Soil Compactors, Power Source : Diesel Engine

The HAMM 311 soil compactor is a widely used heavy construction machine designed for efficient soil compaction in road construction, infrastructure development, and earthwork projects. Manufactured by HAMM AG (part of the Wirtgen Group), the 311 series is known for its durability, high performance, and operator-friendly design. It is particularly suitable for compacting granular soils, mixed soils, and cohesive materials, making it a versatile choice on construction sites.

One of the key features of the HAMM 311 is its powerful engine and robust build. The machine is typically equipped with a turbocharged diesel engine delivering around 100–130 HP, ensuring strong performance even in demanding conditions. This power enables the compactor to generate high centrifugal force, which is essential for achieving deep and uniform soil compaction. With an operating weight of approximately 11,000 to 11,500 kg, the machine provides excellent ground pressure, improving compaction efficiency.

The compaction system of the HAMM 311 is designed for flexibility and performance. It features a vibratory smooth drum with adjustable amplitude and frequency settings, allowing operators to adapt the machine according to different soil types and project requirements. This dual amplitude and frequency capability ensures better compaction results across varying terrains. The machine can achieve significant compaction depth (up to around 500 mm), making it ideal for subgrade preparation and large-scale projects.

Another important aspect of the HAMM 311 is its advanced mobility and maneuverability. The machine uses a three-point articulated joint, which enhances stability and allows smooth operation even on uneven or sloped terrain. It also offers good gradeability (around 30%), enabling it to work efficiently on inclines. The hydrostatic drive system ensures smooth acceleration and precise control, while the compact turning radius makes it suitable for confined construction areas.

Operator comfort and safety are also prioritized in the design. The HAMM 311 comes with an ergonomic operator platform that provides excellent visibility of the working area. Controls are simple and intuitive, often supported by clear display panels that show machine status and fault indications. Features like ROPS/FOPS-certified cabins, vibration-isolated seats, and easy-to-reach controls help reduce operator fatigue and improve safety during long working hours.

Maintenance and serviceability are additional strengths of the HAMM 311. The engine hood can be opened widely, allowing easy access to key components for routine inspection and servicing. Centralized service points further simplify maintenance, reducing downtime and improving productivity on-site.

The HAMM 311 series is available in different variants such as smooth drum (D) and padfoot (P) versions. The smooth drum version is ideal for granular soils and asphalt layers, while the padfoot version is better suited for cohesive soils like clay. This versatility makes the machine suitable for a wide range of construction applications.

In conclusion, the HAMM 311 soil compactor is a reliable and efficient machine that combines power, flexibility, and operator comfort. Its strong compaction capabilities, advanced features, and ease of maintenance make it a preferred choice for contractors working on road construction, embankments, and large-scale infrastructure projects.