Compactors are machines designed to reduce the size of waste materials by applying pressure. They are commonly used in various industries, including construction and waste management, to compress materials like soil, garbage, and recyclables. By compacting these materials, they occupy less space, making transportation and disposal more efficient. There are different types of compactors, such as static compactors and vibratory compactors. Static compactors use weight to compress materials, while vibratory compactors use vibrations to achieve a denser result. Both types help improve site conditions and manage waste effectively, contributing to better environmental practices.