Premium Grade Precision Copper Components Tailored for Commercial Heat Exchange Assemblies, Household Freezers, and Heavy-Duty HVAC Units inside the Israeli Tech & Cold-Chain Systems.
For over 38 years, we have served as a leading global manufacturer of premium-grade refrigeration components. Originating in 1988 as the Xiangshan Refrigeration Accessories Factory of Zhejiang University, our engineering legacy is deeply rooted in academic research and strict metallurgical discipline.
Today, as a national high-tech enterprise, Taojun operates a state-of-the-art facility specializing in custom copper capillary tubes, liquid filter driers, check valves, service accessories, and specialized condensers. We operate in compliance with rigorous international standards, including ISO 9001:2015, US UL, and European CE/RoHS directives.
To serve high-precision markets such as Israel, we leverage computerized manufacturing execution systems (MES), optical sorting, and automated helium leak detection to guarantee a product defect rate under 0.05%. Our global distribution supports top tier manufacturers like Haier, Midea, Whirlpool, Electrolux, and domestic smart-cooling enterprises throughout the EMEA region.
Israel's advanced industrial sector demands refrigeration and fluid control components that meet highly specific, strict standards. The region's hot climate, combined with its leadership in agricultural technology, micro-electronics cooling, medical lasers, and advanced water systems, creates a high demand for precision copper capillary solutions.
1. Agri-tech and Smart Climate Controls: Greenhouses in the Negev desert rely on localized cooling systems where capillary tubes regulate refrigerant flow, ensuring stable temperatures for delicate crops.
2. Military Avionics and Optoelectronics: Active thermal management in rugged environments requires precision micro-bore copper tubing with exact inner diameter tolerances to prevent system failures.
3. Medical Device Chillers: Medical equipment manufacturers in the Tel Aviv and Haifa districts require certified oxygen-clean copper capillary components to maintain strict sanitary levels in critical systems.
| Tube Characteristic | Standard Specification | Application Advantage |
|---|---|---|
| Inner Diameter (ID) Range | 0.5 mm to 2.5 mm | Precise control of refrigerant flow rate |
| Tolerance Precision | ± 0.02 mm | Consistent flow resistance across production lots |
| Material Standard | C12200 Deoxidized High Phosphorus | High weldability and thermal conductivity |
| Cleanliness Levels | < 0.02 g/m² internal residue | Prevents clogging in micro-expansion systems |
The global refrigeration industry is transitioning toward eco-friendly natural refrigerants (such as R290 Propane and R600a Isobutane). These low-GWP (Global Warming Potential) gases require smaller charge volumes and highly precise flow controls. Standard capillary tubes must evolve to handle higher working pressures and maintain internal cleanliness to prevent chemical interactions with synthetic lubricants.
A visual look into the Ningbo Taojun facility. Our manufacturing center is equipped with German-imported drawing machinery and automated laboratory assessment stations.
Building on over three decades of mechanical engineering, our technical processes prioritize stability, reliability, and certified compliance.
Our core micro-bore cold-drawing lines are imported from Germany, ensuring precise roundness tolerances within ±0.01 mm and uniform wall thickness across production batches.
Our team includes 15 engineers with graduate and doctoral degrees from leading research institutions, supporting custom metallurgy development and thermodynamic modeling.
From initial inspection of Japanese liquid crystal spacers to testing raw copper ingots and verifying capillary burst pressure, every production step is documented.
GB/T19001-2016 / ISO9001:2015 Certified
Verified OEM/ODM Manufacturing Scope
A full range of specialized HVAC accessories, copper fittings, charging lines, and robust filtration assemblies designed for modern industrial applications.
As cooling requirements demand higher energy efficiency, our engineering teams are developing key technologies for next-generation systems.
Traditional single-bore capillaries struggle with fast vapor expansion in modern variables. We are exploring multi-channel capillary systems, which offer superior heat exchange surface-to-volume ratios. These components will help OEM engineers reduce system charges by up to 25% while maintaining cooling performance.
Our copper processing integrates inline induction annealing under controlled atmospheres. This prevents oxidation and scaling on the internal bore, eliminating the risk of scale dislodgement and system failure in critical medical and industrial applications.
Insights on engineering standards, manufacturing processes, and localized industrial compliance guidelines.
Taojun