Explore our core engineered line of refrigeration accessories, fan motors, brackets, and filtration systems direct from the manufacturer.
Established in 1988, Ningbo Taojun Refrigeration Equipment Co., Ltd. (originally founded as the Xiangshan Refrigeration Accessories Factory of Zhejiang University) has emerged as an authoritative powerhouse in the design, engineering, and manufacturing of critical refrigeration components. For over 35 years, our technical progress has been defined by integration with high-level academic research, establishing our credentials as a national high-tech enterprise.
As a global leader in cooling technologies, Taojun provides high-performance components including electric fan motors, copper filter driers, check valves, AC valves, condensers, brass and copper fittings, and integrated HVAC accessory systems. Our signature "Lingshan" brand is recognized in domestic and international cooling supply chains for structural reliability, system longevity, and environmental compliance.
Our infrastructure, based in Xiangshan, Ningbo, is certified to rigorous international criteria, including ISO 9001:2015, EU RoHS, and US UL. Through custom OEM and ODM programs, we support the manufacturing pipelines of major domestic and multinational HVAC/R brands, including Haier, Midea, Gree, Xinfei, Whirlpool, Electrolux, and Huarui.
In the highly competitive commercial and domestic refrigeration industries, procurement officers face systemic supply chain challenges.
Strict energy efficiency directives (such as the EU Ecodesign Directive and US DOE standards) require fan motors and compressor systems to operate with minimal power consumption. Taojun's cooling fan motors are built to maximize thermal dissipation efficiency while consuming less electrical power.
Moisture ingress and acid formation are the leading causes of compressor failure. Our high-purity copper filter driers, packed with 3A molecular sieves, offer water absorption capacities ≥20%, preserving refrigeration cycle integrity and preventing costly product recalls.
International environmental regulations ban hazardous substances in home appliances. Taojun maintains certifications for European RoHS, REACH, and WEEE, ensuring that all brass, copper, and polymer materials are eco-compliant and hazard-free.
Engineered precision that fuels global cold chains and HVAC operations.
Refrigeration systems operate under demanding mechanical, thermal, and chemical stress. An isolated component failure can compromise an entire system, leading to food spoilage, operational downtime, or equipment replacement. Taojun addresses these challenges by offering end-to-end hardware solutions.
Our product architectures are developed via a structured design methodology. Utilizing high-fidelity computer-aided engineering (CAE) and thermodynamic simulation packages, our engineers calculate fluid dynamics and pressure drop profiles inside our copper accumulators and filter driers. This optimization minimizes throttling losses and helps maintain system coefficient of performance (COP).
For specialized commercial applications, our R&D center conducts collaborative design cycles. Leveraging our relationship with the University of Science and Technology of China (USTC) and Zhejiang University, we utilize specialized laboratory equipment to prototype, stress-test, and refine custom structural geometries.
Our commitment to transparent, verifiable engineering data ensures that our components satisfy technical requirements across all HVAC/R applications.
| Component Group | Core Technical Metric | Material / Structural Standards | Testing & Verification Methods |
|---|---|---|---|
| Electric Fan Motors | Thermal insulation Class B/F, IP44/IP54 rating | Silicon steel stator, high-grade copper windings | 100% dynamic balance test, locked-rotor protection verification |
| Copper Filter Driers | Water absorption capacity ≥20% (at 25°C) | High-purity copper (TP2), 3A molecular sieve core | Helium leak testing (1x10⁻⁶ mbar·l/s), high-pressure burst test |
| Defrost Timers & Thermostats | Lifespan ≥100,000 electrical cycles | Flame-retardant polymer housing, silver alloy contacts | Thermal chamber cycle testing (-40°C to +85°C) |
| Brass & Copper Fittings | Tolerance precision up to ±0.02mm | C3604 brass, TP2 copper tubing | Coordinate Measuring Machine (CMM) dimensional analysis |
Innovation is not a static milestone, but an active trajectory. Our ongoing developmental efforts prepare our manufacturing capabilities for the next generation of HVAC/R technologies.
The global phase-out of HFCs dictates a shift toward natural refrigerants like Propane (R290) and Isobutane (R600a). Due to their flammability, system components must be intrinsically safe and hermetically sealed. Taojun is refining its welding techniques and structural seal designs to ensure compatibility with natural refrigerants.
Fixed-speed cooling systems are being replaced by variable-capacity configurations. We are developing smart, variable-speed fan motors that dynamically interface with inverter control PCB boards. These systems adjust airflow based on real-time sensor inputs, lowering energy consumption by up to 30%.
Quality control is supported by our Manufacturing Execution System (MES). The next phase of our production roadmap includes introducing automated optical inspection (AOI) utilizing CCD camera arrays. This will inspect brazed joints and machining tolerances in real-time, helping to eliminate cosmetic and structural deviations.
Taojun’s components are integrated into various industrial and commercial installations worldwide. From cold-chain logistics hubs in Western Europe to cooling units in tropical South America, our components are selected for their durability and performance under high ambient temperatures.
In domestic settings, our whisper-quiet electric fan motors and robust molecular sieve filter driers help extend the service life of household refrigerators and freezers. In commercial spaces, our heavy-duty brackets, industrial-grade filter cartridges, and high-capacity condensers are deployed in ice makers, supermarket display cases, and industrial cold-storage rooms.
This global presence is built on our customer service framework. Our team of 15 dedicated sales and application engineers provides continuous support. We assist procurement teams and system designers with mechanical drawings, fluid calculations, and physical prototyping to ensure smooth integration into their production processes.
Our commitment to reliability is backed by third-party certifications and a comprehensive quality management system.
Our facility operates in accordance with the GB/T19001-2016/ISO9001:2015 quality management framework (Registration No.: 41325Q00065R0S). This certification covers the entire scope of our engineering, manufacturing, and shipping operations for filter driers, condensers, and access valves. All certifications can be verified via the official Certification and Accreditation Administration of China (CNCA) portal.
Our quality control protocols extend throughout our production process. The raw materials we source must meet strict purity standards. For example, our copper tubing is verified for wall-thickness uniformity, and our desiccants undergo moisture absorption testing before batch loading.
Finished products undergo demanding stress tests to ensure reliable field performance:
ISO 9001:2015 Quality Management System Certification Documents
We provide comprehensive support throughout our business partnerships, from initial inquiry through commercial shipping and after-sales service.
We offer engineering solutions for custom requirements. Standard prototypes can be delivered quickly, helping our partners reduce system integration and testing cycles.
We provide complete technical documentation, including RoHS testing data, REACH declarations, UL compliance documents, and material test reports (MTR) for customs clearance.
Our sales engineering team is available to assist with technical inquiries. Standard service requests receive an initial response within 8 hours, and technical consultations can be arranged within 24 hours.
Review clear, expert answers to common questions regarding fan motors, refrigeration components, and our manufacturing services.
We manufacture a range of electric cooling fan motors, including shaded pole motors, permanent split capacitor (PSC) motors, and high-efficiency electronically commutated motors (ECMs). Our motors are designed for quiet operation, low vibration, and reliable performance in low-temperature refrigeration systems.
Our copper filter driers utilize a 3A molecular sieve core designed to selectively adsorb water molecules while leaving refrigerant molecules unaffected. Effective moisture removal prevents ice formation in the expansion valve and minimizes acid generation, protecting the compressor motor from winding degradation and corrosion.
Yes. All our products conform to international quality standards. We hold ISO 9001:2015 quality management system certification, and our core components comply with EU RoHS and REACH environmental directives. In addition, our key products hold UL safety certifications for the North American market.
Lead times vary depending on design complexity and order volume. For standard customized configurations, engineering prototypes are typically prepared within 7 to 10 working days. Commercial production runs are usually completed within 20 to 30 days of design sign-off and material verification.
Yes, we work with both large-scale appliance manufacturers and regional component distributors. We offer flexible order sizes, starting from 500 units for standard parts, to help our partners manage inventory and support aftermarket replacement programs.
Explore our range of heavy-duty, high-tolerance components engineered for commercial air conditioning and refrigeration systems.
Taojun