Automatic Small Freeze Drying Machine

HFD-20 Automatic Small Freeze Drying Machine : The Professional Choice for Large-Scale Batch Preservation

The HFD-20 Automatic Small Freeze Drying Machine stands as a premier solution in the food preservation industry, meticulously engineered to bridge the gap between small-scale home appliances and massive industrial systems. With a significant freeze-drying area of 2m² and a high-efficiency 6L/S pumping rate, this machine is designed for operators who require a reliable, high-output platform for processing approximately 25-26kg of material per batch. Constructed primarily from premium 304 stainless steel, the HFD-20 guarantees a hygienic, food-grade environment that meets the most rigorous safety standards for international markets.

 Automatic Small Freeze Drying Machine Advantages:

• Capacity Configuration and Tray System: The equipment is outfitted with six standardized trays, each measuring 390 × 900 mm. The 53 mm shelf spacing design is engineered to accommodate bulky materials-such as meat and pet food-while simultaneously providing ample space for steam sublimation for high-moisture fruits and vegetables, thereby ensuring uniform thermal compensation even under heavy loads.
• Cold Trap Capture Efficiency: Its dedicated refrigeration system is capable of lowering the cold trap temperature to -55°C. This significant temperature gradient facilitates the rapid capture of sublimated water molecules, converting them into ice crystals that adhere to the cold trap surface; this process maintains the high-vacuum environment required within the system, thereby shortening the overall drying cycle.
• Vacuum Environment and Material Integrity: The system's ultimate vacuum level can be maintained below 2 Pa. In this ultra-low-pressure environment, water transitions directly from a solid (ice) state to a gaseous state via sublimation. This physical process minimizes thermal degradation, thereby preserving the material's original cellular structure, color, and the majority of its heat-sensitive nutritional components (such as vitamins and active enzymes).
• PLC-Based Interactive Control: The HFD-20 utilizes a PLC-based control scheme integrated with a touchscreen interface. Operators can monitor real-time pressure fluctuations and temperature compensation curves directly through the system (with support for switching between Chinese and English languages). This control solution allows users to customize multi-segment drying curves tailored to different materials, ensuring consistency across batch production runs.
• Environmental Adaptability: Unlike liquid-cooled systems that rely on a water supply, this equipment employs an air-cooling mechanism, thereby simplifying installation requirements for laboratories and small-to-medium-sized workshops. The system is designed to operate stably within an ambient temperature range of 10°C to 35°C.

Diverse Industry Applications: This unit is perfectly suited for the commercial pet treat industry, specialty coffee and tea production, the preservation of seasonal agricultural harvests, and the drying of high-value biological samples or medicinal herbs. The HFD-20 Automatic Small Freeze Drying Machine versatile tray spacing of 53mm provides ample clearance for various product types, from thin fruit slices to thick cuts of meat.