set2: 1pcs Induction Heating Board with Fan & 1pcs Corundum Crucible High purity, Al2O3 more than 99%. Good temperature resistant, good chemical resistance. Thermal resistance and cold resistance, and not easy to burst Casting formation, high density Working Temperature:1600 Degrees Celsius(Normal)1800 Degrees Celsius(Short time) working voltage :DC 24-36V working current:20A. Power tube:Original IRFP260N (50 a 200 v) Size:100*100*85mm Spiral copper pipe size:Inside diameter 40 mm, high 45mm Inner Diameter: Approx 32mm Outer Diameter: Approx 38mm Base Diameter:Approx 25mm Height: Approx 45mm Capacity: 30ml Color: ivory white/red Material:CCL+METAL/Aluminium oxide 100% 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 Degrees Celsius] Found melting copper, gold, silver, power requirements: 36V 700W - 900W power supply (20A to 25A), respectively [melting point: 1083 Degrees Celsius, 1065 Degrees Celsius, 962 Degrees Celsius Uses: DIY small parts made of steel hardening, annealing below the melting point of 1100 Degrees Celsius metal smelting, DIY small cooker and so on notice :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 whirlpool 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 Package Contents: 1pcs Induction Heating Board with Fan 1pcs Spiral copper pipe 1pcs 2m Water pipe 1pcs Corundum Crucible Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.