Drying is a crucial process in food preservation, significantly extending shelf life and maintaining quality. The efficiency of drying equipment directly impacts the final product's value and usability. In recent years, China has made remarkable 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 for exporting dehydrated vegetables. These machines use high-temperature steam to heat air, reaching over 120°C, making them suitable for drying cabbage, spinach, garlic, onions, green bean sprouts, pumpkin slices, radish slices, and more. The system allows temperature control, features an energy-efficient fan, and includes automatic condensate drainage. The stainless steel construction ensures compliance with food safety standards.
Changzhou No. 2 Drying Equipment Factory introduced the third-generation DWT series, ideal for large-scale drying of root vegetables, leaves, and granular materials like garlic, pumpkins, carrots, and apples. This equipment has been widely adopted by companies across Zhejiang, Shandong, and Fujian, proving its reliability and performance.
The Heilongjiang Academy of Agricultural Machinery and Engineering Research Institute developed a hot-air dehydration system that works efficiently on vegetables, wild plants, fungi, and tea. Materials are conveyed through the dryer, where moisture is reduced by 75–80% in the high-temperature zone and further lowered to 3–5% in the low-temperature section, ensuring optimal drying results.
Changzhou Yangtze River Drying Equipment Co., Ltd. created a closed-loop superheated solvent steam fluidized bed dryer. It integrates drying and solvent recovery, making it ideal for processing alcohol-soluble materials. This technology enhances efficiency, reduces energy consumption, and is widely used in food, pharmaceuticals, and chemical industries.
Nanjing Yatai Institute of Microwave Energy developed microwave vacuum freeze-drying equipment, which is efficient for drying sensitive materials like vegetables, royal jelly, and ginseng. It offers even heating, faster drying, and better nutrient retention. The low-temperature process preserves color, flavor, and texture, making it ideal for health products and specialty foods.
Shenyang Aerospace Xinyang Frozen Equipment Manufacturing Co., Ltd. produces LG-125 vacuum freeze-drying systems that preserve the original structure of food through sublimation. The result is high-quality, rehydratable products that maintain freshness and nutritional value. This technology is widely used in fruits, meats, dairy, and instant food products.
Changzhou Huayuan Drying Equipment Co., Ltd. developed the CT series drum dryer, which uses internal conduction for rapid drying. With up to 80–90% thermal efficiency, it is suitable for liquids, pastes, and viscous materials such as meat, dairy, and starch.
Jiangsu One-Step Drying Equipment Co., Ltd. offers the HG roller scraper dryer, ideal for thin-film drying of liquids or slurries. It provides fast and uniform drying, making it suitable for sheet-like or paste-like materials. The DWT closed-loop belt dryer also excels in energy efficiency and meets GMP requirements.
The HLG high-speed mixing granulator dryer combines mixing, granulating, and drying in one unit, improving efficiency and reducing binder usage. The DLB60 multi-functional coating dryer offers excellent coating uniformity and is widely used in food and pharmaceutical applications.
Sichuan Agricultural Machinery Research and Design Institute developed a mobile grain dryer using straw gas as a heat source, offering cost-effective and efficient drying for grain storage. Finally, the Nanjing Institute of Agricultural Mechanization introduced a microwave tea drying machine that improves tea quality by reducing moisture while enhancing flavor and nutrients.
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