OEM -86 Deep Freezer
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Zhejiang Heli Refrigeration Equipment Co., Ltd.
Zhejiang Heli Refrigeration Equipment Co., Ltd. is Vaccine Refrigerator Manufacturer and China -86 Deep Freezer Factory. As one of the early domestic players in ultra-low temperature refrigeration, Heli integrates R&D, manufacturing, sales, engineering, and after-sales services. The company employs 150 people, including nearly 50 in R&D and engineering, and operates a 25,000 m² facility with dedicated R&D, testing, and production lines. Driven by innovation and independent R&D, Heli has achieved over 60 technological breakthroughs and holds 40+ patents. It has also participated in key municipal science projects and contributed to national and industry standards. Heli’s product lines cover biomedical storage, lab instruments, aquatic deep-cold kitchen equipment, cold chain logistics, quick freezing systems, industrial environmental solutions, household refrigeration, and smart retail. Its solutions are widely used across biotech, research, marine, cold chain, healthcare, and consumer sectors.
Our Expert Team
Factory Tour

Zhejiang Heli Refrigeration Equipment Co., Ltd. owns a 25,000-square-meter modern industrial park, featuring a scientific layout and comprehensive functions. The company has established a full-chain industrial system covering technological R&D to finished product inspection, which provides a solid guarantee for the high-quality production of ultra-low temperature refrigeration equipment.

Advantage
  • High quality raw materials
    High quality raw materials

    We use high-quality raw materials, which are reliable and durable in quality.

  • OEM/ODM
    OEM/ODM

    We have a professional R&D team that can design products according to different needs.

  • Rich experience
    Rich experience

    We have a professional technical team that can improve the process based on the different characteristics of the products to extend their service life.

  • Quality inspection
    Quality inspection

    The quality inspection room is equipped with advanced quality inspection devices. Before each refrigerator is dispatched, it needs to undergo various tests to ensure its stability and reliability.

PRODUCTION PROCESS
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FAQ
  • Q. 1. What is a cryogenic medical refrigerator?

    A cryogenic medical refrigerator is a specialized refrigeration unit designed to preserve biological samples, vaccines, pharmaceutical products, and medical materials at ultra-low temperatures. These units ensure product stability, prevent degradation, and maintain the integrity of sensitive samples over long periods.

  • Q. 2. What temperature ranges do your refrigerators cover?

    Our product line includes models with various temperature capabilities:
    •Pharmaceutical refrigerators: +2°C to +8°C
    •Low-temperature freezers: down to –45°C or –60°C
    •Ultra-low temperature freezers: –86°C
    •Cryogenic freezers: as low as –150°C

  • Q. 3. What safety and quality certifications do your refrigerators have?

    Our products are manufactured in accordance with international standards and can be supplied with certifications such as FDA CE, ISO 13485, and ISO 9001. Each unit undergoes rigorous performance testing, quality inspection, and temperature calibration before delivery.

  • Q. 4. How do you ensure temperature accuracy and reliability?

    Each model is equipped with a high-precision digital temperature control system, real-time monitoring sensors, and audible/visual alarm functions to detect temperature deviations. Optional data logging and remote monitoring systems are available for enhanced safety and traceability.

  • Q. 5. Can the refrigerators be customized to meet specific requirements?

    Yes. We offer customization options for capacity, interior configuration, voltage, and monitoring systems. Custom branding, data interfaces, and alternative refrigerants (environmentally friendly options) can also be provided upon request.

  • Q. 6. Do you provide international shipping and after-sales service?

    Yes. We export globally and work with logistics partners experienced in handling precision laboratory equipment. Our technical team provides remote support, spare parts, and professional guidance for installation and maintenance.

  • Q. 7. What are the maintenance requirements for cryogenic refrigerators?

    Routine maintenance includes cleaning condenser filters, verifying temperature uniformity, and periodically checking door seals. Our after-sales team can provide maintenance guidelines and technical training for your staff to ensure optimal performance and longevity.

  • Q. 8. How can I choose the right model for my application?

    Our sales engineers will assist you in evaluating your storage requirements — such as temperature range, sample volume, installation space, and power configuration — to recommend the most suitable model for your application.

  • Q. 9. Do you work with distributors or OEM partners?

    Yes. We welcome collaboration with qualified distributors and OEM partners worldwide. We provide full technical support, marketing materials, and training to help our partners serve their markets effectively.

Certificate Of Honor
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News
Industry Knowledge Exhibition

Vaccine refrigeration is a critical aspect of maintaining the efficacy of vaccines, ensuring their effectiveness when administered to patients. Vaccines are highly sensitive to temperature changes and must be stored within a specific range to maintain their stability. Many vaccines require storage at temperatures between 2°C and 8°C, which is the standard for refrigerators used in healthcare settings. However, some vaccines, especially certain types of biologics like mRNA vaccines, demand even lower temperatures for preservation.

For instance, mRNA vaccines like Pfizer's require storage at ultra-low temperatures of approximately -70°C. Maintaining these temperature ranges is crucial because even small fluctuations can bring about a decrease in vaccine potency, potentially making them ineffective. As such, healthcare systems invest in specialized vaccine refrigerators and freezers designed to maintain precise temperature control. These refrigerators are often equipped with monitoring systems that alert staff to temperature deviations, ensuring vaccines remain within the prescribed range. Regular maintenance and calibration are also essential to guarantee accuracy and prevent unforeseen risks. Additionally, temperature mapping inside vaccine storage units ensures uniform cooling throughout the system, preventing hot spots that could compromise vaccine integrity.

Types of -86°C Deep Freezers

Deep freezers operating at -86°C are crucial in the storage of temperature-sensitive biological materials, such as viruses, cell cultures, and certain types of vaccines. These freezers are designed to offer precise and consistent low-temperature environments. There are several types of -86°C freezers, each suited for different applications in scientific and medical settings.

Upright -86°C Freezers: These are the common type found in laboratories, hospitals, and research facilities. They have a vertical configuration, allowing for efficient use of space while providing a large storage capacity. The shelving inside these freezers is usually adjustable, offering flexibility in accommodating various sizes of storage containers. These units often feature alarms and digital controls to monitor and maintain the temperature, ensuring a stable environment.

Chest -86°C Freezers: While less common than upright units, chest freezers are typically used when more bulk storage is required. They have a horizontal layout, which allows for better temperature uniformity, especially when storing larger quantities of samples. Chest freezers often use a more energy-efficient compressor system, making them suitable for institutions looking to reduce operational costs over time.

Laboratory -86°C Freezers: Designed specifically for research purposes, these freezers are built with advanced features like temperature monitoring and data logging. They are often used to store samples such as blood, tissues, and cell lines that require long-term preservation. Laboratory freezers are also equipped with additional insulation to minimize the risk of temperature fluctuations, providing peace of mind for researchers.

These -86°C freezers are equipped with safety features, including alarms and backup systems to ensure that the contents are stored at the correct temperature, even in the event of a power failure. The freezers also offer a variety of access options, from manual locking systems to automated, secure entry methods, depending on the level of security needed.

Functions of Biomedical Refrigerators and Freezers

Biomedical refrigerators and freezers play an essential role in preserving biological materials, vaccines, blood products, and medications, ensuring they remain effective and safe for use. These units are built with precise temperature control and additional features tailored to the sensitive nature of biomedical storage.

Temperature Control: One of the primary functions of biomedical refrigerators and freezers is the maintenance of specific temperature ranges. For refrigerators, this typically involves keeping temperatures between 2°C and 8°C, while freezers can extend to ultra-low temperatures, such as -20°C or -86°C, depending on the materials being stored. Accurate temperature monitoring is essential to prevent degradation of sensitive substances, such as vaccines and blood plasma, which can lose efficacy when exposed to improper temperatures.

Sample Storage: Biomedical refrigerators and freezers provide a controlled environment for storing various biological samples. These include vaccines, blood products, tissues, enzymes, and DNA/RNA samples, all of which require strict temperature conditions to prevent spoilage. The design of these units ensures that samples are stored safely, with minimal risk of contamination or damage. For example, some freezers are equipped with additional features like UV sterilization systems to reduce contamination risks.

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