Description: Induction heating is the process of heating an electrically conducting object, usually a metal, by electromagnetic induction, through heat generated in the object by eddy currents. An induction heater consists of an electronic oscillator that passes a high-frequency alternating current through the electromagnet. The rapidly alternating magnetic field penetrates the object, generating electric currents inside the conductor called eddy currents and generating heat. Features: Can make any metal objects quickly heated to the desired temperature, including its melting point. Heat can be generated directly in the metal, instead of by an external heat source via heat conduction. There need not be any external contact, which can be important where contamination is an issue. Could melt refractory metals which require very high temperatures. Comes with a fan and a transparent hose for the purpose of enhancing heat dissipation. Specifications : Working Voltage: DC 24-36V Working Current: More than 15A, less than 30A Power Tube: Original IRFP260N (50A 200V) Output Power: 350W--500W Board Size: 100 x 100 x 81mm / 3.93 x 3.93 x 3.19" Spiral Copper Pipe Inside Diameter: 40mm / 1.57" Found with a 36V power supply completely into the new 30 * 30 graphite crucible input current of 25A Found molten aluminum Power Requirements: 24V 350W - 500W power supply (15A to 20A) melting point: 660 ℃ Found melting copper, gold, silver, power requirements: 36V 700W - 900W power supply (20A to 25A), respectively, melting point: 1083 ℃, 1065 ℃, 962 ℃ Notice : This item don`t provide the power supply, buyer need to find a 24V to 36V DC power supply, (Not less than 350W. More than 15A without losing voltage). If power by storage battery, must add a ampere meter for supervision, and to see if the input current is in the normal range(under 20A). Use for DIY small parts made of steel hardening, annealing below the melting point of 1100 ℃ metal smelting, DIY small cooker and so on. Only direct heating a steel material ( the magnet can be adsorbed material). Gold, silver, copper, aluminum can not be directly heated, need to match the graphite crucible melting. Work brass heating will need to use a lot of water circulation cooling. Without water circulating cooling are possible, but will burn into a black vortex brass, it will not be much affected. Please notice the place of anode and cathode, incorrect way of installation would cause smell of burning. Connect the spiral copper pipe before power on, Otherwise it will cause electric shock. Input wire: must more than 1.5 square copper wire(if the line was too small, power tube will be burned down) If the power supply without protective measures, don`t put the iron rod into the Vortex tubes, Otherwise power tube will be burned down. Vortex tubes will give out heat, need to need cooling by circulation water, this item come with a transparent hose(2m length/ 4mm ID ), buyer need to buy a low voltage small pumping water pump; (without water cooling, only Vortex tubes will burn into black, it also does not hurt the system too much) Package Includes: 1 x Heating Machine 1 x Hose 1 x Heating Tube 1 x Bag of Mounting Screw Accessory Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .