Laboratory Muffle Furnace 1100°C 1500°C 1800°C, Customized . To meet unique needs of every application, our muffle furnaces or box furnaces are available in temperature range from 800°C to 1400°C (800°C, 1100°C, 1200°C and 1400°C), in addition, we also design and manufacture high temperature muffle furnace up to 1800°C (1500°C, 1600°C, 1700°C, and 1800°C) Usability amp; Performance: