Volvo introduces compaction heavyweights

Highly versatile and able to tackle a variety of applications, Volvo’s heavyweight double-drum asphalt compactors, the DD110B, the DD120B and the DD140B, can handle the biggest tasks, from major highway work to airport runways.

High centrifugal force, high frequency and optimal drum weight all combine to produce the energy necessary for excellent compaction and high machine productivity. The DD110B, DD120B and DD140B offer dual amplitude settings for easy operating, allowing the operator to quickly and simply adjust drum forces when material depth changes. For even greater versatility, eight amplitude settings are also available as an option, allowing the machines to be easily and regularly reset as circumstances vary. For example, if material conditions warrant an increase in dynamic drum force, changing the amplitude setting will result in the required finished job quality with fewer passes. With vibration control HFA, maintaining the proper impact spacing is made simple with a system that keeps the machine’s maximum matched to vibration frequency.

Powerful efficiency

These compactors are equipped with the Volvo D4 engine, which conforms to Tier 4i/Stage IIIB legislative emissions standards and provides strong, fuel-efficient performance with power in reserve. Propulsion comes in the form of a closed loop hydrostatic parallel circuit to both drums, which are fitted with heavy-duty radial piston motors. Travel speeds go up to 11.3 km/h (7 mph), and vibration automatically engages or disengages when operator-selected speed thresholds are reached. Further help comes in the form of automatic eccentric rotation, which matches eccentric rotation to the direction of travel, helping to eliminate the possibility of operators forgetting to adjust the setting when the direction of travel is changed. This not only uses less engine power but also results in reduced material distortion and improved mat smoothness.

The compactors feature two independent water systems, each with its own primary and back-up spray facility. The pressurized water system provides consistent water flow to the drum surfaces, eliminating asphalt build-up that would require subsequent time-consuming and costly rework. As the water flow is adjustable, water can be conserved, thereby reducing the time taken on water refills.

Safe and comfortable for longer working time

The safety and effectiveness of the operator are top priorities in each of these compactors. The operator area provides an unobstructed, all-around view, reducing operator neck strain and improving safety for personnel on the ground. The vibration-isolated operator platform and ergonomic layout of controls also contribute to a low-fatigue work environment. The operator sits in an ROPS/FOPS protected structure, and the console can be rotated 180 degrees, allowing both good comfort and sight line visibility when working. Because of a console-mounted impact spacing meter, operators can also adjust travel speeds to maintain proper asphalt smoothness.

Industry leading access for maintenance and service

The engine and hydraulic components are easily accessible, thanks to a swing-up engine hood. Daily checks on engine, battery, radiator, filters, etc. can be reached from ground level, helping to ensure that maintenance is properly conducted. Lockable covers protect the operator console, while lockable engine hood, fuel cap, water fill cap and deck access doors help deter theft and vandalism.

As with all Volvo products, the DD110B, DD120B and DD140B are backed up with a supportive and knowledgeable dealer network. Supplying genuine parts, highly trained experts can provide a range of solutions to keep Volvo customers’ machines productively working longer.

* The DD110B, DD120B and DD140B are available in the North American markets.