The 54-inch BW138AC-5 roller has vibratory steel drum in front and four smooth pneumatic tires in the rear. The 4.5-ton roller has a Tier 4-Interim Kubota engine and a 35.4-inch drum diameter. A pressure water sprinkler system includes a 76-gallon water tank; filtered spray nozzles; and an interval sprinkler timer. A separate 13-gallon tank holds emulsion liquids for wetting the rear tires. A suspended and vibration-isolated operator’s platform includes a fully adjustable and laterally sliding seat. Multifunctional dual travel levers and the Smart Drive steering wheel that provides more working room and a full view of all machine controls.

The optional BOMAG ECONOMIZER system is a quality-control tool that automatically offers real time compaction level data to the operator.