Pioneering precision refrigeration and vacuum components tailored for HVAC installation, commercial freezing, and industrial manufacturing lines.
Ningbo Taojun Refrigeration Equipment Co., Ltd. (branded globally as Juntao Refrigeration) is located in Xiangshan, Ningbo, a scenic coastal tourism city. Established in 1988, our rich history traces back to our predecessor, the Xiangshan Refrigeration Accessories Factory of Zhejiang University.
For over three decades, we have focused on producing world-class components: filter driers, check valves, air conditioning valves, condensers, brass and copper accessories, air conditioning cable ties, and specialized refrigeration accessory series. In 2021, our dedication to technology and process improvement earned us the status of a National High-Tech Enterprise.
Through ISO9001:2008 / ISO9001:2015 quality management certifications, EU RoHS directive compliance, and US UL certification, our signature "Lingshan" filter line has secured its position as an industry leader. We translate design precision into real-world efficiency, ensuring stable operations for millions of cooling systems globally.
Unlocking thermodynamic optimization through precision manufacturing and advanced gas evacuation techniques.
Moisture and non-condensable gases are the primary causes of premature compressor breakdown. Maintaining deep vacuum evacuation below 5 Pa ensures system moisture levels are reduced to parts per million (ppm), preventing the formation of highly corrosive hydrochloric and hydrofluoric acids.
Using premium 3A molecular sieves in our copper filter driers ensures targeted water absorption without capturing other active gas phase additives or natural refrigerants. This guarantees high-flow thermodynamic transfer with zero clogging issues.
Low pressure drops across split system service valves and condensers significantly decrease pump work requirements in the refrigeration cycle. This directly increases overall seasonal energy performance indexes (SEER/SCOP).
Underwritten by engineering experts from the University of Science and Technology of China.
Our core machining centers and copper forming tools are directly imported from Germany. We maintain dimensional control tolerances down to ±0.02mm for aluminum and copper assemblies, guaranteeing high hermetic integrity under heavy pressures.
Our dedicated engineering center is staffed by 15 specialists, including doctors and researchers from the University of Science and Technology of China. This guarantees that our product designs align with modern fluid mechanics and thermodynamics principles.
From highly specialized, shrinkage-free ITO films and liquid crystal spacers imported from Japan, to heavy-duty protective backing materials designed to survive temperatures up to 90°C, we source the highest grade industrial raw materials.
We run continuous high & low temperature testing at extremes of 75°C and -35°C for 500 hours, combined with rapid thermal shock cycling (10°C to 90°C) for 30 minutes to verify long-term fatigue limit.
Smart active film rolls undergo 100V high-voltage insulation tests. All copper filters and valve bodies are screened via MES integration using CCD visual checkers and high-sensitivity helium leak tests.
Ningbo Taojun Refrigeration has expanded its reach far beyond Zhejiang. We have established long-term strategic supplier relationships with world-class home appliance giants, including Haier, Midea, Whirlpool, Electrolux, Xinfei, and Huarui.
Our global supply network links distributors, system installers, and OEM assembly plants across major cities in China, Europe, North America, South America, Southeast Asia, the Middle East, and Africa.
Engineered to deliver exceptional performance across domestic, commercial, and industrial environments.
Ensures long-term performance and moisture absorption in household freezers and refrigerators using copper filter driers.
Optimizes fluid flow and limits acid formation in large cold storage facilities and supermarket display cases.
Compact, high-vibration resistant aluminum and copper filter driers designed for vehicles.
High capacity filters and solid core driers engineered to process significant refrigerant volumes without causing system downtime.
Over three decades of manufacturing evolution, from a specialized university workshop to an intelligent high-tech enterprise.
Established dedicated facilities to scale production output of copper filters and valves to meet rising domestic refrigeration demand.
Integrated the MES digital management platform, allowing real-time tracking, traceability, and batch control across our assembly lines.
Upgraded our systems with advanced automated testing stations, CCD vision alignment checkers, and environment-friendly production processes.
Fully certified systems designed to satisfy stringent international environmental and engineering standards.
Operating out of Zhejiang, China, we hold official GB/T19001-2016 / ISO9001:2015 registration (No. 41325Q00065R0S). This verification covers our full range of design, production, and testing processes for refrigeration system accessories, condenser parts, and liquid dryers.
You can verify our credentials online via the National Certification and Accreditation Administration of China (CNCA) portal (www.cnca.gov.cn) or our verification partner, Zhongci International (www.zcgirz.com).
ISO 9001 Quality System Certificate
Detailed Scope of Certification
Our technical engineers provide comprehensive support from design validation to global logistics.
Clear, technical answers to common queries regarding vacuum pumps and refrigeration components.
Industrial components engineered to withstand high vibration and harsh environmental conditions.
Taojun
