【IGBT MODULE】- Gold melting furnace is equipped with an IGBT module, which can work continuously for 24 hours. It has overheating and water shortage protection functions to ensure safe and uninterrupted operation. Please use it in water circulation to avoid burning the machine 【5000W EFFICIENT MELTING】- Power 5000W, voltage 220V, maximum heating temperature 1600℃/2900°F, gold only takes 3-5 minutes, metals such as stainless steel or copper only take 6 minutes, and other metals only take 5 minutes to melt, and can work continuously 【PURE GRAPHITE CRUCIBLE】- Pure graphite crucible ensures the best melting conditions for metals with its excellent thermal conductivity. The crucible slot design makes it easier to pour molten metal and clamping crucible, thereby reducing the overall melting time. This gold melting furnace set comes with a graphite crucible, water pump kit, melting tongs and thermal insulation gloves 【WATER CIRCULATION COOLING】- Our metal smelting kit is equipped with an advanced water circulation cooling device. Only 1L of water per minute is needed to effectively cool the machine. Smelting can be completed in 3-5 minutes and it can work continuously for 24 hours, solving the problem of long-term use. It is applicable to a wider range of environments and efficiency 【APPLICATION RANGE】- This melting oven is adequate for gold, pure silver, pure copper, aluminum and other precious metals with fusion points below 1600 ℃/2900 ° F. The foundry oven is not only adequate for professional use in the industry and workshops, but it can also be used at home. Notice: Before using the oven, it is necessary to preheat it to prolong its useful life