... or hard control of ingredients .Compared with large Al melting furnace , it overcomes disadvantages of complicated structure , large investment and low ... , 12T , 15T , 20T , 25T, 35T, 50T . Energy Consumption :Furnace of 12 - 15T ≤45; Furnace of 20T above ≤40, ( figures indicated with continuouns ... as section Al , Al plates ang Al scraps . Large capacity aluminum melting furnace