October 24, 2013, Kewanee, Ill. — BOMAG continues its
product line expansion with the new 4.5 ton BW138AC-5 roller. This 54-inch-wide
model features a traditional vibratory steel drum in the front and four smooth
pneumatic tires at the rear.
October 24, 2013, Kewanee, Ill. — BOMAG continues its
product line expansion with the new 4.5 ton BW138AC-5 roller. This 54-inch-wide
model features a traditional vibratory steel drum in the front and four smooth
pneumatic tires at the rear. This combination delivers added material
manipulation for asphalt compaction and enhanced tractive effort for steep
grade applications.
Powered by a Tier 4i 4-cylinder Kubota diesel engine, this
roller is ideally 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
delivers 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 un-loading 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.
A suspended and vibration-isolated operator’s platform
includes a fully adjustable and laterally sliding seat for added comfort, while
allowing clear visibility of the drums. Operator efficiency is enhanced with
multifunctional dual travel levers and the Smart Drive steering wheel that
provides more working room and a full view of all machine controls.
Standard safety features on the BW138AC-5 include a foldable
ROPS with seat belt, back-up alarm, emergency stop button, and front and rear
working lights for night operation. The roller’s engine hood and instrument
panel are also lockable to protect against vandalism. Requiring no daily grease
points, the needed on-site maintenance time is substantially reduced.
The optional BOMAG ECONOMIZER system enables continuous control
of the compaction process. This easy-to-use quality control tool automatically
offers real time compaction level data to the operator. Compaction levels are
indicated by an increasing number of illuminated yellow LEDs on the instrument
panel display. Maximum compaction is achieved when the number of LEDs does not
increase with repeated passes. The operator quickly knows that no more passes
are needed – thus saving the contractor time and money. If the number of yellow
LEDs suddenly drops, this indicates weak spots in the material. These weak
areas can now be further analyzed and remedied immediately. A red LED warns of
over-compaction and helps prevent fracturing of the aggregate. This ECONOMIZER
technology delivers a quality, smooth and consistent compaction result across
the entire rolled area. Additional optional features that are available include
directional indicator and hazard lights and a rotary beacon.
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