Engineered to comply with EU safety standards, these items feature high structural durability, chemical resistance, and optimized thermal performance.
Slovakia has emerged as a cornerstone of Central European manufacturing, boasting the highest per-capita automotive production globally. Industrial hubs in Bratislava, Košice, Nitra, and Žilina host large-scale production facilities requiring robust building automation, process refrigeration, and high-performance HVAC systems. Consequently, components like Air Conditioning Contactors (also referred to as Definite Purpose Contactors) are under intense scrutiny regarding duty-cycle lifetimes, thermal dissipation, and electrical compliance.
Under the European Union's Ecodesign Directive and ambitious decarbonization targets, commercial buildings and factories across Slovakia are retrofitting old cooling plants and transitioning to heat pumps. The Slovak residential heat pump market has grown rapidly, requiring magnetic contactors that can reliably handle high inductive loads, withstand continuous cycles, and fit into compact DIN-rail electrical cabinets. For procurement specialists at local OEMs, sourcing contactors with high-grade copper coils and premium silver alloy contact tips is crucial to preventing premature failure from contact welding.
Ningbo Taojun Refrigeration Equipment Co., Ltd. — 35+ Years of Technological Prowess & High-Precision Quality Control
Ningbo Taojun Refrigeration Equipment Co., Ltd. is located in Xiangshan, Ningbo, a beautiful tourist city. Founded in 1988, its predecessor was the 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.
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.
Providing reliable control and filtration units for industrial and domestic thermal management systems.
Taojun has specialized in refrigeration parts for over 38 years. Our filter driers, access valves, and condensers are engineered to strict specifications. Feature: TAOJUN copper filter driers are designed to absorb moisture and acid, and to filter out impurities. Normally installed as a component and replaced as a repair part for both domestic and commercial refrigerators and freezers.
Industrial-grade precision, advanced manufacturing equipment, and strict ISO and UL control frameworks.
Our core manufacturing equipment is imported directly from Germany, ensuring precise tolerances for mechanical valves and electric contactor terminals.
We have 15 engineers in our R&D center, all of whom are doctors or professors from the prestigious University of Science and Technology of China (USTC).
Customized sizes, electrical ratings, coil voltages, and mounting shapes are available. Share your schematic layout with us to develop customized controls.
Our ITO film (no shrinkage, no color difference) and liquid crystal spacers are imported directly from Japan; glue is imported from Europe. Temperature range: 70°C; protective film resists 80-90°C.
High & low temperature tests at 75°C and -35°C for 500 hours; thermal shock tests from 10°C-90°C for 30 minutes; damp heat tests for 500 hours; smart films under sheet are powered by 24-hour aging tests; rolls are tested with 100V high voltage.
Our equipment yields ±0.02mm tolerance levels for copper and aluminum component stampings, ensuring consistent electrical contact spacing to prevent arcing.
TAOJUN was established in 1988 and has been producing high-quality refrigeration accessories and copper components for 41 years. We have domestic-leading research and development capabilities in refrigeration parts, as well as industry-advanced quality control systems. Technology remains the core of Taojun's competitive edge.
TAOJUN copper filter driers are designed to absorb moisture and acid and to filter out impurities. Normally installed as a component and replaced as a repair part for both domestic and commercial refrigerators and freezers.
✓ 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 no leakage
✓ Prolongs system life: reduces moisture and acid damage to the compressor
✓ Fast cooling: reduces system resistance and improves refrigerant cycle efficiency
✓ Widely compatible: suitable for household refrigerators, commercial cold storage, and automotive AC systems
Decades of steady growth and engineering innovation.
Establishment and localization of our first primary factory building, setting the foundation for specialized component manufacturing.
Implemented the MES intelligent workshop management system, transitioning production workflows to digital, lean operations.
Expanded overseas distribution networks, securing major contract wins in European regions, including Slovakia, Hungary, and Poland.
A global brand built on integrity, innovation, and strategic collaboration.
A global brand is supported by a corporate culture. We fully understand that our corporate culture can only be formed through Impact, Infiltration, and Integration. The development of our group has been supported by our core values over the past years: Honesty, Innovation, Responsibility, and Cooperation.
Our group always adheres to a people-oriented, high-integrity management approach, prioritizing quality and premium reputation. Honesty is the true source of our competitive edge.
Innovation is the essence of our group culture. Innovation leads to development, which leads to increased strength. Our people innovate in concept, mechanism, technology, and management.
Our group maintains a strong sense of responsibility and mission for our clients and society. This responsibility is the driving force behind our continuous quality improvements.
Working together to create a win-win situation is a key corporate goal. By executing integrity-based cooperation, we integrate resources and complement each other's technical specialties.
Providing reliable performance in critical heating, cooling, and industrial air handling projects.
Expert technical support, lifetime product evaluations, and certified manufacturing compliance.
1. Pre-sales Service:
- Inquiry and consulting support based on 15 years of pump and valve technical experience.
- Direct access to sales engineers for technical project matching.
- 24-hour service hot-line with an 8-hour response guarantee.
2. After-sales Service:
- Technical training and equipment evaluation for engineering teams.
- Troubleshooting support for installation and debugging.
- One-year warranty and free lifetime technical assistance.
We are 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 maintain quality control across our entire production catalog, including filter driers, condensers, and access valves.
Main Certification Document
Detailed Scope of Certification
Tour our workshops, advanced product lines, and certified quality laboratories.
Fully integrated machinery spaces featuring automated tooling and assembly stations.
High-capacity assembly configurations running MES monitoring for traceability.
Equipped with high/low temperature chambers, helium leak testers, and life-cycle test rigs.
Engineered to comply with EU safety standards, these items feature high structural durability, chemical resistance, and optimized thermal performance.
Original high-grade line materials for commercial HVAC installation and repairs.
High-quality copper refrigeration filter drier catalog and customized parts.
Get authoritative insights on procuring and maintaining HVAC contactors for European markets.
For Slovak and broader EU markets, AC contactors must bear the CE mark, proving compliance with Low Voltage Directive (LVD) 2014/35/EU and electromagnetic compatibility directives. Our products also meet UL standards and RoHS environmental guidelines to ensure smooth customs clearance and regulatory compliance.
Heat pumps cycle frequently to maintain precise climate control, causing electrical arcing during switching. Utilizing contact points with high silver content (such as Silver Cadmium Oxide or Silver Tin Oxide) ensures low electrical resistance, excellent thermal conductivity, and high resistance to contact welding under inductive startup loads.
We maintain an ISO 9001 certified manufacturing facility. We implement full-process CCD visual inspections, automated helium leak testing, and thermal shock aging tests (between 10°C and 90°C). This allows us to keep our batch defect rate below 0.05%.
Yes. Through our R&D center, we collaborate with clients to customize mounting brackets, DIN-rail arrangements, terminal configurations (screw terminals vs. quick-connect lugs), and coil designs to match specific voltage tolerances.
Sea freight from Ningbo Port to European ports (such as Hamburg, Koper, or Rotterdam) followed by rail or truck transport to Slovakia typically takes 35 to 45 days. For urgent engineering requirements, we offer expedited air freight services.
Partner with an ISO 9001:2015 certified manufacturer to secure reliable components and stable lead times for your HVAC projects in Slovakia and across Central Europe.
Taojun