Wholesale ULT Portable Freezer
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Zhejiang Heli Refrigeration Equipment Co., Ltd.
Zhejiang Heli Refrigeration Equipment Co., Ltd. is China Portable / Car Freezer Manufacturer and Sale Portable / Car 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
process
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

Ultra-low temperature (ULT) car freezers are specialized units designed to provide efficient and reliable cooling for various applications, particularly in the transport of sensitive goods like pharmaceuticals, biological samples, and even perishable food items. These freezers are built to operate in mobile environments, typically within vehicles, making them essential for industries where temperature control is crucial during transportation. The style of ULT car freezers is primarily defined by their compact design, robust construction, and integration with vehicle systems, ensuring that they deliver performance while being easy to use and transport.

One key feature of ULT car freezers is their compactness. Unlike traditional ULT freezers, which are often bulky and designed for stationary use in laboratories or storage facilities, car freezers are tailored to fit into vehicle compartments. These units are designed to be as space-efficient as possible, often featuring a box-like structure that can be easily mounted or placed in a cargo area. This compact design ensures that the freezer can operate in a limited space without sacrificing performance or temperature stability.

Another important aspect of ULT car freezers is their insulation. Given the mobile nature of these units, effective insulation is critical to preventing heat transfer and maintaining a low internal temperature despite external environmental changes. Many ULT car freezers are equipped with high-density insulation materials that are both energy-efficient and capable of keeping temperatures stable, even in weather conditions.

Portability of ULT Portable Freezer

Portability is a key factor when it comes to ULT portable freezers, which are designed to provide flexible and reliable storage of temperature-sensitive materials while offering ease of movement. These portable units are widely used in industries such as pharmaceuticals, food service, and research, where the ability to transport goods at ultra-low temperatures is essential. The portability of these freezers is primarily determined by their design, size, and the power systems they employ.

One of the defining features of portable ULT freezers is their lightweight and compact construction. Unlike larger stationary freezers, these units are designed to be easily transported from one location to another. Many portable models come equipped with sturdy handles, wheels, or even rugged frames, making it easier to load and unload them into different transport vehicles. This mobility ensures that professionals can carry out their work across multiple sites without the constraints of fixed storage locations.

In addition to ease of movement, ULT portable freezers are typically designed to be compatible with both standard electrical outlets and vehicle power systems, such as DC power sources. This flexibility allows the freezer to be powered through different means, whether it's from a generator, vehicle battery, or standard electrical grid. Some models even include rechargeable batteries that provide a degree of autonomy, ensuring continued operation during power outages or when access to a power source is limited.

Portable Deep Freezer for Car Advantages

Portable deep freezers for cars are specialized cooling units designed for transportation purposes, allowing users to store frozen goods or temperature-sensitive items while on the move. These units are often used in food service, pharmaceutical transport, and even by recreational travelers who need to preserve items like food and medications during long trips. The advantages of portable deep freezers for cars are rooted in their efficiency, flexibility, and ease of use.

One of the main advantages of portable deep freezers for cars is their versatility. These units are designed to be compact and lightweight, making them easy to fit into the trunk or cargo area of a vehicle. They can operate on a variety of power sources, including car batteries, generators, or AC power outlets, offering flexibility depending on the situation. This makes them ideal for transportation across different environments, whether it's a long road trip, a cross-country transport of medical supplies, or a weekend getaway with frozen food.

Another key advantage is their temperature stability. Portable deep freezers are designed to maintain low temperatures, often as low as -20°C or even lower, depending on the model. This ensures that the goods inside remain preserved for the duration of the journey. Advanced insulation materials and efficient compressor systems help minimize temperature fluctuations, preventing items from thawing or becoming damaged.

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