Shanghai Hanbell was established in 1996 and listed on Shenzhen A-share market in 2007. Jinan, Guangzhou, Nanjing and Chongqing branches have been set up one after another, and the subsidiaries of Zhejiang Hanson, Shanghai Comer, Hanbell HongKong, Hanbell Vietnam, Hanbell Korea and Zhejiang Comer have been set up one after another. All these reflect the achievements of HANBELL people's hard work in the past 27 years.
HANBELL PRECISE MACHINERY COMPANY 27 YEARS OF HISTORYAIMS TO OPEN
From July 10th to 12th, 2025, the 17th GFSC 2025 Cold Chain Conference, hosted by the Cold Chain Logistics Professional Committee of the China Federation of Logistics & Purchasing (CFLP), was held in Fuzhou. Centered around the theme "Reshaping------Exploring New Evolutionary Paths in the New Era," the conference brought together over 800 industry leaders, including representatives from government agencies, experts, scholars, and executives from renowned enterprises. Hanbell, as one of the Gold Sponsors of this conference, was invited to participate. Together, participants shared industry trends, cutting-edge technologies, practical case studies, and innovative technologies, exploring new directions for the future development of cold chain logistics. The aim was to jointly create new models and opportunities, injecting new vitality into the industry's development.
On the afternoon of July 11th, Gao Yueming, Section Manager of the Refrigeration Market Promotion Department at Hanbell, delivered a keynote speech titled "How to Enhance the Core Competitiveness of Cold Storage Through Technological Empowerment." He provided a profound analysis of the increasingly competitive market environment: "The continuous changes in market demand and national policies impose higher requirements on enterprises' independent R&D capabilities. Only by continuously optimizing products and providing more valuable solutions for the industry can companies achieve stable development during this period of intensifying competition." He also analyzed the operational effectiveness of Hanbell's new technologies in multi-temperature zone cold storage and quick-freezing equipment projects through practical case studies.
China is currently navigating profound changes unseen in a century. The nation has proposed a series of policies, including the Dual Circulation Strategy (domestic and international), the "14th Five-Year Plan" for Cold Chain Logistics Development, and Carbon Peak and Carbon Neutrality goals. The demand for energy saving and consumption reduction in the refrigeration and freezing industry continues to rise. Systems that balance energy efficiency, environmental protection, and safety are becoming the demand trend. Consequently, choosing refrigeration systems and compressors has become a key consideration for various freezing and refrigeration projects aiming for green, low-carbon operations, cost reduction, and efficiency improvement.
Hanbell addresses different freezing and refrigeration application scenarios and characteristics by utilizing high-efficiency refrigeration equipment. This approach reduces the actual power consumption during cold storage operation and improves the utilization efficiency of electrical energy. Hanbell provides cold storage operating enterprises with comprehensive green, low-carbon solutions focused on cost reduction and efficiency enhancement.
1. How Compressor Equipment Enterprises Empower the Cold Chain Industry
As the core component of refrigeration systems, reducing the carbon emissions of screw refrigeration compressors is crucial for achieving carbon reduction in refrigeration systems and supporting China's "Dual Carbon" strategic goals. Carbon emissions reduction can be approached by decreasing both direct and indirect carbon emissions.
I. Indirect Carbon Emissions
Hanbell provides highly efficient and energy-saving integrated solutions for three categories of cold storage applications with distinct scenarios and characteristics. By using refrigeration equipment with high COP (Coefficient of Performance), Hanbell reduces the actual power consumption during cold storage operation and enhances the utilization efficiency of electrical energy, thereby decreasing the indirect carbon emissions of cold storage facilities.
Addressing Uncertain Storage Needs & Variable Temperatures (e.g., Logistics Hubs): To meet varying temperature requirements for different goods within the same cold storage facility, Hanbell developed the RC2-D series of dedicated refrigeration compressors. In variable-temperature storage projects, mainstream single-stage machines typically require two separate units due to operational range limitations (one for high-temperature zones, one for low-temperature zones). The RC2-D product can simultaneously meet the needs of such variable-temperature applications.
Enhancing Efficiency in Freezers (Low-Temperature Cold Storage): While single-stage compressors dominate the global cold storage market, their performance in freezer applications lags significantly behind two-stage compressors. Conventional two-stage compressors were limited by an evaporation temperature ceiling of around -30°C, preventing their use in freezers. Hanbell overcame this limitation through technological optimization, raising the evaporation temperature ceiling to -10°C and introducing a wide-temperature-range two-stage compressor. The LT-S-L series offers a 20% to 30% improvement in comprehensive energy efficiency compared to conventional low-temperature single-stage screw compressors in freezer applications. Given that compressor power consumption accounts for 85% to 90% of a freezer's total electricity usage, this efficiency gain is highly valuable for end-users. This product has been awarded the titles "2021-2022 Energy-saving and Eco-environmental Product by the Chinese Association of Refrigeration" and "Shanghai Energy-saving Product." This high-efficiency technology aligns with China's Dual Carbon policy trend and has gained market acceptance.
Optimizing Partial Load Efficiency in Quick Freezers: Compressors in quick-freezer applications often operate under partial load conditions. Conventional slide valve capacity control experiences significant efficiency degradation during unloading, especially severe under quick-freezing conditions. By introducing variable frequency (VF/VFD) technology, Hanbell successfully developed the LT-S-IVX series of fully-equipped two-stage VFD compressors, enabling efficiency performance during unloading comparable to full load operation. Under quick-freezing conditions, the LT-S-IVX series offers approximately 20% higher comprehensive energy efficiency than fixed-speed two-stage machines. In low-temperature refrigeration conditions, its comprehensive efficiency is about 30% higher than fixed-speed low-temperature single-stage machines. This makes it ideal for quick freezers and low-temperature cold storage requiring higher energy savings, fundamentally improving system efficiency, as validated by numerous project applications.
II. Direct Carbon Emissions
Beyond using high-efficiency equipment to reduce indirect emissions, employing natural refrigerants can significantly reduce the charge of fluorinated refrigerants (F-gas) within the system, thereby minimizing direct carbon emissions resulting from accidental leaks. The table below compares different compressor selection schemes using pure F-gas systems versus natural refrigerant systems in freezer and quick-freezer applications:
Based on the above comparisons:
In Freezer applications, single-unit two-stage technology holds clear advantages in both efficiency and cost.
In Quick Freezer applications, single-unit two-stage technology has certain advantages in efficiency and cost; incorporating VFD technology achieves the best overall operating efficiency.
Utilizing CO2 secondary coolant technology can drastically reduce refrigerant charge. It also allows for factory completion of refrigeration system unit manufacturing and full-system leak testing, significantly reducing leakage risks caused by poor on-site welding. This approach balances cost, efficiency, and environmental protection. However, since it still involves charging some F-gas, projects prioritizing environmental protection above all else should still opt for the NH3/CO2 cascade system.
When applying the NH3/CO2 cascade system to medium/large freezer/quick-freezer projects, using screw CO2 units requires fewer compressors, offering advantages in cost and footprint. Implementing full VFD technology can significantly improve the project's overall energy efficiency.
2. Upholding Energy-saving Beliefs and Driving Continuous Innovation
With the development of cold chain logistics, food processing, and related industries, customer demands for refrigeration screw compressors are no longer limited to the single function of refrigeration but are shifting toward greener, more efficient, and multifunctional solutions. For example, the rise of the fresh food e-commerce industry requires compressors to have rapid cooling, precise temperature control, and remote intelligent monitoring capabilities. The pharmaceutical cold chain sector, on the other hand, places extremely high demands on temperature stability and equipment reliability. Hanbell has consistently empowered cold chain logistics enterprises with its energy-efficient and high-performance philosophy.
In 2025, Hanbell launched the LC series of new-generation semi-hermetic single-stage refrigeration screw compressors for variable-temperature and quick-freezing cold storage. This product adopts variable internal volume ratio technology, enabling the compressor to maintain optimal performance during both initial temperature pull-down and operation at design temperature points, ensuring efficient application under varying conditions for both variable-temperature and quick-freezing cold storage. The flow path and structure specifically designed for low-temperature applications significantly reduce noise and vibration. Equipped with a new integrated cloud-based protection module, it features oil flow protection, pressure differential protection, and other functions, simplifying the unit control system while enabling real-time monitoring of the compressor's operating status to ensure normal operation.
The second flagship product is the LTII-S-200/100-IVX (450 HP), currently Hanbell’s largest two-stage variable-frequency compressor, capable of reaching up to 450 HP. In quick-freezing and individual freezing applications, it can achieve a capacity of 4 tons, meaning it can meet high-demand energy requirements with a semi-hermetic compressor, addressing some of the shortcomings of open-type compressors. For example, open-type compressors suffer from shaft seal leakage issues, whereas semi-hermetic compressors eliminate the need for shaft seals and periodic replacements. Additionally, open-type compressors are bulky, require external motor mounting, and are more complex to operate. They also need regular realignment due to vibration-induced misalignment, demanding higher technical expertise from operators. Furthermore, this model is equipped with a variable-frequency solution, sold as a complete package with a frequency converter and controller, enhancing the reliability of variable-frequency technology and overall energy efficiency.
The third product is the RGII series, a new-generation open-type single-stage refrigeration screw compressor compatible with ammonia and other refrigerants. It features an all-new rotor profile and structural design, significantly improving performance, along with an enhanced shaft seal design for extended lifespan. The product incorporates a built-in intermediate bracket, eliminating the need for alignment, simplifying installation, and easing maintenance. It is subdivided into M and L sub-series to meet different operational needs. The design includes an economizer shut-off valve and a built-in discharge check valve, streamlining refrigerant piping configurations. With variable internal volume ratio (Vi) technology, it ensures efficient and stable operation across varying conditions. The capacity slide valve allows stepless adjustment, delivering precise cooling capacity as needed to save energy. It also integrates oil filters, oil flow switches, and differential pressure switches, simplifying oil circuit configurations. A new integrated protection module provides functions such as oil flow protection and differential pressure protection, reducing control system complexity.
In recent years, Hanbell has significantly increased investment in low-temperature products, adopting a scenario-based approach to R&D and upgrades. By tailoring solutions to different scenarios and user needs, the company meets current market demands. Beyond continuous product improvements, Hanbell is actively expanding into global markets to enhance its international service capabilities and influence, aiming to provide comprehensive energy-efficient compressor solutions for industries like cold storage. We will continue collaborating with partners to deliver high-efficiency, low-consumption cold storage solutions, creating value and contributing to the sustainable development of the cold storage industry!
