Lumber heat-treated system is independently developed by Institute of Drying Technology of Nanjing Forestry University and Jiangsu XINAN Wooddrying Systems Co., Ltd on the basis of improvement of careful study on the existing wood high temperature heat-treated equipment aboard and combining with domestic technology. The equipment has rational and advanced parts, safe and reliable performance. The equipment could improve the function of wood defects, so finite and rare wood resource could be utilized effectively, fast growing plantation resource could be fully developed as solid wood products. XNH wood thermal modified system has two structures of all-aluminum assembled kiln and carbon steel and stainless steel composite cylinder for customers to choose.