The Pioneer G1500D is designed specifically for construction, paving, and landscaping. No need to search for other systems in order to find what is best for your construction or landscaping needs. The G1500 handles beds up to 33'. This heavy duty, semi-automatic tarping system has incredibly strong steel arms powered by the strongest 4'' side-mount torsion springs available. It includes a gear reduction chain drive control box which allows you to have complete control over the system's movement. This system will make work on the site easier and more efficent.