|This R9D-100 digitally controlled, electrical metal melting kiln is especially designed to melt down up to 3000 Grams of PURE GOLD or any other metal with a CASTING point below 1100° such GOLD, SILVER, copper, brass, bronze, and their alloys. The R9D-100 kiln has a standard digital temperature controller and can reach and hold any single temperature between 20°C and 1120°C once settled. It means that when this kiln is connected to a power supply and is switched on, it will start to heat up gradually without stopping until a pre-settled temperature will be reached. The kiln is able to hold the required temperature until you will pre-set a different temperature or switch it off. The empty kiln reaches the temperature of 1130°C approximately in 60-90 minutes depending of the quantity and size of your metal pieces inside the graphite crucible. More metal (larger pieces) and more metal in the crucible means more heating time.