The BOMAG BW 138 AD-5 tandem vibratory roller features a large drum diameter and high compaction forces. Its 54.3-inch rolling width makes short work of granular soil and asphalt compaction to tackle projects ranging from parking lot paving to county road repair to compaction of urban street developments.
When equipped with the intuitive Economizer compaction measurement system, the BW 138 AD-5 alerts operators to compaction progress of the soil or asphalt material, reducing passes.
A 35.4-inch drum diameter delivers more drum impact area with the surface to reduce rolling resistance, deliver smoother surface finish, and improve asphalt mat quality. Dual vibration frequencies of 3,000 and 3,360 vpm offer rolling speeds reaching 3.8 mph while maintaining proper impact spacing on asphalt projects. With its 0.020-inch amplitude and average linear load of 86.6 lbs. per inch, the BW 138 AD-5 deeply penetrates asphalt and granular soil base materials. Front-only, rear-only, or front-and-rear vibration mode operation allows the operator to adjust machine compaction output to jobsite conditions.
The BW 138 AD-5 features maintenance free bearings, which eliminates the need to grease hinge points on a daily or weekly basis to reduce service time and improve machine longevity. The roller’s maintenance free articulation joint boasts bolt-on construction for fast removal and 2-inch crab steering for easy compaction against obstructions. Sturdy braided cable bundles improve reliability of the roller’s electrical system.
The roller is powered by a 45.1-hp water-cooled diesel engine meeting Tier 4 Final emission standards. Its ROPS canopy quickly folds down without using tools, facilitating transport.