Founded in 1988, Ningbo Taojun Refrigeration Equipment Co., Ltd. trace our origins to the esteemed Xiangshan Refrigeration Accessories Factory of Zhejiang University. Situated in Xiangshan, Ningbo, our enterprise spans over three decades of engineering breakthroughs, establishing itself as a key manufacturing hub for global HVAC and industrial cooling systems.
In 2012, our brand expanded with the formal launch of "Taojun" Condensers and stop valve series, reinforcing partnerships with major home appliance giants including Haier, Midea, Gree, Whirlpool, Electrolux, and Xinfei. Rated as a national high-tech enterprise in 2021, Taojun is committed to advanced design, production, and lifetime technical support.
Our structural alignment allows us to design high-specification componentry such as copper filter driers, condensers, specialized HVAC valves, and Bundy tubes, meeting international quality benchmarks including ISO9001:2015, CE, UL, and RoHS.
1998: Commissioning of the Xiangshan Factory
2008: Deployment of MES Intelligent Workshop Management
2024: Advanced Heat Pump Condenser Innovation Center
Ningbo Taojun Main Manufacturing Complex Headquarters
As the global market transitions from gas heating to high-efficiency electrification, heat pump systems face stringent requirements. At Taojun, our R&D team, comprised of researchers collaborating with the University of Science and Technology of China (USTC), is steering the technology roadmap toward eco-compatible, high-pressure, and durable systems.
Developing microchannel and wire tube structures certified for next-generation natural refrigerants like R290 (propane) and CO2 (R744). Engineered with minimized internal volumes to align with global refrigerant charge limits.
Our designs employ specialized hydrophilic coatings, epoxy resins, and cataphoresis processes. Verified to resist severe marine and highly polluted industrial environments under C5-M standard guidelines.
Integrating argon arc welding and automatic brazing to guarantee burst pressures exceeding 12 to 15 MPa, critical for heat pump water heaters operating under heavy-duty winter sub-ambient conditions.
Thermal energy systems are central to modern infrastructure design. Taojun's heat pump condenser technologies address distinct macro-market applications:
Our condensers and filter driers are designed to optimize heat exchange coefficients in domestic heating systems. Leveraging precision Bundy tube technologies and double copper filter driers, our components help residential systems reach COP (Coefficient of Performance) ratings above 4.5, satisfying the strict requirements of EU EcoDesign regulations.
For commercial office buildings and large housing blocks, commercial heat pump evaporators and condensers demand high reliability. Taojun designs high-capacity multi-circuit condensers that handle heat loads from 50kW up to 500kW, preventing thermal fatigue during fluctuating seasonal demand cycles.
Integrating high-performance roll-bonded aluminum evaporators with molecular sieve filter driers preserves temperature integrity inside refrigerated cargo and grocery storage facilities, maximizing food safety while reducing energy consumption by up to 18%.
Operating a smart factory in Ningbo, Zhejiang, Taojun leverages industrial automation and lean manufacturing principles to secure our position as a reliable supplier in the global HVAC/R supply chain.
Our core machining and fin-forming machinery are imported from Germany, ensuring sub-micron precision for all condenser geometries and copper fittings.
Real-time manufacturing execution systems track raw materials from receipt to finished product testing, providing end-to-end traceablity for clients.
Automatic optical inspection detects structural micro-defects or dimensional variations down to ±0.02mm, ensuring high batch repeatability.
We execute advanced helium vacuum leak testing to isolate structural leaks, keeping our defect rate below 0.05%.
Smart Robotic Assembly Workshop
Automated Fin & Tube Expansion Line
Thermodynamic Performance Testing Lab
Exporting HVAC and refrigeration equipment to North America, Europe, and Asia requires strict adherence to regional environmental and safety rules. Taojun maintains compliance certificates to support global OEMs:
Our facilities are certified under GB/T19001-2016 / ISO9001:2015 rules (Registration Number: 41325Q00065R0S). This governs our end-to-end design, purchasing, manufacturing, and support loops, verifiable through the CNCA database.
Our products comply with the European Union RoHS and REACH environmental protection directives to limit hazardous substances. Critical pressure equipment elements also conform to US UL standards, helping products pass international market inspection.
Quality System Certificate
Certified Product Scope
UL Safety Certification
CE Certification Mark
RoHS Environmental Conformity
High-Tech Enterprise Designation
State-run Laboratory Alliance Award
We work with international sourcing teams to design custom components based on exact performance profiles. The table below lists standard operational parameters for OEM orders:
| Component Group | Material Specification | Maximum Working Pressure | Testing Methods Applied | Environmental Certifications |
|---|---|---|---|---|
| Heat Pump Condenser Coils | High Purity Copper, Al Foil (±0.02mm tolerance) | 4.5 MPa (R290/R32 compliant) | Helium Mass Spectrometer, Salt Spray (720h) | CE, RoHS, REACH |
| Copper Filter Driers | C1220T Seamless Copper (molecular sieve dry-mass ≥20%) | 4.2 MPa | Pressure Burst Testing, Thermal Cycling | UL, RoHS |
| Access & Charging Valves | H59 Brass, High-Tensile copper tube | 5.0 MPa | 100V high voltage leak test, aging test | UL, CE |
| Bundy Steel Tubes | Low-Carbon Double-Walled Steel Plate | 3.5 MPa | Eddy Current Crack detection, Inner cleanliness gas flush | RoHS, ISO9001 |
"Taojun stands by our commitment to customer satisfaction. We provide a one-year warranty on all products. If quality challenges occur, our 24-hour service hotline guarantees a response within 8 hours, backed by MES trackable manufacturing records to pinpoint issues."
Taojun