Laboratory Small In-Situ Freeze Dryer

The LGJ-10A-50 laboratory small-scale in-situ freeze dryer is specifically designed for research institutions, pharmaceutical enterprises, and biotechnology laboratories. It integrates freezing, vacuum drying, and in-situ pre-freezing functions to meet the efficient and stable freeze-drying needs of small-batch samples.

Working Principle
The equipment utilizes compressor refrigeration and vacuum pump suction technologies in coordination. Samples are pre-frozen in the cold trap to below their eutectic point, and then moisture is directly removed through sublimation under an extremely high vacuum environment (≤5 Pa), avoiding structural damage caused by liquid-phase water transitions, thereby preserving active ingredients, biological properties, and chemical stability.

Core Features and Advantages

• In-Situ Pre-Freezing Function: Materials are directly frozen within the freeze-drying chamber without the need for transfer, preventing cross-contamination and thermal shock. This is particularly suitable for heat-sensitive biological products, proteins, cell extracts, and the like.
• Precision Temperature Control System: Utilizes intelligent PID temperature control technology. The minimum temperature of the cold trap can reach -50 °C, and the shelf temperature is controllable within a range of -40 °C to +60 °C, with a temperature control accuracy of ±1 °C, meeting the optimization requirements of freeze-drying curves for different materials.
• Efficient Vacuum Maintenance: Equipped with a high-performance oil-free vacuum pump, achieving an ultimate vacuum of ≤5 Pa with low vacuum leakage rate, ensuring long-term stable operation and improving drying efficiency.
• Compact Design: Compact footprint (approximately 0.5 m²), fully integrated design, suitable for use on laboratory benchtops or within fume hoods, saving space and offering convenient operation.
• Intelligent Control System: Features a 7-inch touchscreen, allowing preset multi-stage freeze-drying programs, real-time display of cold trap temperature, shelf temperature, vacuum level, and operation curves, with support for data export and USB storage.

Technical Parameters

• Minimum Cold Trap Temperature: -50 °C
• Effective Shelf Area: 0.1 m²
• Number of Shelves: 3 layers (removable)
• Shelf Temperature Difference: ≤±1 °C
• Ultimate Vacuum: ≤5 Pa
• Water Capture Capacity: 3 kg/24h
• Power Requirements: 220 V / 50 Hz

Applicable Scenarios
Widely used for the preparation and preservation of biologically active substances (enzymes, vaccines, antibodies), traditional Chinese medicine extracts, microbial strains, nanomaterials, and food freeze-dried samples. Particularly suitable for small-batch freeze-drying process exploration in early R&D stages, as well as sample processing requiring precise control of heating rates, such as the development of advanced formulations like liposomes and microsphere preparations.

The LGJ-10A-50, with its core advantages of high-precision temperature control, low vacuum leakage, and compact structure, provides a reliable in-situ freeze-drying solution for laboratories, making it an ideal choice for R&D and quality control processes.