

Medical Low-Temperature Freezer
Introduction:
Gree’s -86°C medical ultra-low temperature freezer was officially launched in 2023. It is an independently developed cryogenic storage solution designed for biomedical and scientific research applications, primarily used for the long-term safe preservation of viruses, bacteria, biological tissues, organs, cells, clinical samples, and other biomaterials.

Core Positioning & Application Fields:
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Main Applications: Storage of viruses, bacteria, biological tissues, organs, fertilized eggs, DNA/RNA, and biological products.
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Applicable Scenarios: General hospitals, centers for disease control and prevention (CDCs), pharmaceutical R&D companies, university research institutes, third-party testing laboratories, blood stations, and vaccination centers.
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Temperature Range: Adjustable from -86°C to -40°C, covering the standard temperature zone for biological sample storage.

Key Performance:
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Faster Cooling (≈20% improvement)
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Takes only 240 minutes to cool from 25°C to -80°C (national standard: ≤ 480 minutes).
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Recovers to -80°C within 10 minutes after door opening for 1 minute, greatly reducing sample exposure risk.
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Superior Temperature Uniformity (≈10% improvement)
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Internal temperature deviation across shelves ≤ ±3°C (national standard: ≤ ±6°C).
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Single-point temperature fluctuation ≤ ±2°C (industry standard: ≤ ±6°C), ensuring precise constant temperature control and avoiding freeze-thaw damage to samples.
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Comprehensive Safety Protection
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Long-lasting power-off insulation: Dual foaming inner/outer doors + multiple gaskets reduce heat leakage by 25%; internal temperature remains above -50°C for 300 minutes at -80°C after power failure.
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Stable operation in wide ambient temperature: Normal cooling at 10°C–43°C, still reaching -86°C at 43°C high temperature.
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Full-range alarms: Over-temperature, door open, power failure, high ambient temperature, sensor fault, and other real-time alerts.
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Technical & Design Highlights:
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Core Technologies: Cascade dual-variable frequency refrigeration, enhanced ultra-low temperature heat transfer, precise constant temperature control, and multi-layer enhanced insulation. Energy consumption reduced by 25%, with daily power use < 11 kWh (832L model).
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Eco-friendly Refrigerant: Uses R290/R170 pure hydrocarbon refrigerants with ODP = 0 and GWP ≈ 0, achieving green and low-carbon operation.
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User-friendly Interface: 10-inch smart touchscreen displaying real-time temperature, voltage, and status; supports over 10 years of data storage with standard USB export, compatible with sample bank information management.
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Durable & Easy to Clean: Thickened SUS304 stainless steel interior and shelves, corrosion-resistant and easy to clean; pressure balance port design for smooth frequent door opening.

Core Value:
Focused on the core demand for biological sample safety, this product achieves industry-leading performance in cooling speed, temperature uniformity, and temperature fluctuation. It provides efficient, stable, and safe ultra-low temperature storage solutions for scientific research and medical applications.




