Dual or Single Drum Operation: Diversified Technical Routes to Meet Diverse ScenariosCurrently, the spiral freezing machine market has adopted a three-pronged technical route of single drum, double drum, and self-stacked conveyor belt to meet the differentiated demands of various food processing scenarios. The single drum spiral freezing machine, as the mainstream model, is suitable for medium- to large-scale continuous freezing of aquatic products, meat, and baked goods. With a mature and stable refrigeration system and moderate floor space requirements, it occupies the largest market share. The double drum spiral freezing machine, on the other hand, achieves greater production output under the same floor space conditions, and its optimized net belt running path and cold air circulation efficiency make it particularly suitable for large meat processing plants, poultry processing enterprises, and other high-demand scenarios requiring extremely high unit area production capacity. Meanwhile, new-generation products represented by the self-stacked spiral freezing device of Sifang Technology, through innovative design of the transmission system, enable the self-stacking of the net belt and operation, and in combination with intelligent control and reverse air flow technology, improve heat exchange efficiency while further compressing floor space, becoming an important direction for the industry's future evolution. Technical Upgrade as the Main Theme: Energy Efficiency, Intelligent Control, and Low-Carbon Refrigeration Moving Forward TogetherFacing global energy price fluctuations and the intensification of "carbon neutrality" policies, the spiral freezing machine industry is undergoing a profound transformation from "solely pursuing production capacity" to "optimal energy efficiency throughout the life cycle". In terms of energy-saving technology, energy recovery devices, efficient variable-frequency compressors, and heat-air defrosting optimization have been widely applied in the new generation of equipment, helping food processing enterprises significantly reduce unit tonnage electricity consumption. In terms of intelligent management, the integration of IoT sensors and predictive maintenance systems has become the core selling point of leading manufacturers - through real-time monitoring of evaporator frosting status, fan operating parameters, and net belt load, the system can automatically adjust refrigeration capacity and operation rhythm, ensuring consistent and stable center temperature of frozen products and stability of quality, while significantly reducing the risk of unplanned downtime. Additionally, the global regulatory trend towards stricter control of low GWP refrigerants (such as CO₂, ammonia, HFOs) is forcing manufacturers to accelerate the elimination of high GWP refrigerant solutions and adopt more environmentally friendly refrigeration system designs, which has become an "entry threshold" for entering the EU and North American high-end markets. Application Scenarios Continuously Penetrate: Beyond Meat and SeafoodDue to their compact floor space, stable production capacity, and uniform cooling, the application scope of spiral freezing machines has expanded from traditional meat and poultry and aquatic product processing to baking pastries, pre-prepared dishes, dairy products, ice cream, seasonings, and other emerging fields. Especially with the explosive growth of the global frozen food and ready-to-eat food markets, spiral freezing systems with "fast passage" and "flexible production" capabilities are becoming the preferred solution for food processing enterprises for production line upgrades. Competitive Landscape and Overseas Expansion Wave: Chinese Enterprises Accelerating the Capture of Global SharesFrom the global competitive situation, international giants such as GEA, JBT Corporation, Marel, and FPS Food Process Solutions still occupy the first echelon, but their market shares are being challenged by Chinese enterprises represented by Sifang Technology, Ice Wheel Environment, Dalian Ice Mountain, and Fujian Snow, with their complete supply chain support, rapid response to customized services, and more competitive cost performance. Chinese enterprises not only rapidly penetrate emerging markets such as Southeast Asia and South America but also start to export technologies and complete line solutions to European and North American high-end markets.

Recently, focusing on the upgrading of food cold chain equipment, the new-generation hydraulic plate freezer has been officially launched to the market. Adopting the hydraulic compression contact quick-freezing principle, the equipment features uniform freezing, low dehydration loss, controllable energy consumption and compact structure. It is suitable for the industrial quick-freezing of block-shaped raw materials including aquatic products, poultry meat and prepared food, delivering low-loss, high-quality fresh-locking solutions for food processors and helping the quick-freezing industry improve quality, efficiency and revenue while cutting costs. In food quick-freezing processing, conventional blast freezing commonly suffers from high dehydration loss, uneven freezing and juice loss of raw materials, which directly affect the finished product yield and market selling price. This hydraulic plate freezer adopts a hydraulically driven compression structure. With adjustable pressure, it enables tight contact between food and high-thermal-conductivity aluminum alloy freezing plates to eliminate air insulation gaps. It achieves rapid temperature reduction via double-sided direct contact heat transfer, forming fine ice crystals quickly to fully preserve the cellular structure of raw materials. It maximally retains the original flavor, juice and nutrition of ingredients, greatly reduces product dehydration loss, and improves the yield rate and premium value of finished products. The core freezing plates of the equipment are made of food-grade aluminum alloy with outstanding thermal conductivity and high heat exchange efficiency. The frame, pipelines and chamber body of the whole machine adopt SUS304 stainless steel, paired with high-density polyurethane insulation layers for excellent cold retention performance. It meets hygienic standards for food contact, with smooth surfaces easy to rinse and sanitize, suiting the routine cleanliness management requirements of food factories. Equipped with an independent hydraulic station and hard-chrome wear-resistant cylinders, it delivers stable lifting and compression with adjustable pressure and low leakage risk. Built-in intelligent electronic control system supports customized freezing duration and temperature parameters, realizing the full process of compression, quick freezing, pressure relief and discharging with one click. It is easy to operate and can be monitored by a single operator, applicable to multiple scenarios such as onshore processing plants and ocean-going fishing vessels. Compared with tunnel quick-freezing equipment, the hydraulic plate freezer features a compact structure and smaller footprint. It requires no high-flow supporting fans and achieves lower overall energy consumption, making it flexible for renovation projects with limited space in small and medium processing plants, aquatic terminals and fishing vessel decks. It is widely used for quick-freezing of aquatic products such as fish fillets, fish paste, shrimp and shellfish, as well as cut meat, small-packaged poultry, boxed prepared dishes and fruit & vegetable blocks. It serves as the preferred fresh-locking equipment for standardized processing of export aquatic products and prepared food, delivering neatly shaped and stable-quality frozen products that satisfy the high standards of foreign trade orders.