China Shandong Junxu Heavy Industry (Group) Co., Ltd. Company News

Wood modification equipment achieves performance leap by multi-dimensional precise control of physical, chemical or biological processes to deeply optimize wood molecular structure:​ Physical Modification (Thermal Treatment/High-pressure Densification)​ Thermal treatment: Gradually heat wood to 160-240℃ (adjusted by wood species) in a nitrogen or steam-protected closed environment, permanently reducing hydrophilic groups in wood by degrading part of hemicellulose and rearranging lignin molecular chains.​ High-pressure densification: Compress cell structure with 10-30MPa pressure after softening wood at high temperature, increasing wood density by 30%-60%.​ ✅ Core advantages: More environmentally friendly without chemical additives; treated wood has stable moisture content of 8%-12%, weather resistance increased by 2-3 times, and hardness increased by over 40%.​ Chemical Modification (Acetylation/Resin Impregnation)​ Acetylation: Place wood in acetic anhydride solution for 3-6 hours of acetylation reaction at 80-120℃, replacing hydroxyl groups (-OH) in wood cells with acetyl groups to cut off moisture adsorption paths.​ Resin impregnation: Inject environmentally friendly resin into wood conduits through vacuum-pressure process, forming "skeleton support" after curing to fill cell gaps.​ ✅ Core advantages: Dimensional stability over 90%, water absorption reduced by 60%-70%, and insect resistance and anti-corrosion life extended to over 20 years.​ Intelligent Integrated System​ Equipped with PLC control system and multi-sensor array, real-time monitoring of temperature (±1℃), pressure (±0.01MPa), humidity (±2%RH) and other parameters, automatically adjusting process curves to ensure performance deviation of each cubic meter of wood ≤5%.​ ✅ Core advantages: Production efficiency increased by 30%, energy consumption reduced by 20%, labor cost reduced by 40%, realizing large-scale stable production.​  

Key Features of Wood Drying Machines: Drying Chamber: Wood drying machines consist of a drying chamber or kiln where the wood is placed for drying. The chamber is designed to create a controlled environment to optimize the drying process. It may be constructed with insulated walls and airtight seals to prevent heat and moisture loss. Heating System: Wood drying machines utilize a heating system to raise the temperature inside the drying chamber. The heating system can be powered by various energy sources such as electricity, natural gas, or biomass. It provides the necessary heat energy to evaporate moisture from the wood. Air Circulation: Proper air circulation is crucial for effective wood drying. Wood drying machines are equipped with fans or blowers that circulate heated air throughout the drying chamber. This ensures even distribution of heat and moisture removal, facilitating uniform drying of the wood. Humidity Control: Wood drying machines have humidity control mechanisms to regulate the moisture levels inside the drying chamber. This can be achieved through the use of sensors, controllers, and humidifiers or dehumidifiers. Maintaining an optimal humidity level helps prevent over-drying or under-drying of the wood. Monitoring and Control Systems: Advanced wood drying machines are equipped with monitoring and control systems. These systems allow operators to monitor and adjust various parameters such as temperature, humidity, airflow, and drying time. They ensure precise control over the drying process and help optimize drying efficiency. Safety Features: Wood drying machines prioritize safety during operation. They may include safety interlocks, temperature sensors, and emergency shut-off systems to prevent overheating, fire hazards, or other potential risks. Safety features help protect both the equipment and the operators.