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Shandong Junxu Heavy Industry (Group) Co., Ltd.
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Shandong Junxu Heavy Industry (Group) Co., Ltd.: is a group oriented development company with three branches. It is a comprehensive, efficient, and intelligent technology enterprise specializing in the research and development, design, production, marketing, and after-sales service of large-scale dryer sets, desulfurization equipment, biogas engineering, and drying equipment. The production and manufacturing base is located in Weifang, the world kite capital, and is an advanced manufacturing ...
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Million+
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Million+
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Advanced automatic machines, strictly process control system. We can manufacture all the Electrical terminals beyond your demand.
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quality Wood Drying Machine & High Frequency Vacuum Dryer manufacturer

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High Wood Waste? Our Equipment Raises Utilization to 97%
Wood Modification Equipment: Redefine Wood Performance, Unlock Diverse Scenarios​ Wood modification equipment is a revolutionary technical device in the modern wood processing industry. It reconstructs wood structure at the molecular level through precise control of physical and chemical composite processes, enabling ordinary wood to achieve a leapfrog upgrade in performance. Its core working principle covers two major technical paths: physical modification, represented by high-temperature thermal treatment, which gradually heats wood from room temperature to 160-240℃ (precisely set according to different wood species such as poplar and pine) in a closed cavity protected by nitrogen or inert gas. Through 8-12 hours of constant temperature treatment, the hemicellulose inside the wood undergoes moderate degradation, the lignin molecular chains are rearranged, and the number of hydrophilic groups is permanently reduced. This process is like giving wood a "high-temperature exercise", keeping its moisture content in the golden range of 8%-12%, so that it can maintain morphological stability even in environments with drastic humidity changes.​ Chemical modification focuses on acetylation technology, placing wood in acetic anhydride solution and completing 3-6 hours of acetylation reaction in a reactor at 80-120℃. During the reaction, hydroxyl groups (-OH) in wood cells are replaced by acetyl groups, like covering the wood surface with a "waterproof film", fundamentally blocking the moisture absorption channel. At the same time, some equipment is also equipped with a resin impregnation system, which injects environmentally friendly resin into wood conduits through a vacuum-pressure process. The "skeleton support" structure formed after curing can increase wood hardness by more than 40%.​ It is worth mentioning that advanced wood modification equipment is equipped with a PLC intelligent control system, which cooperates with a multi-sensor array to monitor key parameters such as temperature (accuracy ±1℃), pressure (±0.01MPa), and humidity (±2%RH) in real time, and automatically adjusts the process curve. This means that the performance deviation of each cubic meter of modified wood can be controlled within 5%, completely solving the industry pain point of "different quality in the same batch" in traditional processing.​ In practical applications, these advantages are transformed into tangible scenario value: in the field of outdoor landscapes, plank roads and pavilions made of high-temperature modified wood can resist rain 浸泡 and ultraviolet aging, with their service life extended from 5-8 years of traditional wood to 15-20 years, and annual maintenance costs reduced by more than 40%; in bathroom decoration, wall panels and cabinets made of acetylated modified wood will not mold or deform even in a humid environment for a long time; in the high-end furniture manufacturing industry, due to excellent stability, the loss rate of modified wood during cutting and sanding is reduced from 10% to 3%, and the paint adhesion is increased by 20%, easily achieving diversified surface effects such as matte and high gloss.​ More importantly, this technology conforms to the global green development trend. Physical modification has no chemical additives throughout the process, the reagents used in chemical modification can be recycled, and the modified wood can still be recycled and degraded after its service life. For wood processing enterprises, one equipment can convert low-value fast-growing wood into high-end materials comparable to precious hardwood, reducing raw material costs by 30% while increasing product premium space by more than 50%. From outdoor fences of rural B&Bs to solid wood floors of five-star hotels, from children's furniture to large-scale landscape projects, wood modification equipment is using technological strength to make wood bloom lasting value in more scenarios.​  
High frequency vacuum dryer
Key Features of High-Frequency Vacuum Dryers: High-Frequency Heating: High-frequency vacuum dryers employ electromagnetic waves with frequencies typically ranging from 13.56 to 100 MHz. These waves penetrate the wood material, causing the water molecules to vibrate and generate heat. This high-frequency heating process accelerates the drying time significantly. Vacuum Environment: A high-frequency vacuum dryer creates a low-pressure environment within the drying chamber. By reducing the air pressure, the boiling point of water decreases, enabling the moisture to evaporate at lower temperatures. The vacuum environment enhances the drying efficiency and prevents the wood from overheating or drying too quickly. Radio Frequency Generator: The heart of a high-frequency vacuum dryer is the radio frequency (RF) generator. This device generates the high-frequency electromagnetic waves required for the drying process. The RF generator is capable of adjusting the frequency and power output to suit different wood species and moisture content levels. Drying Chamber: High-frequency vacuum dryers feature a drying chamber where the wood material is placed for drying. The chamber is designed to withstand the vacuum environment and is typically constructed using materials that are resistant to electromagnetic interference. It may also have insulation to minimize heat loss and improve energy efficiency. Temperature and Moisture Control: Advanced high-frequency vacuum dryers have temperature and moisture control systems. These systems monitor and regulate the drying conditions inside the chamber, ensuring optimal drying parameters. Temperature and moisture sensors, along with automated controls, allow for precise adjustments to achieve the desired moisture content in the wood. Safety Features: High-frequency vacuum dryers incorporate safety features to protect both the equipment and the operators. These may include emergency shut-off systems, temperature sensors, pressure relief valves, and alarms. Safety measures are in place to prevent overloading, overheating, or other potential hazards during operation.
What are the advantages of Tenglong Heavy Industry's wood drying hot air furnace?
Hot air furnaces for wood drying offer the following advantages: High efficiency and energy saving - High fuel utilization: Utilizing advanced combustion and heat exchange technologies, fuel is fully burned, resulting in high thermal efficiency and reduced energy waste. - Waste heat recovery: Equipped with a heat recovery device, heat energy is recovered during the drying process, further improving heat utilization and reducing fuel consumption. Excellent drying results - Stable temperature: Precise hot air temperature control with minimal fluctuation ensures uniform heating of the wood, improving drying quality. - Uniform drying: A forced circulation system distributes the hot air evenly within the drying chamber, preventing overheating or uneven drying of the wood. Wide applicability - Diverse fuels: Wood processing waste such as sawdust, bark, and shavings, as well as coal, can be used as fuel, reducing operating costs. - High adaptability: Suitable for wood of varying species, board thickness, and moisture content, allowing for flexible use of various drying processes. Easy operation - High degree of automation: Features such as automatic feeding and automatic adjustment reduce manual intervention and labor intensity. - Easy Maintenance: The rational structural design facilitates inspection and maintenance, extending the equipment's service life. Environmentally Friendly - Low Emissions: Utilizing environmentally friendly technologies, emissions of harmful gases such as smoke and sulfur dioxide are low, meeting environmental standards. - Resource Recycling: Utilizing wood processing waste as fuel, this achieves resource recycling and reduces environmental pollution. Multi-Purpose Machine - Versatility: In addition to wood drying, it can also be used for workshop heating or drying other materials, improving equipment utilization. In summary, the wood drying hot air furnace, with its high efficiency and energy saving, excellent drying results, wide applicability, ease of operation, environmental friendliness, and versatility, is an ideal drying equipment for wood processing companies.

2025

09/07

Wood Warping & Rotting? Our Modification Equipment Stops It for Good
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.​  

2025

08/22

Wood Drying Machine
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.

2024

03/13