Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a beautiful tourist city. Founded in 1988, its predecessor was Xiangshan Refrigeration Accessories Factory of Zhejiang University. Over the past three decades, our company has evolved into a national high-tech enterprise (certified in 2021) and a major global supplier of high-precision heat condensers, copper filter driers, stop valves, brass accessories, and complex HVAC system fittings.
We are dedicated to structural design optimization, process automation, and strict quality control. The "Lingshan" brand is well-known within the domestic refrigeration market, and our newer "Taojun" product lines (condensers, stop valves, and copper filter driers) have gained substantial traction in North America, Europe, South America, and Southeast Asia. Through strategic partnerships with major appliance manufacturers, we deliver robust commercial-grade solutions for systems using modern, high-pressure refrigerants.
The global heating, ventilation, air conditioning, and refrigeration (HVAC-R) industry is undergoing a structural transition driven by environmental mandates and energy efficiency standards. Designers face challenges associated with phasing down traditional Hydrofluorocarbons (HFCs) in favor of low-GWP alternatives, such as Hydrofluoroolefins (HFOs) like R1234yf and natural refrigerants including Isobutane (R600a), Propane (R290), and Carbon Dioxide (R744). These refrigerants require modified condenser architectures due to differences in operating pressures and thermal characteristics.
Traditional copper-tube aluminum-fin (RTPF) designs are increasingly being complemented or replaced by Microchannel Heat Exchangers in commercial and residential split systems. Microchannel technology utilizes flat multi-port aluminum tubes to achieve high heat transfer rates with a lower refrigerant charge. This configuration reduces air-side pressure drop and minimizes overall raw material usage, lowering system costs and reducing environmental footprint.
In coastal environments and aggressive industrial settings, traditional heat exchangers are susceptible to galvanic corrosion. To mitigate this risk, suppliers utilize high-purity alloy compositions, epoxy coatings, and advanced cathodic protection. Taojun's heat condensers feature localized anti-corrosion treatments, offering durability in challenging operating environments.
Modern commercial cooling demands custom solutions tailored to specific operating profiles. Taojun provides integrated sub-assemblies that simplify on-site installation and improve reliability:
| Material Profile | Operating Pressure Range | Primary Application Areas | Anti-Corrosion Rating |
|---|---|---|---|
| Low-Carbon Bundy Steel | Up to 4.5 MPa | Household Refrigeration, Small Commercial Freezers | ASTM B117 Salt Spray > 96 hrs |
| High-Purity Copper Alloy | Up to 6.0 MPa | Commercial HVAC, Multi-Split Heat Pumps, Cold Chain | ASTM B117 Salt Spray > 150 hrs |
| Microchannel Aluminum | Up to 8.5 MPa (R744 compatible) | Automotive AC, Precision Chiller Units, Data Centers | ASTM B117 Salt Spray > 240 hrs |
Key manufacturing systems are imported from Germany and Japan, ensuring repeatable bending, fin stamping, and expansion tolerances to maintain dimensional control.
Our engineering division partners with Zhejiang University, employing 15 engineers specialized in fluid dynamics and thermodynamics to develop custom thermal solutions.
Operating under ISO 9001:2015 and IATF 16949 quality guidelines, we provide design-to-prototype validation, structural simulation, and mass-production capacity.
Every condenser circuit is tested using high-pressure helium mass spectrometry, detecting leaks down to 1x10⁻⁸ mbar·l/s to reduce field failure rates.
Our manufacturing execution system (MES) tracks raw materials from arrival to final packaging, maintaining traceability across our production runs.
All finished products are RoHS and REACH compliant, supporting your sustainability initiatives and meeting international market entry requirements.
B2B buyers, supply chain directors, and HVAC systems engineers require reliable suppliers capable of navigating logistics, regulatory environments, and custom product configurations. Procurement organizations focus on minimizing Total Cost of Ownership (TCO) while ensuring product quality and supply continuity.
Supply chain reliability is critical for production lines. Taojun utilizes diversified material sourcing contracts for high-grade copper and aluminum. This approach helps stabilize raw material pricing and mitigates resource constraints, supporting consistent delivery schedules for large-scale production demands.
From initial design files to volume manufacturing, our development process is structured to support client specifications:
We offer technical assistance throughout the product lifecycle. Our service includes installation support, troubleshooting guidance, and a one-year warranty program on our catalog items. We maintain active communication with clients to gather performance feedback and implement continuous product improvements.
Our long-term R&D strategy centers on energy efficiency, resource conservation, and manufacturing automation. By focusing on material reduction and high-performance geometries, we aim to help our partners meet carbon neutrality objectives.
We are investigating micro-grooved inner surfaces for copper tubing to enhance heat transfer coefficients without increasing system size. This approach helps reduce the required refrigerant charge while maintaining cooling capacity.
To reduce assembly line costs for appliance manufacturers, we are expanding our modular product options. These pre-packaged configurations combine the condenser, receiver tank, filter drier, and capillary assembly into a single sub-system, reducing on-site brazing requirements and testing cycles.
We are reducing energy consumption within our manufacturing facilities through energy-efficient machinery, heat recovery systems, and recyclable packaging options, aligning with global environmental standards.
We utilize high-purity copper tubing, low-carbon Bundy steel, and specialized aluminum foils. Crucial materials, including specialized spacer films and adhesives, are sourced from quality international suppliers to maintain consistent material properties and durability.
We utilize a multi-stage testing process. Circuits undergo high-pressure dry nitrogen testing, followed by helium mass spectrometer leak detection. This protocol helps verify sealing integrity and reduces the potential for refrigerant leaks during operation.
Yes. We provide complete OEM/ODM services, including technical evaluation, prototyping, and validation testing based on client drawings or performance requirements.
Our manufacturing facilities are ISO 9001:2015 and IATF 16949 certified. Our product lines comply with EU RoHS environmental standards and carry UL certification for target markets.
Typical lead times range from 3 to 4 weeks, depending on design complexity and volume requirements. We also offer expedited shipping options for strategic partners to support urgent demands.
Our filter driers utilize a 3A molecular sieve core with an active water absorption capacity of ≥20%, helping protect compressors from moisture-related corrosion and acid formation.
Taojun
