Development Trends of Various Food Dryers in China

Drying is a crucial process for improving food preservation and extending shelf life. The efficiency and performance of drying equipment directly influence the quality and value of dried products. In recent years, China has made significant progress in developing advanced, multi-functional, energy-efficient, and adaptable drying technologies tailored for various industries. Zhejiang Huafeng Refrigeration Equipment Factory offers a series of steam-based vegetable dryers designed specifically for exporting dehydrated vegetables. These machines use high-temperature steam to heat air, reaching temperatures over 120°C. They are suitable for drying a wide range of vegetables like cabbage, spinach, garlic, onions, green bean sprouts, pumpkin slices, radish slices, and potato chips. The system allows precise temperature control, and features an energy-efficient, low-noise fan, as well as automatic condensate drainage. The material tank is made from high-quality stainless steel, ensuring compliance with food safety standards. Changzhou No. 2 Drying Equipment Factory has introduced the third-generation DWT series dehydrator, ideal for large-scale processing of root vegetables, leafy greens, and other materials such as dried garlic, pumpkins, carrots, and apples. This equipment has been widely adopted by numerous companies across Zhejiang, Shandong, and Fujian, proving its effectiveness and reliability. The Heilongjiang Academy of Agricultural Machinery and Engineering Research Institute developed a hot-air dehydration system suitable for vegetables, wild plants, edible fungi, and tea. It uses conveyor belts to transport pre-treated materials into the dryer, where moisture is reduced significantly during the high-temperature drying stage and further refined in the low-temperature zone, achieving optimal dehydration levels. Changzhou Yangtze River Drying Equipment Co., Ltd. has developed a superheated solvent vapor fluidized bed dryer that integrates drying and solvent recovery. This closed-loop system uses superheated steam as a heating medium, making it highly efficient for drying heat-sensitive materials and recovering solvents. It is widely used in food, pharmaceuticals, and chemical industries due to its high efficiency and environmental benefits. Nanjing Yatai Institute of Microwave Energy developed microwave vacuum freeze-drying equipment for vegetables, royal jelly, and ginseng. This technology offers fast, even heating without damaging nutrients, making it ideal for heat-sensitive materials. The low-temperature process preserves the original color, flavor, and nutritional content of the product. Shenyang Aerospace Xinyang Frozen Equipment Manufacturing Co., Ltd. produces the LG-125 vacuum freeze-drying equipment, which enables direct sublimation under vacuum conditions, preserving the structure and taste of food. This method ensures excellent rehydration and eliminates the need for preservatives, making the final product highly marketable. Changzhou Huayuan Drying Equipment Co., Ltd. offers the CT series drum dryer, an internal heating conduction type that achieves up to 80%-90% thermal efficiency. It is suitable for drying liquids, pastes, and viscous materials such as meat, dairy, and starch. Jiangsu One-Step Drying Equipment Co., Ltd. has developed several advanced drying systems, including the HG roller scraper dryer, HLG high-speed mixing granulator dryer, and DLB60 multi-functional coating dryer. These systems offer improved efficiency, uniformity, and compliance with GMP standards, making them ideal for food and pharmaceutical applications. Sichuan Agricultural Machinery Research and Design Institute developed a mobile grain dryer using crop straw gas as a heat source, reducing drying costs and solving issues related to grain spoilage in production areas. Finally, the Nanjing Institute of Agricultural Mechanization introduced a microwave drying machine for tea, replacing traditional methods with faster, more uniform heating. This improves tea quality, enhances flavor, and increases the concentration of beneficial compounds like polyphenols and vitamins.

CNC For Wooden Door Lock Slot Machine

• Computer Numerical Control (CNC) with Manual Programming: This type of machine requires the operator to input commands and parameters manually through a programming interface. It is suitable for experienced operators who are familiar with CNC programming and can handle complex tasks. However, it may be time-consuming and require a certain level of technical expertise.
• CNC with CAD/CAM Integration: These machines are integrated with computer-aided design (CAD) and computer-aided manufacturing (CAM) software. The operator can design the lock slot pattern using CAD software and then generate the CNC program automatically using CAM software. This simplifies the programming process and reduces errors, making it more accessible for less experienced users.

• Small-Scale CNC Machines: These are compact machines that are suitable for small workshops or for processing smaller wooden doors. They typically have a limited work area and may not be able to handle large-scale production. However, they are often more affordable and easier to operate.
• Medium-Scale CNC Machines: These machines offer a larger work area and higher processing capacity than small-scale machines. They are suitable for medium-sized workshops or for processing a moderate volume of wooden doors. They may have additional features such as automatic tool changers and multiple spindles to increase productivity.
• Large-Scale CNC Machines: These are industrial-grade machines that are designed for high-volume production. They have a large work area and can handle large wooden doors with ease. They are equipped with advanced features such as high-speed spindles, powerful motors, and sophisticated control systems to ensure high precision and efficiency.

• Single-Function CNC Machines: These machines are designed to perform a specific task, such as cutting lock slots. They are simple in design and easy to operate, but they may not be able to handle other tasks such as drilling or milling.
• Multi-Function CNC Machines: These machines can perform multiple tasks, such as cutting lock slots, drilling holes, and milling edges. They are more versatile and can handle a wider range of processing requirements, but they may be more complex and expensive.

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