgen has combined the basic design of a concrete/ asphalt milling drum with a vibrat- ing roller studded with carbide tipped teeth to create the Hamm H25i VC crusher drum that destroys the material underfoot while on the move. Applications for this hybrid technology include breaking or pre-crushing rock, breaking up concrete road surfaces, crushing and compacting mixed soils, compacting cohesive soils and compacting during cold recycling and stabilization. The drum is expected to be available in North America this fall. With a 43-foot maximum platform height, the Snorkel S4309RT has twin 51-inch deck extensions, providing a total 6-by-21-foot-8-inch working area. The machine is capable of lifting 1,500 pounds. Ditch Witch's JT60 all-terrain horizontal directional drill will get a North American reveal at ICUEE this fall in Louisville. The drill features what Ditch Witch calls an "industry-exclusive, patented twopipe drilling system." Powered by a 200-horsepower Cummins Tier 4 Interim engine, the drill has 60,000 pounds of thrust and pullback and 9,000 pounds of rotational torque. A dual-pivot drill frame allows multiple, stable entry angles. The R2 hydromechanical variable transmission from the Dana Rexroth joint venture promises to increase machine fuel efficiency up to 25 percent compared to similar machines with torque converters. The R2 is a modular platform with software controls that enable direct or remote mounting, flexibility in shift control and drive strategy parameters, and the deployment of up to three PTO. The R2 system is designed to reduce ownership and operating costs, particularly for frontend loaders, motor graders and other off-highway applications requiring 180 to 260 horsepower. v 6 June 2013 Better Roads Roadworks_BR0613.indd 6 5/31/13 11:05 AM