
Sapphire Annealing Furnace
This lifting furnace adopts an electric lifting structure, and the furnace material is all vacuum-formed high-purity alumina polylight material. It has high use temperature, small heat storage capacity, resistance to rapid heating and cooling, no cracks, no slag, and good thermal insulation performance. Electric hydraulic lifting system, furnace bottom door. It is widely used in production and experiments in the fields of ceramics, metallurgy, sapphire annealing, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, building materials, etc.
Furnace size (mm) | Working temperature(℃) | Power(KW) | Voltage | Heating elements | Heating rate |
400*400*400 | 1650℃ | 20 | 380V | 1800 Silicon Molybdenum Rod | 1-15℃/MIN |
500*500*500 | 35 | ||||
800*500*500 | 60 | ||||
1200*500*600 | 90 | ||||
1500*500*600 | 110 | ||||
2300*500*600 | 155 | ||||
400*400*400 | 1750℃ | 35 | 1900 Silicon Molybdenum Rod | ||
600*300*300 | 45 | ||||
800*400*400 | 70 |


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A vacuum furnace is a high-tech industrial oven used for heat treatment processes, primarily in the manufacturing and processing of metals, ceramics, and other materials. The furnace operates in a controlled vacuum environment, meaning that the air is removed from the chamber, creating a low-pressure atmosphere. This unique condition allows for specific and often superior material properties to be achieved during the heating process. Let’s dive deeper into the purpose of a vacuum furnace and why...