Electromagnetic heating system consists of two parts: the electromagnetic controller and heating coil. The original machine is temperature controlled power (heating output contactor (or solid state relay) output) controller via electromagnetic frequency alternating current rectifier, filter, reverse into 20-50KHZ high frequency high voltage by connecting the cable to the electromagnetic heating coil, high frequency alternating current through the insulation material effect on the barrel, so that the barrel itself fever. Further, the power may be input directly to the solenoid controller, direct the original temperature controller for controlling the solenoid controller. Electromagnetic heater is a principle of electromagnetic induction to convert electrical energy to thermal energy device. Electromagnetic controller 220V, 50 / 60Hz AC power into DC rectifier, DC and then converted into a frequency 20-50KHz frequency high-voltage, high-speed changes of frequency and high voltage current flows through the coil will produce rapid changes in alternating magnetic field, the magnetic field when the magnetic field lines through the conductive magnetic metal material will produce numerous small vortex in the metal body, the metal material itself own high-speed heating, heating the metal material so as to achieve something within the barrel. Features: 1, energy efficient thermal efficiency up to 98% under the same conditions than the resistive heating saving up to 75% shorter preheating time 6min. 2, reliable and more intelligent closed-loop control system and perfect protection system to ensure long-term safe and reliable operation of the device. 3, lower production costs partially heated structure with cables, heating cable itself does not produce heat, long service life. Avoiding the resistive heating needs regular maintenance and periodic replacement of heating coil, the latter almost no maintenance costs. 4, to improve the working environment less heated part of the heat dissipation, the surface can touch and improve the environmental conditions of the production site. 5, intelligent multi-zone control peacekeeping force in Sri Lanka electromagnetic heating energy uses LCD display real-time temperature and the set temperature range, built-in smart chip can control the heating rate and the output power can be flexibly adjusted according to actual plant health situation.