This document describes an automatic trolley system for material handling in industries. It discusses how material handling equipment is used to move, store, and control materials throughout the manufacturing process. It then introduces an automatic trolley system that uses electric motors, a power transmission system, and sensors to carry and drop off materials autonomously on rough surfaces. The trolley system provides benefits like increased accuracy, reduced lead times, and eliminated manual labor compared to manual handling methods, though it has higher maintenance costs and risk of electronic failures.