The BOMAG BW 138 AC-5 is a high-efficiency combination tandem roller featuring a smooth vibrating steel drum at the front and four smooth pneumatic rubber tires at the rear. The front steel drum provides effective compaction and leveling, while the rear pneumatic tires yield a kneading action that seals the asphalt surface, prevents micro-cracking, and ensures an exceptionally smooth, water-impermeable finish. Designed with a maintenance-free articulated joint, pressure water sprinkler system, and excellent operator visibility, it excels in asphalt repair, cycle paths, parking lots, and wear-course compaction.