Equipment World Digital Magazine
Issue link: http://read.dmtmag.com/i/946503
February 2018 | EquipmentWorld.com 48 ing on slopes or when approaching areas in the road where ground conditions are marginal, including flares, tie-ins or the reclaiming toward the road's edge," Den- nison says. "This helps improve machine stability by eliminating the need for the wheels to drive in marginal ground condition." The operator's cab on BOMAG machines provides climate control not only to improve operator comfort, which helps improve operator retention, but to pro- tect the operator and controls from the elements when recycling asphalt and stabilizing with additives. That improves safety as well as machine control longevity, according to Dennison. Model roundup Wirtgen The Wirtgen WR 200Xli, WR 240i and WR 250i models feature universal mixing rotors that enable both stabilization and recycling operations with the same machine. Variable rotor speeds and adjustable front and rear mixing chamber doors allow for gradation control while mixing at a depth of up to 20 inches. Precise, microprocessor-controlled injection systems meter the amounts of various additives in the mixing chamber – water, emulsion, foamed bitumen, lime and cement slurry. BOMAG The BOMAG RS 500 features FLEXMIX technology. This includes four optional breaker bar assemblies, each containing seven cutting teeth, mounted above the front rotor door and positioned opposite of mate- rial flow to improve asphalt material crushing and gradation. Above the rear discharge door, the operator easily controls positioning of the FLEXMIX adjustable door for flexible material mixing inside the rotor chamber. As the door moves closer to the rotor, more material is channeled back into the rotor for additional mixing and blending, which is advantageous when reclaiming thinner lifts or mixing in additives, the company says. Variable rotor speeds allow the operator to match rotor speed to the application, improving productivity and reducing tool and rotor wear, BOMAG says. A single toggle switch disables all machine functions and ensures that the rotor hood remains in position highway contractor | continued Caterpillar's RM500B Rotary Mixer