Stage temperature control, to adapt to the process requirements of different products, PID temperature control, with good furnace temperature uniformity and better curing quality. Hot air circulation, high thermal efficiency, the total power is small, saving more than 25% power than the traditional equipment. Special heat insulation structure, the surface temperature of the machine housing is close to the room temperature, reduce energy. Modular design, flexible configuration, can meet various process requirements, especially for the products require for long baking. It can be used with automatic production line to effectively control manpower, reduce handling, reduce defects, save time and save input cost.