Answering the Challenge of Asphalt Compaction Across Diverse Construction Terrains

In the world of modern construction, the quality of the asphalt layer is the foundation of reliable and durable infrastructure. Modern roads are now required to withstand heavy traffic loads and extreme weather conditions. This demand has transformed asphalt compaction from a mere technical step into a critical art that determines a project’s success, safety, and profitability. Failure to achieve optimal density can lead to premature failures such as cracking, rutting, or potholes, resulting in costly repairs and damage to a contractor’s reputation.

This challenge becomes increasingly complex on the job site. Every project has unique characteristics, from the type of asphalt mix and layer thickness to environmental conditions. To address this, compaction equipment or rollers must be not only powerful but also intelligent and precise. Among the various types of compaction machines, the Tandem Vibratory Roller has emerged as a specialized category designed to produce an evenly dense and smooth surface, making it the top choice for large-scale projects.

In response to this need, United Tractors proudly presents the Bomag BW 161 AD-4, a heavy tandem roller engineered as the definitive solution to overcome every asphalt compaction challenge on any terrain. This is not just heavy equipment; it is a strategic asset for your project’s success.

The Bomag BW 161 AD-4: A Fusion of Power, Precision, and Productivity

The Bomag BW 161 AD-4 is designed with a singular goal: to deliver the highest productivity and compaction quality in its class. Every specification on this unit is the result of precision engineering designed to provide a tangible advantage on-site.

• Operating Weight: With an operating weight of 10,050 kg, the BW 161 AD-4 firmly falls within the heavy tandem roller category. This weight provides significant static pressure, which is essential for effectively compacting thick asphalt lifts (binder courses) and foundation layers. This static force ensures that density is achieved deep into the material, creating a robust road structure from the ground up.
• Working Width: The BW 161 AD-4’s working width of 1.68 meters enables it to cover large areas with fewer passes. In project calculations, this translates into direct savings in three crucial areas: project time, fuel consumption, and operator hours. The ability to complete work faster directly increases project profitability.
• Intelligent Dual Vibration System: This is the core of Bomag’s technological superiority. The BW 161 AD-4 is equipped with a dual vibration system on both drums, featuring high and low settings for both amplitude and frequency. This flexibility allows the operator to tailor the compaction force to the specific needs of each asphalt layer.
  • High Amplitude: Used for initial breakdown passes on thick lifts, delivering powerful, deep compaction energy.
  • High Frequency & Low Amplitude: Perfect for finishing passes on the wearing course. This rapid, gentle vibration creates an exceptionally dense, smooth, and perfectly sealed surface without fracturing the aggregate.

This combination of power, reach, and intelligent vibration control makes the BW 161 AD-4 not only suitable for all asphalt layers but also highly reliable for light soil compaction work, such as on Base Course and Sub Base layers. This versatility makes it a multi-role asset that maximizes its utilization rate and delivers a higher return on investment.

Innovations Driving Efficiency and Safety

The superiority of the Bomag BW 161 AD-4 lies not only in its core specifications but also in a series of innovative features designed to empower the operator, enhance precision, and ensure long-term durability.

The Command Center: Unparalleled Operator Visibility and Control

Bomag understands that the operator is the key to quality compaction results. Therefore, the BW 161 AD-4’s cabin is designed as an ergonomic and safe command center.

• Sliding Seat and Dual Steering: The unit is equipped with a laterally sliding operator’s seat and two steering wheels. This design allows the operator to always position themselves for the best possible view of the drum edge, whether moving forward or in reverse. This clear visibility is crucial for ensuring every inch of the surface is perfectly compacted and for avoiding errors.
• The Crab-Walk Advantage: The Central Articulated Joint feature on the BW 161 AD-4 allows both drums to be offset by up to 17 cm to the right or left. This capability, known as crab-walk, provides a massive advantage when working near curbs, barriers, or other obstacles. The operator can compact right up to the edge without risking the machine’s body hitting the obstacle, while also providing a better line of sight to the work area. This feature drastically reduces the need for time-consuming manual compaction in tight spots.

Achieving the Perfect Finish: Advanced Surface Management

To produce a flawless asphalt surface, controlling the interaction between the hot asphalt and the drum is critical.

• Pressurized Water Sprinkler System: Unlike ordinary gravity-fed systems, the BW 161 AD-4 uses a pressurized water sprinkler system on both drums. This system guarantees a consistent and even spray of water across the entire drum surface, preventing hot asphalt from sticking and creating pickups or tears in the newly laid mat. The water flow is also adjustable by the operator, making water usage more efficient.
• Optional Side Cutter: For an even cleaner finish, the drums can be equipped with an optional Side Cutter. This tool is used to cut excess asphalt along the edge of the road, creating a straight and tidy finish.

Engineered for the Long Haul: Durability and Ease of Maintenance

As a product of German engineering, the Bomag BW 161 AD-4 is built with high-quality components that ensure superior durability. However, the true strength of heavy equipment is also measured by its ease of maintenance. All service points and major components on this unit are designed to be easily accessible to mechanics. This shortens the time required for routine maintenance and repairs, which means less downtime and more productive time on the job, ultimately lowering the total cost of ownership.

Field Applications: Proof of Superior Performance in Strategic Projects

The combination of power, precision, and efficiency makes the Bomag BW 161 AD-4 the ideal choice for a wide range of the most demanding infrastructure projects.

• Toll Roads and Highways: On toll road projects where speed and durability are paramount, the BW 161 AD-4 Its ability to achieve target density in fewer passes significantly accelerates project timelines. The 10-ton weight and powerful vibration ensure the road can withstand heavy traffic loads for years to come.
• Airport Runways: This is the ultimate test for a compaction machine, where there is zero tolerance for surface imperfections. The precision of the BW 161 AD-4, supported by the crab-walk feature for working around runway lights and the water sprinkler system for a flawless finish, makes it a mainstay for airport projects. For projects with such stringent specifications, the unit can be equipped with optional technologies like the Bomag Economizer or Bomag Compaction Management (BCM). These systems provide real-time compaction data to ensure every square meter meets aviation safety standards.
• Urban Infrastructure and Foundation Layers: In dense urban environments, the agility of the BW 161 AD-4 is key. The crab-walk feature is invaluable for navigating around curbs, maintenance holes, and other obstacles. Furthermore, its proven reliability in compacting foundation layers (Base Course & Sub Base) demonstrates that its value begins at the earliest stages of road construction.

Make the Bomag BW 161 AD-4 and United Tractors Your Partner in Project Success

The Bomag BW 161 AD-4 is more than just a tandem roller. It is a comprehensive compaction system designed to deliver productivity, precision, and profitability. From its raw 10-ton power to the intelligent control of its vibration system and its operator-centric features, every aspect is engineered to help you not only meet project specifications but exceed them.

However, the excellence of a premium product must be backed by premium after-sales service. As the sole distributor of Bomag in Indonesia, United Tractors is committed to being your long-term partner in success. We provide a complete support ecosystem through

UT Guaranteed Product Support (UTGPS), which includes guaranteed spare parts delivery, reliable mechanics, and guaranteed repair times. This is our promise to keep your investment in prime condition and ready to work, minimizing downtime and maximizing profit.

Don’t let compaction challenges hinder your project’s success. Elevate your work quality and efficiency with a leading-edge solution. For product consultation and further information, contact our experts through our 24/7 contact center, UT Call, at 1500 072.