Direct supply of precision copper-based alloys configured for standard-setting industrial implementations in Sweden and Northern Europe.
Sweden stands at the forefront of the global ecological shift. Major Swedish enterprises (e.g., NIBE, Alfa Laval, and system integrators across Stockholm, Gothenburg, and Malmö) are driving rapid innovation in green heat pumps, advanced district heating, and clean energy systems. High-quality copper brazing alloys are crucial to these industries, providing high joint strength, corrosion resistance, and superb thermal conductivity.
Furthermore, under strict European F-Gas regulations, heating and cooling loops are shifting to natural refrigerants such as Propane (R290) and Carbon Dioxide (R744). These refrigerants operate under extremely high pressures, making leak-proof, highly robust brazed connections essential. Our phosphor-copper alloys, manufactured to strict EU standards, deliver the precision capillary action and structural integrity required for these critical components.
By blending metallurgical expertise with localized regulatory alignment (specifically EN ISO 17672 standards), we provide Swedish engineers and procurement managers with reliable products designed to handle thermal expansion and heavy cycle loads.
Founded in 1988, Ningbo Taojun Refrigeration Equipment Co., Ltd. originated as the Xiangshan Refrigeration Accessories Factory of Zhejiang University. Over more than 35 years of engineering growth, we have evolved into a national high-tech enterprise integrating refrigeration design, custom metallurgy development, product testing, and global sales.
Our comprehensive production facility excels in manufacturing high-precision filter driers, check valves, condenser systems, copper accessories, and copper brazing materials. We work closely with leading brands such as Haier, Midea, Whirlpool, Electrolux, and Gree, exporting our products to more than 50 countries, including high-demand markets across Northern and Western Europe.
With an unwavering focus on technological innovation, we continuously invest in advanced production machinery and strict quality control processes. This commitment ensures our customers receive components and materials that perform reliably under the most challenging operating conditions.
Why Swedish industrial partners choose Taojun as their primary manufacturing and design supplier.
Supported by 15 senior research engineers with doctorates and professorships from the University of Science and Technology of China.
Certified to ISO 9001:2015 and IATF 16949. High and low temperature thermal shock testing for over 500 hours ensures absolute reliability.
Integrated MES systems and Helium leak testing provide a comprehensive view of critical production variables and quality metrics.
A reference table comparing properties and ideal applications to help you select the optimal alloy composition for your project.
| Alloy Class | Typical Composition | Solidus / Liquidus | Sweden Industrial Applications | Standards Compliance |
|---|---|---|---|---|
| Cu-P Eutectic (S-CuP6) | Cu: 92.7%, P: 7.3% | 710°C / 793°C | Standard domestic refrigeration, copper-to-copper pipe joints. | EN ISO 17672, RoHS |
| Cu-P-Ag (S-CuP7) | Cu: 86%, P: 6.4%, Ag: 2% | 645°C / 825°C | Recommended for heat pumps and air conditioners subject to vibration. | EN ISO 17672, REACH |
| High-Silver Phosphor Copper | Cu: 80%, P: 5%, Ag: 15% | 645°C / 800°C | Excellent ductility for joints subjected to extreme temperatures. | EN ISO 17672, RoHS |
| Al-Si Brazing Rods | Al: 88%, Si: 12% | 575°C / 585°C | Copper-to-aluminum transitions in automotive cooling loops. | EN ISO 17672, WEEE |
Decades of technical growth, high production capacity, and strict quality control.
Sourcing copper brazing materials from our ISO-certified manufacturing facility in Ningbo offers Swedish OEMs and purchasing agencies key supply chain advantages:
Receive direct consulting support from experienced sales engineers. Technical inquiries are reviewed and answered within 8 hours.
We stand by our products with a one-year warranty and lifetime engineering support, maintaining long-term partnerships with our clients.
Explore our wide selection of components, engineered for efficiency and compatibility in Swedish HVAC and refrigeration systems.
A look inside our advanced manufacturing workshops, testing labs, and processing lines.
Technical answers to common questions about alloy properties, compliance, and logistics in Sweden.
For HVAC systems and heat pumps subject to continuous mechanical vibration, we recommend our S-CuP7 (2% Silver-Phosphor-Copper) or S-CuP8 (5% Silver-Phosphor-Copper) alloys. The addition of silver significantly improves the alloy's ductility, helping the brazed joints withstand thermal stress and vibration during winter heating cycles.
Yes, all our copper brazing alloys, filter driers, and copper fittings comply with EU Directive 2011/65/EU (RoHS) and Regulation (EC) No 1907/2006 (REACH). We do not use cadmium in our standard formulations, ensuring safety and compliance for Swedish OEMs.
Yes, we offer comprehensive OEM and ODM support. We can produce custom brazing rings, preforms, and specific wire diameters to match your automated induction or furnace brazing processes, helping reduce assembly times on your production line.
When joining copper to brass, phosphorus-containing alloys can sometimes form brittle phases at the interface. To prevent this, we recommend using a silver-based alloy with a lower melting temperature (such as a 30% to 45% silver formulation) combined with an appropriate flux, which helps prevent over-heating and ensures a high-strength joint.
Standard custom production orders are completed within 15–20 days. Ocean freight from Ningbo Port to the Port of Gothenburg typically takes 30–35 days. For urgent requirements, air cargo delivery is available, reaching Stockholm Arlanda (ARN) within 5–7 days.
We maintain high consistency by sourcing high-purity copper and silver ingots, coupled with automated raw material mixing and real-time spectral analysis. Every production lot undergoes mechanical and metallurgical testing to verify melting range, capillary flow speed, and joint strength.
Taojun