Zhangjiagang ThreeO Machinery Technology Co., Ltd. specializes in designing and manufacturing all kinds of coke oven vehicles (top loading, side loading and horizontal loading). Our products sell well at home and abroad. In 2000, our company began to develop vertical side-mounted pushing coke oven coal charging cars - also known as hydraulic tamping closed tamping loading coal cars, which won the national invention patent and several utility patents. The closed hydraulic tamping loading coal vehicle has the following advantages: 1) It does not need the coal tower. 2) Low noise, high efficiency and easy operation 3) Hydraulic mechanism has a closed frame structure; long life span (50 years) 4) Greatly improving efficiency 5) Low maintenance cost 6) Lowering production cost (to cancel the coal tower and a large number of coal transportation equipment)