Bomag's new BW206AD-5 tandem vibratory roller features a larger drum diameter than previously available on 84.1-inch drum models, a design change the company says will provide a smoother finish. "Due to the height of the drum, the fact that we have a taller drum than we've had in the past, means less rolling resistance," says Dave Dennison, Bomag's marketing services and product manager. "By hitting that mat with a bigger diameter, you're not pushing as much material because you're more on top of the material, and that is going to give a smoother mat." The design also boosts curb clearance by 66 percent to make the machine more flexible around obstructions. Vibration frequencies and amplitudes can be reached in two modes, with a low frequency end amplitude of 3,000 vpm and 0.031 inches for a 39,116-pound max compaction output. The machine's high frequency of 4,200 vpm provides more impacts per inch at high speeds than the company's previous model at this size.
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