The flat belt and inclined belt idler rollers in the concrete mixing plants manufactured by Zoomlion Heavy Industry and Sany Heavy Industry serve important functions in supporting and guiding the conveyor belts during material transportation.

The primary role of the idler rollers is to provide support and maintain the proper alignment of the conveyor belts. They are positioned along the length of the belts and act as support points, ensuring that the belts remain taut and properly tensioned. The idler rollers help to prevent sagging or excessive slack in the belts, which could impede the smooth movement of materials.

The idler rollers also assist in guiding the conveyor belts along the designated path. They are designed to have a smooth surface and low friction, allowing the belts to glide over them with minimal resistance. This guidance helps to ensure that the belts stay on track and prevent any lateral movement or misalignment.

The specific model "108 * 1150" corresponds to the dimensions or specifications of the idler rollers used in the concrete mixing plants. The numbers "108" and "1150" likely represent the roller diameter and belt width, respectively, denoted in millimeters. These dimensions ensure compatibility and proper fit with the conveyor system in the mixing plants.

By providing support and guidance to the conveyor belts, the idler rollers contribute to the efficient and reliable transportation of materials in the concrete mixing plants. They help to maintain belt tension, prevent sagging, ensure proper alignment, and minimize any potential disruptions or issues during material handling processes.