Equipment

BW138AC-5 Combination Roller

BOMAG

November 19, 2013 - Equipment

<p><em>Photo courtesy of BOMAG</em></p>

The 4.5-ton, 54-in. wide BW138AC-5 roller features a traditional vibratory steel drum in the front and four pneumatic tires at the rear. This “combination” delivers added material manipulation for asphalt compaction and enhanced tractive effort for steep grade applications, according to BOMAG.

Powered by a Tier 4i 4-cylinder Kubota diesel engine, this roller is suited for compaction of commercial parking lots, driveways, highway shoulder construction, and secondary roadway maintenance.  Rolling resistance on asphalt materials has been minimized due to the large 35.4-inch drum diameter.

Smooth rear pneumatic tires manipulate the compacted material and ensure that the liquid asphalt is even throughout the lift. This helps to deliver a finer top finish on the material. The tires also aid traction due to their gripping characteristics and enable better performance on hilly applications and when loading and unloading from steel deck trailers.

The BW138AC-5 is equipped with a pressure water sprinkler system that includes a high-capacity 76-gallon water tank for extended operation between refills. Filtered spray nozzles and an interval sprinkler timer contribute to water savings, while solid windscreens ensure that the drum receives sufficient coverage even in windy conditions. Flexible, spring-actuated scrapers further contribute to optimum water distribution. A separate 13-gallon tank holds emulsion liquids for wetting the rear tires.

The optional BOMAG ECONOMIZER system enables continuous control of the compaction process by automatically offering real-time compaction level data to the operator. 

Tags: BOMAG, Roller

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