New Volvo DD25B double drum compactor delivers
The new DD25B double-drum compactor from Volvo Construction Equipment, powered by a Tier 4 Final/Stage IV-compliant engine, achieves outstanding results with maximum machine uptime
Volvo Construction Equipment’s DD25B double-drum compactor is powered by a durable and fuel-efficient three-cylinder engine that meets strict Tier 4 Final/Stage IV emissions regulations without the cost and complexity of an after-treatment system. The 25hp Volvo D1.7A engine is perfectly matched to the compactor’s hydraulic system and delivers high performance with a 7% reduction in fuel consumption.
The DD25B offers high-frequency compaction, a choice of 3,300 or 4,000 vpm depending on application, with increased productivity, by allowing the operator to travel at higher speeds while still maintaining optimum impact spacing. Safety and precision are enhanced by the angled drum mounts, sloping hood design and optimally positioned sliding seat, which provide the operator with a 360 degree view of the drum edges and surroundings when the compactor is rolling forwards and in reverse. The machined drums with chamfered edges are perfectly cylindrical, producing a smooth mark-free mat while the advanced eccentric system ensures a powerful performance, equivalent to machines fitted with a significantly larger engine.
The advanced design of the DD25B’s pressurized water system facilitates smooth, even compaction with maximum machine uptime. The reliable, rust-proof system delivers a consistent flow of water to the front and rear drum surfaces of the compactor to eliminate asphalt pick-up, thereby ensuring a high-quality finish and protecting the machine from damage. The fine filters behind each of the eight spray nozzles prevent clogging and ensure correct fan spray coverage. The water tank capacity minimizes downtime due to refilling while a gauge, easily visible from the seat, allows the operator to accurately monitor the water tank level and effectively plan service breaks. The operator also has the option to adjust the interval between sprays to conserve water when required and reduce filling downtime. When servicing the compactor, the water nozzles can be quickly and easily removed without the need for any tools to get the machine back on the job as quickly as possible.
Volvo say that the DD25B is one of the most robust compactors on the market with minimal maintenance requirements. The front and rear drum wipers are made of durable urethane, to increase effectiveness and service life while the eccentric bearings, built to tolerate high temperatures and rotation speeds, are lubricated for life. Auto-start vibration engages automatically when the FSR lever is moved out of neutral and disengages when the lever is in stop position to eliminate accidental damage to the mat.
Daily inspections are easy to carry out thanks to the lightweight hood that tilts forward with the aid of two gas struts. This provides wide access to the engine and hydraulic components of the compactor at ground level. Dealer support is provided as standard, offering a ready supply of expert advice and genuine Volvo parts.
