A Thermal Controller is a device that is used to control the temperature of a system or process. In the context of injection moulding, a thermal controller might be used to control the temperature of the mold, the temperature of the plastic resin, or both.A hopper plastic dryer is a device that is used to dry plastic resin pellets before they are used in the injection molding process. Plastic resin absorbs moisture from the air, and if the resin is not dry when it is melted in the injection molding machine, the moisture can cause defects in the final molded part. The hopper plastic dryer is typically a separate machine that is connected to the injection molding machine by a hopper, which is a container that holds the resin pellets. The dryer uses hot air or infrared radiation to evaporate the moisture from the resin pellets. The dried resin is then fed into the injection molding machine to be melted and injected into the mold.A hopper plastic dryer is a machine that is used to dry plastic resin before it is used in the injection molding process. Plastic resin can absorb moisture from the air, which can cause problems during the molding process such as defects in the finished parts and reduced machine productivity. A Hopper Plastic Dryer works by heating the plastic resin to a high temperature, which causes the moisture to evaporate and be removed from the resin. The dryer is typically used in conjunction with a hopper, which is a container that holds the plastic resin and feeds it into the injection molding machine.