Smooth drum rollers, also known as vibratory rollers, feature a large steel drum in the front that applies compaction force to the surface. 

These rollers use vibration or oscillation mechanisms to enhance compaction and achieve uniform density, and are suitable for compacting granular materials such as gravel, sand, and crushed stone. 

Smooth drum rollers are often used in road construction, parking lots, and other large-scale projects.

Pneumatic rollers are rollers that are equipped with rubber tires instead of steel drums.

These rollers have multiple tires that can be adjusted individually to control compaction pressure. The rubber tires provide a kneading action that helps achieve a smooth and even surface finish. 

Pneumatic rollers are commonly used in road construction, airport runways, and areas where a combination of compaction and surface sealing is required, and are effective in compacting both granular materials and asphalt surfaces.

Sheep's foot rollers, also known as padfoot rollers, are characterised by their unique drum design. The drum is covered with rectangular or square-shaped protrusions, resembling sheep's feet. 

This design allows for increased compaction in cohesive or semi-cohesive soils – the protrusions penetrate the soil, providing deep compaction and reducing the risk of material sticking to the drum. 

Sheep's foot rollers are commonly used in projects involving clay, silt, or other cohesive soils, such as landfills, dam construction, and trench backfilling.

Tandem vibratory rollers consist of two vibrating steel drums, one in front of the other.

These rollers use their duel drums to vibrate and apply compaction forces to the surface, which makes them suitable for compacting a wide range of materials, granular and cohesive soils, and asphalt. 

Tandem vibratory rollers offer excellent maneuverability, making them ideal for smaller-scale projects, residential areas, and road repairs. Their compact size and ability to work in tight spaces make them highly efficient in achieving desired compaction levels.

Grid rollers, also referred to as towed vibrating rollers, have a grid-like pattern on the drum surface.

This drum design helps distribute compaction forces evenly. Grid rollers are usually towed by another vehicle, providing efficient compaction while reducing the risk of surface damage.

Grid rollers are commonly used in the compaction of coarse-grained soils and aggregates. They are particularly effective in achieving high-density compaction in materials used for railway ballast, road bases, and large open areas.