Capacitor Series Manufacturers & Factories serving the Singapore market

Providing heavy-duty start/run motor capacitors, custom copper filtration assemblies, and high-performance HVAC components engineered to survive Singapore's humid climates and maximize energy efficiency standards.

Who We Are

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. The company's leading products include: filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, air conditioning cable ties and other refrigeration accessories series products.

After 30 years of hard work and rapid development, it has now become a comprehensive enterprise integrating the design and development, production and sales, and after-sales service of refrigeration accessories. In 2021, it became a national high-tech enterprise. Our company is committed to technological and process innovation, equipment improvement, and the introduction of advanced management concepts to produce first-class products.

Customer satisfaction is our unwavering pursuit. With reasonable design, reliable quality, and perfect after-sales service, the "Lingshan" filter has become a well-known brand in the domestic refrigeration industry. The company has successively passed ISO9001:2008 quality management system certification, EU ROHS environmental protection directive certification, and US UL certification. The company always takes customer needs as the basis and continuously innovates management concepts to ensure efficient and stable development.

Factory view 1 Factory view 2 Factory view 3 Factory view 4

In 2012, Ningbo Taojun Refrigeration Equipment Co., Ltd. was established, creating the brand "Taojun" condensers, "Taojun" stop valves and other series of products. Over the years, it has established partnerships with well-known domestic and foreign home appliance enterprises such as Haier, Xinfei, Midea, Gree, Whirlpool, Electrolux, and Huarui. The product sales network covers major and medium-sized cities in China and is exported to Europe, America, South America, Southeast Asia, the Middle East, Africa and other overseas markets. The company's goal is to support and cooperate with every sincere customer to achieve a win-win situation.

35+
Years R&D Excellence
0.05%
Defect Tolerance
500h
Endurance Testing
50+
Export Markets

What We Do

Taojun is specialized in refrigeration parts for 38 years. Our core range focuses on filter driers, access valves, and condensers. Feature: TAOJUN copper filter driers are designed to absorb moisture and acid, and to filter out impurities. They are normally installed as components and replaced as repair parts for both domestic and commercial refrigerators, freezers, and heavy HVAC networks.

Production 1 Production 2 Production 3 Production 4 Production 5
  • Optimized Molecular Sieve Technology: Utilizing 3A molecular sieves with water absorption capabilities exceeding 20% to prevent capillary freeze-up in high-ambient environments.
  • Argon Arc Sealing: Premium leak protection utilizing advanced inert gas welding processes to withstand continuous high operating pressures.
  • Anti-Corrosion Architecture: Extra-pure copper shells optimized for high rust protection in maritime areas like the Singapore Port and Jurong Island.

Deep Engineering & Feature Profiles

Structural Integrity

Shell: High purity copper pipe (rust resistant, high pressure resistant)
Inner Core: 3A molecular sieve (water absorption ≥20%) + activated carbon layer
Sealing process: Argon arc welding to ensure zero leakage under extreme load.

Core Strengths for Singapore’s Systems

Prolong Equipment Lifespan: Reduce moisture degradation and acidic accumulation on high-efficiency compressors.
Optimized Refrigerant Flow: Lower structural flow resistance to enhance operational cooling cycles.

Application Scenarios

✓ Domestic/commercial refrigerator updates
✓ Industrial cold chain and district chilling system optimizations
✓ Precision climate setups for maritime and server environments

Singapore’s Smart Energy Initiatives & Industrial Demands

A strategic overview of capacitor and HVAC component requirements under the Singapore Green Plan 2030 and tropical industrial operations.

01

Super Low Energy (SLE) & Green Mark

Under the Building and Construction Authority (BCA) guidelines, buildings in Singapore must minimize reactive power and optimize heat exchange. Our high-capacitance tolerance capacitor series stabilizes power factor metrics, while high-efficiency drier assemblies reduce compressor load.

02

Tropical Humidity Mitigation

With humidity average levels exceeding 80% year-round in Singapore, HVAC and compressor components face intense corrosive and thermal stress. Our copper components are treated with maritime protection to prevent early rust and minimize system leaks.

03

Data Center & District Cooling

Singapore holds one of the world's most concentrated server hub networks. Precise heat removal is paramount. Taojun’s components, including high-capacity liquid receivers and dry filters, support closed-loop fluid stability for uninterrupted thermal management.

Global Commercial & Industrial Context

As modern industries pivot towards natural refrigerants such as R290 (Propane) and R744 (Carbon Dioxide) to meet global global warming potential (GWP) limits, the design tolerances of structural parts have changed. System pressures in modern heat pumps and eco-friendly chillers can exceed traditional parameters by over 1.5x. Taojun’s R&D department, in partnership with structural experts from the University of Science and Technology of China, ensures that all capacitors, filters, and access valves maintain pressure safety limits exceeding 4.2MPa, aligning with EN 378 and UL safety benchmarks globally.

Why Partner with Ningbo Taojun

Leveraging high-end European materials, strict high-temperature endurance testing, and structural safety certifications.

01

Hi-Tech German Equipment

Our core manufacturing lines are imported directly from Germany to secure precise structural molding, maintaining sizing deviations below ±0.02mm.

02

Zhejiang University R&D Pedigree

Our research unit includes 15 engineers holding advanced doctorates and professorships, creating path-breaking thermodynamic solutions.

03

Flexible OEM & ODM Capabilities

Custom shapes, sizing, and connector options are tailored directly to clients' assembly configurations. We support low MOQ trials starting at 500 units.

04

Raw Material Selection

Our ITO film is imported directly from Japan for zero shrinkage, liquid crystal spacer uniformity, and adhesive polymers sourced from premium European suppliers.

05

Double Temperature Cycling Test

Thermal stability testing between 75°C and -35°C for over 500 hours, combined with high-humidity exposure, ensures total reliability in humid environments.

06

Comprehensive High-Voltage Testing

Finished capacitor assemblies and electrical systems are power tested under 100V high-voltage conditions to eliminate electrical failure risks.

Technology Roadmap & Future Outlook

Where HVAC and system filtration component technologies are moving in the next decade.

Decarbonization & Safe Fluid Management

The demand for energy-efficient building systems in tropical Southeast Asia requires next-generation capacitor and filtering components. Our ongoing roadmap focuses on developing smart monitoring capacitors that utilize real-time diagnostics to notify facility managers of capacitance drops before an HVAC compressor shuts down.

In tandem, our materials lab is building advanced desiccant matrices that filter micro-particulates without increasing refrigerant flow restriction, achieving a 12% improvement in overall energy consumption for district cooling systems.

Strategic Core Values

Honesty: Integrity-driven management. Quality-focused engineering that forms the base of our long-term client relations.

Innovation: Continuously modernizing our production methods, automation, and tooling structures.

Cooperation: Integrating resources globally to allow professional partners to fully execute their technical visions.

Industrial Production Capacity

Inside our ISO 9001-certified workshops, high-end laboratories, and precision assembly lines.

Workshop Facility

Modern Workshop

Production Line

Precision Assembly Line

Laboratory Testing

Advanced R&D Testing Lab

Your Trusted ISO 9001-Certified OEM/ODM Partner

Juntao Refrigeration (NINGBO TAOJUN REFRIGERATION EQUIPMENT CO.,LTD.) stands as a globally recognized leader in the design and production of critical refrigeration components. With our official GB/T19001-2016/ISO9001:2015 certification (Registration No.: 41325Q00065R0S), we demonstrate uncompromising commitment to quality in manufacturing filter driers, condensers, and access valves.

Main Certification Document

Main Certification Document

Scope of Certification

Detailed Scope of Certification

Certificate 3

UL Safety Standards Compliance

Certificate 4

EU RoHS Directive Certified

This certification, verifiable via China’s CNCA (www.cnca.gov.cn) and our partner Zhongci International (www.zcgirz.com), validates our advanced OEM and ODM capabilities for clients worldwide.

Expert Q&A: Capacitors & HVAC Filtration Solutions

Technical guidance regarding operation, material characteristics, and regional logistical operations for Singapore purchasers.

Q1: How do environmental factors in Singapore affect capacitor selection?
Singapore's high humidity and warm weather can cause corrosion and insulation degradation in standard capacitors. Our capacitor series utilizes hermetically sealed aluminum bodies combined with high-grade Japanese dielectric films, ensuring sustained capacitance stability under elevated ambient temperatures.
Q2: What is the optimal molecular sieve configuration for humid climate refrigeration?
We employ 3A molecular sieves within our filter driers, which selectively absorb water molecules while excluding refrigerants like R134a, R410A, or hydrocarbon R290. This ensures high water absorption capacity, preventing moisture from reacting with oil to form harmful acids.
Q3: How does Ningbo Taojun support the local Singapore supply chain?
We provide fast-track maritime routing from Ningbo Port directly to Singapore (typically 7-10 days transit) or air cargo for urgent repair demands (72-hour delivery). We handle complete commercial documentation, including Certificate of Origin and RoHS compliance reports.
Q4: Are your copper products compatible with variable refrigerant flow (VRF) and green HVAC systems?
Yes, our copper fittings and extrusion lines are built to withstand working pressures up to 4.5 MPa, making them fully compatible with modern eco-friendly refrigerants and variable displacement systems designed to meet BCA Green Mark standards.

Extended Product Portfolio for Singapore Systems

Explore our wider range of high-efficiency compressors, receiver tanks, capillary tubing, and universal outdoor mounting accessories.

Professional Service Excellence

Comprehensive technical support from pre-design consultation to lifelong system integration assistance.

1. Pre-sales Service

  • Technical Consultation: Directly consult with engineers holding 15+ years of pump and refrigeration experience.
  • OEM & Custom Sizing Design: Fast 3D CAD modeling to align product placement with space constraints.
  • 24/7 Response Window: Hotlines are monitored continuously, assuring feedback in under 8 hours.

2. After-sales Support

  • Installation & Debugging: Direct remote alignment troubleshooting with regional project managers.
  • Full 1-Year Warranty: Complete replacement warranty on core material defects, backed by lifetime tech support.
  • Constant Continuous Engagement: Periodic engineering audits to verify component condition and collect feedback.