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Bomag BW 211 DH-5 Single Drum Roller Features Dual Pump Drive

Mon April 10, 2017 - National Edition
Bomag


Built for high-production compaction of mixed soils, gravel and rock fill at depths reaching 27.6 in. (70.1 cm), the BW 211 DH-5 roller features a balanced front-to-rear-frame weight distribution and high compaction forces that rival heavier class machines.
Built for high-production compaction of mixed soils, gravel and rock fill at depths reaching 27.6 in. (70.1 cm), the BW 211 DH-5 roller features a balanced front-to-rear-frame weight distribution and high compaction forces that rival heavier class machines.

Known for its power and production on heavy earthworks compaction projects such as landfill cell construction, roadwork and dams, the Bomag BW 211 DH-5 single drum vibratory boasts a dual pump drive system, allowing the roller to climb grades as steep as 60 percent. The efficient drive system dedicates one travel pump for drum drive and a separate pump for the rear axle, which includes no-spin differential lock, so the machine delivers enhanced gradeability in both forward and reverse travel directions, according to the manufacturer.

Built for high-production compaction of mixed soils, gravel and rock fill at depths reaching 27.6 in. (70.1 cm), the BW 211 DH-5 roller features a balanced front-to-rear-frame weight distribution and high compaction forces that rival heavier class machines. Its dual frequency, dual amplitude vibratory system matches compaction output to site needs. Setting the drum to 1,800 vpm (30 Hz) with amplitude of 0.075 in. (.2 cm) efficiently compacts high lift thickness. For increased productivity when compacting thinner lifts, the operator can set the vibration system to 2,040 vpm (34 Hz) and a 0.039-in. (.1 cm) amplitude.

The new BW 211 DH-5 roller is driven by the 128-hp (95.4 kW) Deutz TCD 3.6 L4 diesel engine, meeting Tier IV Final (Stage IV) emissions standards. By matching engine speed to the task at hand, standard ecomode speed control lowers fuel consumption by up to 30 percent versus operating at continuous high idle and reduces noise levels for more comfortable operation. Contractors can lower fuel consumption even more and reduce engine wear by equipping the machine with the optional Bomag ecostop function, which automatically shuts down the engine after a defined idle period.

The new machine design concept for the BW 211 DH-5 roller is focused on lowering total cost of ownership. In addition to the fuel-saving engine technology, contractors achieve savings through longer machine service intervals and maintenance-free component designs. The roller's simple, operator-friendly concept features a control panel similar to that of other Bomag compactors, reducing the time and cost for training new operators. Additionally, available compaction measuring technology, such as the optional Bomag economizer and terrameter, let the operator know when optimum soil stiffness is achieved, eliminating unnecessary fuel- and time-consuming passes and the potential for over compaction and costly material replacement.

The BW 211 DH-5's maintenance-free, 35-degree articulation joint requires no lubrication to improve machine uptime and features up to 12 degrees of oscillation to keep the drum and wheels in constant contact with the ground when encountering irregular terrain, improving compaction performance. The roller's wide-opening, hinged hood grants unobstructed access to the engine and components for fast servicing, while all cables are protected against damage to improve machine reliability. Reached from ground level, oil dipsticks, filters and machine fill points are quickly accessed to shorten the daily maintenance routine.

The roller's spacious cab offers all-around visibility of the work area to improve compaction efficiency and operating safety. A fully adjustable seat and adjustable steering wheel column provide a custom fit to each operator, and operating controls feature logical gauge positioning for self-explanatory operation, boosting comfort and productivity. Mounted on rubber buffers, the operator's platform isolates machine vibration from transferring to the operator for fatigue-free operation, even during long shifts.

For more information, visit www.bomag.com/us.




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