Instant Drop T4/T6 Aluminum Heat Treatment Furnace Customize service is available in a full range of sizes. 5-30 seconds adjustable instant drop quenching system, stable and reliable hydraulic power designed. Low energy consumption Automatic loading system. Temperature, cooling and transmission systems are designed with over heated, over loaded alarms. Solid sturdy steel construction furnace shell. Excellent air circulation system. Best quality of firebrick, ceramic fiber and refractory materials. Environmentally friendly Design Kanthal heating element.