Hopper dryers(RDM series) are quick-drying equipments for non-hygroscopic plastics and rubber.The Hot Air Drying-Hopper can dry the humidified raw material caused by packing,transportation and reclaiming.The equipment is best to be directly installed on the plastics or rubber molding machine. This kind of drying machine is quick to install and it can save space.For all types of the equipments,the 24-hrs timer is availble to selection.