Features: Special furnace design with heat shield and holding layers for walls. Heat shield: Heat shielding material is used as lining to reflect electric heat to the crucible directly, so that it can absorb heat immediately without any loss and speed the heating process. Temperature holding: Thermal isolation material is used as outer lining to ensure optimal temperature holding effect of the furnace for aluminum and power conservation. Control Advantages: A microcomputer is used for temperature control. The controller is capable of executing automatic PID parameter calculation to ensure that the aluminum is in a constant temperature state and the temperature and quality meet the given requirements. An SCR phase electric heat controller (electric heat regulator) is used for power control. This controller is controlled by automatic PID parameter calculation and regulates the current by needs. When the aluminum temperature reaches the given value, the SCR will regulate output current. It is a good power saving device. The timing control is ensured with a 24H Time Setting mechanism. The ON/OFF timing can be pre-set to advance the starting of the furnace and save manpower. An immersion temperature probe imported from Japan is used to detect aluminum temperature. The temperature probe has a protection tube made of New Ceramics. New Ceramics features high sensing speed with low inaccuracy and is the only material suitable for immersion temperature probes. The furnace has a liquid leaking & power disconnection alarm device. The furnace has a strip heater disconnection check device. Power: 3? 220V, 380V or 415V.