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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Evaporator Copper Tubing

Evaporator Copper Tubing

-- Steady & Reliable Manufacturer --

Maximizing Thermal Exchange in Cooling Systems

Evaporator copper tubing is the cornerstone of modern refrigeration and air conditioning cycles. Its primary role is to facilitate the absorption of heat from the surrounding environment—be it air or liquid—by allowing the refrigerant inside to evaporate at low temperatures. At Zhejiang Jingliang, we specialize in producing high-performance evaporator tubes that prioritize thermal conductivity and surface area optimization. Our tubes are manufactured from high-purity C12200 phosphorus-deoxidized copper, reaching a thermal conductivity of approximately 390 W/(m·K). To push the boundaries of energy efficiency, we offer both smooth-bore and internally-grooved (inner-grooved) tubes. These inner-grooved variants feature microscopic fins that increase the internal surface area and create turbulence in the refrigerant flow, which significantly enhances the heat transfer coefficient and allows for more compact, energy-efficient evaporator designs.

The quality of an evaporator tube is defined by its "Internal Cleanliness" and "Mechanical Workability." Any residue, such as drawing oils or metal particles left inside the tube during manufacturing, can react with modern eco-friendly refrigerants and lead to compressor failure. Our evaporator tubes undergo a rigorous multi-stage cleaning process and are vacuum-annealed to ensure they are scale-free and bone-dry. In terms of workability, our tubes are provided in a "Soft Annealed" (O60) temper, allowing them to be bent into complex "hairpin" shapes or expanded into aluminum fins without cracking or losing their circular profile. As global energy standards become stricter, our evaporator tubing provides the technological foundation for OEMs to achieve higher SEER and EER ratings in residential, commercial, and industrial cooling applications.

Evaporator Engineering & Performance Specs

FeatureEvaporator Specification
Material GradeC12200 (Cu-DHP), C10200 (Oxygen-Free)
Thermal Conductivity391 W/(m·K) at 20°C
Inner GeometrySmooth or Inner-Grooved (Micro-fin)
Groove Depth0.10mm to 0.25mm (for IG tubes)
Internal Cleanliness< 0.020 g/m² residue (ASTM B280)
TemperO60 (Soft Annealed), O50 (Light Annealed)
Expanding Ratio> 40% (Expansion into fins)
Burst PressureTested per ASME B31.5 safety factors
Standard ComplianceEN 12735-1, ASTM B280, JIS H3300

Applications in Refrigeration and Air Treatment

Evaporator copper tubing is the primary component in Air Conditioning Evaporator Coils for residential split systems, window units, and central air. It is also found in the Cooling Plates of domestic refrigerators and freezers. In the commercial sector, it is used for walk-in coolers, display cases in supermarkets, and industrial ice machines. Beyond comfort cooling, these tubes are vital for Dehumidifiers, where they cool the air to remove moisture. In the automotive industry, they form the core of vehicle AC evaporators. Our tubes are also used in high-precision laboratory chillers and cryogenic cooling systems where temperature stability is critical. Because of their high purity, they are even suitable for specialized heat exchangers in the food and beverage industry where indirect cooling of liquids is required. Essentially, any system that seeks to lower the temperature of a medium through phase-change refrigeration relies on our precision-engineered evaporator tubing.

Advantages of High-Purity Evaporator Copper

The main advantage is "Energy Efficiency Optimization." Our inner-grooved technology allows manufacturers to reduce the size of their evaporator coils by up to 25% while maintaining the same cooling capacity, saving both space and material costs. "Zero Contamination Risk" is another major benefit; our ultra-clean manufacturing ensures that the system's expansion valves and filters remain unclogged over a 20-year lifespan. Our evaporator tubes also offer "Exceptional Ductility," which is crucial for the high-speed automated "hairpin" bending and fin-expansion processes used by major HVAC OEMs. This ductility prevents "thinning" at the bends, ensuring the pressure integrity of the coil. Additionally, the "Corrosion Resistance" of our C12200 grade protects the evaporator from the corrosive effects of condensation and atmospheric pollutants. Finally, copper’s "Natural Antimicrobial Properties" help prevent the growth of mold and slime on the wet surfaces of the evaporator, contributing to better indoor air quality (IAQ).

Global Logistics for HVAC Manufacturers

We primarily supply evaporator tubing in Level Wound Coils (LWC) to accommodate high-speed automated production lines. Each LWC can weigh between 100kg and 300kg and is wound precisely to prevent tangling. Payment terms are typically 30% T/T deposit and 70% against B/L or via L/C at sight. We use robust, moisture-proof packaging, including plastic film and reinforced pallets with heavy-duty corner protection to ensure the coils arrive in perfect condition. We ship from Ningbo or Shanghai ports, offering competitive lead times to major appliance manufacturing hubs in Southeast Asia, Europe, and the Americas. For large-scale OEMs, we provide "Just-In-Time" logistics support and can offer "Safety Stock" programs to ensure your production line never stops due to material shortages.

  • Q: What is the benefit of inner-grooved tubes over smooth tubes?
  • A: Inner-grooved tubes increase the heat transfer area and create turbulence, which improves heat exchange efficiency by 15-30%, allowing for smaller, more efficient coils.
  • Q: Can these tubes be used with R32 or R410A refrigerants?
  • A: Yes, our evaporator tubes are designed to withstand the high operating pressures of modern HFC and HFO refrigerants with a 4:1 safety factor.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China Evaporator Copper Tubing and Evaporator Copper Tubing Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

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