PLATE COMPACTER-In construction projects that require a stable subsurface, plate compactors are used to compact some types of soil and gravel. They are also known as plate tampers.
A plate compactor is available in a variety of shapes, sizes, and accessories, but the main features remain the same. The core of the machine is a heavy, flat plate that rests on the ground when it is not in use. A gasoline or diesel engine drives or vibrates the plate.