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A compactor roller is a heavy machine used to compact material or asphalt to create a level surface. There are two types: single roller models for uneven surfaces and dual roller models for creating smooth surfaces. The machine moves slowly and may need to make multiple passes.
A compactor roller, also known as a compactor roller, steam roller or asphalt roller, is a heavy piece of machinery used to compact fine particulate material or asphalt to create a level surface or to release material from empty pockets. There are two general types of compactor models: single roller models and dual roller models. A single roller model will feature a large steel drum and a set of rear wheels or tracks to propel the machine forward; a double roller model will feature two large steel rolling drums and no rubber wheels for propulsion.
The single drum roller is useful if the machine will be used to level uneven surfaces of soil or dirt. The rubber wheels or tracks will help the machine maintain traction and clear some obstacles, but the single steel drum will be quite heavy and may still be prevented from rolling over obstacles. The soil that the machine is intended to compact will generally need to be graded in advance using a full size grading machine. The compactor roller can then flatten the soil or particulate matter using the static force created by the weight and movement of the roller.
A twin drum roller will not have rubber wheels or tracks, which means that the two steel drums will be responsible for propelling the machine forward. These steel drums may not have outstanding traction on many surfaces, so this type of roller is often used on asphalt or other sticky materials. The two drums are useful for creating a smooth flat surface without tires or ruts of trail. The machine is not exceptionally maneuverable, especially if it is not an articulated machine that pivots in the center. An articulated machine will have a shorter turning circle and be more manoeuvrable, while fixed-body models will have a larger turning circle.
The drum or drums will be mounted on an axle supported by a heavy duty frame. The machine will generally move very slowly to ensure that all materials are compacted evenly and that all voids within the materials are eliminated. The machine may need to make several passes over the same material, depending on how much air or moisture is inside that material. An operator usually sits in a booth above the reel or reels for better viewing ability; the seat inside that cab can rotate so the operator can safely operate the machine in either direction without fully turning the vehicle.
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