Central Tower Zinc Alloys Melting Holding Furnace Capacity: 1000 kg - 3400 kg. Customize service is available. Electric heating system design, safe and environmentally friendly. Automatic System Automatic loading system, save labour cost. Save Cost Low maintenance, low energy consumption, low oxidation loss. Furnace shell Solid sturdy steel furnace shell. Superior Materials Best quality of firebrick, ceramic fiber and refractory materials. Environmentally friendly Environmentally friendly design.