Ningbo Herrenk Machinery Co.,Ltd is specialized in producing plastic hopper dryer,plastic dehumidifying dryer ,Vacuum auto loaders , industrial chillers ,mold temperature controller, plastic crushers,mixer , and other auxiliary machines for series of plastic machinery .Central Conveying System is customized for each customer. Combined ROBOT, COLOR DOSE MIXER, the company designs environmental friendly, energy saving with high quality and efficient project to save production costs, improve the products quality