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Bomag BW90AD-2 Rollers Deliver Good Vibrations

Wed February 16, 2000 - Northeast Edition
Construction Equipment Guide

The new Bomag BW90AD-2 tandem-drum, ride-on vibratory roller offers greater centrifugal force and higher vibrations per minute (vpm) than previous models.

With an operating weight of 1,520 kgs. (3,351 lbs.), the roller exerts 1,530 kgs. (3,372 lbs.) of centrifugal force per drum and offers a vibration frequency of 3,600 vpm.

Combining the productivity of a tandem-drum roller with the mobility of a walk-behind roller, the BW90AD-2 is ideal for road maintenance and patching, parking lots and driveways.

With a tightened steering angle of 31 degrees, sensitive speed control, unobstructed view to all sides and high compaction performance, the BW90AD-2 performs well on a wide range of materials including granular sub-bases and bituminous layers, making it ideal for small to medium sized jobs.

The BW90AD-2 has a 90-centimeter (35.4 in.) rolling width. The unit’s 58-centimeter (22.8 in.) diameter drums reduce pushing and cracking, giving the surface a higher-quality finish. A bolt-on center articulation joint allows the rear roller to travel in the same path as the front roller, even in turns. In addition, the joint provides full drum contact on irregular terrain with six-degree oscillation.

The high curb clearance and narrow lateral overhang of the BW90AD-2 allow the machine to avoid damage when working close to curbs. The roller’s rear drum vibration may be switched off for compaction of thin lifts. Vibration in both drums automatically ceases if working speeds are too high, preventing rippled pavement surfaces.

The new BW90AD-2 is powered by a 12-kW (15.9 hp) Kubota D722B water-cooled engine. The BW90AD-2’s propulsion system reduces drum slippage and increases traction and gradeability. If one drum drive slips, hydraulic oil flow continues to the other drum enabling the unit to climb a higher grade. The BW90AD-2 operates on a 40 percent grade without vibration and a 30 percent grade with vibration, allowing it to handle similar grades as machines with larger engines.

The BW90AD-2’s water-spray system is pressurized with an interval timer allowing the operator to match drum water flow to site conditions. Constructed of corrosion-resistant plastic, the roller’s 100-liter (26.4 gal.) water tank reduces downtime for refills and features a large drain for easy rinsing.

Equipped with integrated vibration control, the BW90AD-2’s travel lever provides sensitive operation of the roller. Ergonomically arranged controls ensure simple and easy operation. The unit’s operator platform has ample leg room for fatigue-free work.

The BW90AD-2 is equipped with an anti-vandalism instrument panel and corrosion-protected ignition switch. Maintenance-free, Spring-Applied, Hydraulically-Released (SAHR) brakes automatically activate when the engine is stopped and during standstill ensuring operator and job site safety. A fault-finding system provides simple, on-site trouble shooting for electrical problems, reducing downtime.

For more information contact 800/235-0008.

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