Heavy equipment manufacturers prefer plastics due to their wear, impact resistance, and high strength properties. In addition, since plastics are more resistant to corrosion and rust, they perform better than comparable metal materials in extreme operating environments. Plastic components are used in motors and parts that require frictionless movement, such as shafts and hydraulic sleeves. Plastics are able to handle difficult materials such as asphalt, sludge, salt, and coal, without corroding, breaking, or cracking. Plastic is also used in operator cabs and interiors for areas such as sustainable window glazing, which provides operator protection, more viewing area, and enhanced visibility.
Heavy equipment manufacturers use plastic components for products ranging from bearings, bushings, gears, and wear pads to truck bed liners, v-bottom, and dump truck trailers. Using plastic liners and equipment reduces downtime and cleanup, and increases the operating efficiency of the equipment. Track plates for tracked vehicles are often constructed of heavy-duty nylon for use in soft soils, and high strength transparent plastics are used in windows and roof plates.