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As environmental directives such as the Kigali Amendment to the Montreal Protocol, the European F-Gas regulations, and the US AIM Act enforce strict limits on synthetic refrigerants, R744 (Carbon Dioxide) has emerged as the definitive natural refrigerant solution. CO2 is non-toxic, non-flammable, and has a Global Warming Potential (GWP) of exactly 1.
However, working with CO2 demands advanced thermal engineering. Operating under transcritical pressures of up to 120 bar, CO2 condensers and gas coolers require unmatched mechanical integrity. Taojun Refrigeration designs and manufactures gas cooling solutions that optimize transcritical cycles, delivering maximum heat rejection efficiency even in high ambient temperatures.
By utilizing high-grade copper alloys, specialized microchannel systems, and heavy-duty structural designs, we ensure our CO2 condensers mitigate high thermal stresses, prevent pressure drops, and boost the overall COP (Coefficient of Performance) of industrial and commercial refrigeration units.
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo—a coastal hub known for industrial engineering and advanced logistics. Founded in 1988, our predecessor was the Xiangshan Refrigeration Accessories Factory of Zhejiang University. Over the past 38 years, we have transitioned from a localized manufacturing workshop into a leading national high-tech enterprise.
Our core competence centers on designing, engineering, and manufacturing filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, and air conditioning cable ties. Known domestically and internationally under our premier brand "Lingshan", our components are recognized for system reliability and uncompromising quality control.
Today, Taojun Refrigeration serves as a global OEM/ODM strategic partner for home appliance giants, including Haier, Xinfei, Midea, Gree, Whirlpool, Electrolux, and Huarui, sending key components to buyers in Europe, the Americas, Southeast Asia, and the Middle East.
Established as an offshoot of Zhejiang University's engineering incubator, applying advanced thermodynamic theory directly to fabrication lines.
Holding validated certifications including ISO9001:2015, EU RoHS directives, REACH standards, and US Underwriters Laboratories (UL) certification.
Staffed by 15 seasoned engineers, including doctors and researchers from the University of Science and Technology of China (USTC), driving thermal innovation.
Helping OEMs, refrigeration engineers, and commercial HVAC buyers navigate regulatory compliance and technology integration.
Global supply chains face challenging headwinds: sourcing high-quality thermal parts while managing cost, compliance, and strict performance metrics. Global commercial refrigeration OEMs require components that not only boast a long lifecycle but are optimized for natural refrigerants like R744 (CO2).
At Taojun, we solve these supply chain risks. We understand that a CO2 condenser is not just a heat exchanger; it is a critical safety node. Due to the high transcritical operating pressure of CO2 systems, buyers need to rely on materials with superior yield strength, helium leak-tested integrity, and precise dimensions to guarantee zero-leak joints inside their assemblies.
Tour our state-of-the-art production floors, advanced test laboratories, and intelligent management facilities in Ningbo.
Every condenser, copper filter drier, and accessory leaving our production line undergoes rigorous performance verification. We carry out high & low temperature cycle tests at +75°C and -35°C for 500 consecutive hours.
Thermal shock testing ranges from 10°C to 90°C, and damp heat humidity tests run for 500 hours. Our smart films and electronics run through a mandatory 24-hour aging process, with roll components tested at 100V high voltage to guarantee zero insulation breakdown.
Analyzing industry shifts towards microchannel designs, smart thermal monitoring, and ultra-high pressure ratings.
By shrinking the internal channel diameters, we maximize the heat transfer surface area per unit volume. This drastically reduces the necessary R744 refrigerant charge, reducing raw material costs and environmental footprint.
Developing integrated heat exchangers equipped with IoT pressure transmitters and temperature sensors, enabling real-time efficiency monitoring and preventive maintenance alerts for refrigeration networks.
Providing custom multi-pass flow patterns that allow systems to toggle smoothly between subcritical and transcritical states. This guarantees stable COP metrics even under volatile ambient temperature conditions.
The thermodynamic characteristics of R744 demand a paradigm shift in manufacturing. Unlike standard HFC systems, a CO2 gas cooler works at supercritical pressures where the gas does not condense inside the heat exchanger, but rather changes density gradually. This requires custom inner-grooved pipes and exact fin pitch configurations to maximize the cooling effect of the air stream.
Our engineering roadmap addresses this directly by focusing on low-carbon alloy steel and high-durability copper tubes (Bundy Tubes) that resist fatigue from high-pressure pulsation. Through partnership with Zhejiang University, we simulate these extreme thermal fatigue cycles to build products that deliver 15+ years of reliable service.
A world-class brand is always anchored by a strong internal culture. At Taojun, we believe our corporate culture is formed through the alignment of three phases: Impact, Infiltration, and Integration. Our operational foundation is built on four core values: Honesty, Innovation, Responsibility, and Cooperation.
Honesty: We adhere to people-oriented management, premium reputation, and uncompromising quality. Honesty is the true source of our competitive edge.
Innovation: Innovation leads to industrial strength. Our engineers continuously innovate in technology, manufacturing methods, and enterprise management.
Responsibility: We bear a strong sense of mission for our clients' success and global environmental sustainability.
Cooperation: Working closely with clients, universities, and quality standard certifiers to build win-win outcomes.
Founded as Xiangshan Refrigeration Accessories Factory of Zhejiang University.
Deployment of the MES intelligent workshop management system to optimize component tracking.
Achieved national high-tech status and expanded global sales networks for green CO2 refrigeration components.
Juntao Refrigeration (Ningbo Taojun Refrigeration Equipment Co., Ltd.) maintains documented verification of our ISO-9001 quality management framework.
Our certification register GB/T19001-2016/ISO9001:2015 (Registration No: 41325Q00065R0S) confirms our eligibility to design, develop, and manufacture complex thermal components including filter driers, condensers, and access valves.
Verifiable through the Certification and Accreditation Administration of China (CNCA) portal at www.cnca.gov.cn, this framework ensures our procurement partners receive high manufacturing consistency.
Main Certification Document
Scope of Certification Details
Delivering engineering-centric customer support from project initiation through the lifetime of the cooling system.
Answering common design and engineering questions regarding CO2 condensers, filter driers, and installation compliance.
Explore the remainder of our precision series line-up, featuring robust copper and brass connections engineered for durability.
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