This patent certification covers a core innovation of GWDLTHERMO in the field of high-end material heat treatment – a vacuum atmosphere rotary kiln specifically designed for processing high-purity, high-value-added materials. This patented equipment integrates high-vacuum sealing technology, precise atmosphere control system, and uniform dynamic rotation design, successfully solving the technical bottleneck of pollution-free and uniform heat treatment for sensitive materials (such as battery cathode and anode materials, ceramic powders, advanced ceramics, etc.) in high-temperature environments. It ensures that materials achieve uniform reaction and sintering in an environment with extremely low oxygen content and no pollution, serving as a key technical equipment to improve product consistency, purity, and performance, and marking our leading position in special heat treatment technology.