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Double Coil Copper Spiral Evaporator, 5/8 Inch OD, 0.5mm Thickness, Brazed Joint
Product Spotlights
Double coil copper spiral evaporator with 5/8 inch OD and 0.5mm thickness, featuring brazed joints for leak-proof performance. High thermal conductivity, compact design, and customizable dimensions. Ideal for distillation, concentration, and heat exchange in labs and industrial processes. Backed by 26 years of manufacturing expertise.
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Copper
outer_diameter:
5/8 inch (15.875 mm)
wall_thickness:
0.5 mm
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Copper
outer_diameter
5/8 inch (15.875 mm)
wall_thickness
0.5 mm
joint_type
Brazed
coil_type
Double Coil
shape
Spiral
application
Evaporation and Distillation
color
Copper Natural
feature
High Thermal Conductivity
Welcome to Anping County Boli Hardware Wiremesh Products Factory, a trusted manufacturer established in 1998 with an annual export value exceeding US$5 million. Our Double Coil Copper Spiral Evaporator (5/8 inch OD, 0.5mm thickness, brazed joint) is engineered to deliver exceptional heat transfer efficiency and durability for demanding evaporation, distillation, and concentration processes. With over two decades of metal fabrication expertise, we bring precision and reliability to every coil we produce.
This evaporator coil features a twin-spiral design that maximizes surface area while maintaining a compact footprint. The 5/8 inch outer diameter connects seamlessly with standard tubing fittings, and the 0.5mm wall thickness balances rapid thermal response with structural integrity. Each brazed joint is carefully crafted to ensure leak-free performance under thermal cycling. Whether you're in a laboratory pilot plant or an industrial-scale operation, this coil offers consistent, repeatable results.
Key Features & Technical Specifications
- Material: High-purity copper (C11000 or equivalent) for excellent thermal conductivity (approx. 401 W/m·K) and natural corrosion resistance.
- Design: Double coil spiral configuration — two independent coils wound in parallel, increasing effective heat transfer area by up to 40% compared to single-coil designs.
- Dimensions: Outer diameter 5/8 inch (15.875 mm); wall thickness 0.5 mm; total coil length and number of turns are customizable based on your application.
- Joints: All connections are brazed using silver-based filler metal, ensuring strong, leak-proof seals that withstand temperature fluctuations from -20°C to 250°C.
- Surface Finish: Smooth, clean interior and exterior surfaces to minimize fouling and facilitate easy cleaning.
- Adaptability: Compatible with standard compression fittings, flared connections, or soldered joints — installation options are flexible.
| Parameter | Value |
|---|---|
| Material | Copper (C11000) |
| Outer Diameter | 5/8 inch (15.875 mm) |
| Wall Thickness | 0.5 mm |
| Coil Configuration | Double Coil, Spiral |
| Joint Type | Brazed (Silver Solder) |
| Max Operating Temperature | 250°C (482°F) |
| Thermal Conductivity | ~401 W/m·K |
| Customization | Length, number of turns, inlet/outlet orientation |
Performance Advantages
- High Heat Transfer Efficiency: The double coil spiral design creates a turbulent flow path, reducing boundary layer resistance and improving overall heat transfer coefficient (U-value) by 20–30% compared to straight tube or single coil configurations.
- Compact Size: Despite its powerful performance, the spiral geometry packs a large surface area into a small volume — ideal for space-limited setups like benchtop distillation units or portable recovery systems.
- Corrosion Resistance: Copper naturally resists many chemicals, including water, alcohols, and mild acids. For aggressive media, optional surface treatments (e.g., tin plating) are available upon request.
- Easy Installation & Maintenance: The 5/8 inch OD matches common tubing sizes, and the brazed joints require no additional sealing. Cleaning can be done by flushing with appropriate solvents or using a soft brush.
- Customizable: We can adjust coil diameter, pitch, number of turns, and overall length to match your specific system requirements. Inlet/outlet positions can be modified for optimal routing.
Applications
- Laboratory Distillation: Perfect for rotary evaporators, short-path distillation, and solvent recovery systems.
- Chemical Processing: Used in evaporators, concentrators, and heat exchangers for liquid–liquid or vapor–liquid heat exchange.
- Pharmaceutical & Biotechnology: Suitable for gentle concentration of heat-sensitive compounds at low temperature.
- Food & Beverage: Applied in the production of essences, oils, and alcohol distillation.
- Environmental: Wastewater evaporation and recycling processes.
Why Choose Our Evaporator Coil?
As a manufacturer with 26 years of experience, we have supplied thousands of copper coils to clients across North America, Europe, Asia, Africa, and Oceania. Our factory in Hengshui, Hebei, China, is equipped with advanced brazing and bending machinery, ensuring consistent quality from prototype to mass production. Every coil undergoes a thorough pressure test and visual inspection before shipment.
We export from Tianjin, Qingdao, and Shanghai ports, with annual export sales reaching US$5–10 million. Our team understands the logistics of international trade and can deliver samples within 7–15 days. Whether you need a single unit for R&D or a bulk order for production, we offer competitive pricing without compromising on quality.
Contact us today to discuss your custom requirements. Our engineers are ready to provide technical drawings and application support. Invest in a coil that delivers consistent performance, batch after batch.
Frequently Asked Questions
-
Q: Can this coil be used for condensation as well as evaporation?
A: Yes, the double coil spiral design works efficiently for both condensation and evaporation. The large surface area and high thermal conductivity make it suitable for heat exchange in either direction. -
Q: What is the maximum pressure rating?
A: While the exact pressure rating depends on the operating temperature and coil geometry, our standard 0.5mm wall copper coil can typically handle up to 10 bar (145 psi) at room temperature. For higher pressure applications, we can increase wall thickness or use alternative materials. Please consult our engineers for your specific conditions. -
Q: Are the brazed joints free of lead?
A: We use silver-based brazing filler metals that are lead-free, complying with RoHS requirements. If you require specific certifications, please inform us before ordering. -
Q: Can I get a sample before placing a bulk order?
A: Absolutely. We offer samples for evaluation. The sample cost is reasonable, and we will deduct it from your first bulk order. Shipping is available via DHL, FedEx, or sea freight. -
Q: How do I clean the coil if it gets fouled?
A: For most organic residues, flushing with warm water and mild detergent is sufficient. For stubborn deposits, you can use a dilute acid solution (e.g., 5% citric acid) followed by thorough rinsing. Avoid using abrasive tools that may scratch the inner surface. -
Q: Is the coil suitable for food-grade applications?
A: Copper is a natural antimicrobial material and is commonly used in food processing. However, for direct contact with food, we recommend verifying local regulations. We can also provide a tin-plated surface finish upon request to meet strict food safety standards. -
Q: What is the typical lead time for custom coils?
A: Standard sizes are often in stock and can ship within 7 days. For custom dimensions, the lead time is typically 15–20 working days, depending on complexity and quantity. -
Q: Do you offer technical support for installation?
A: Yes, we provide installation guidelines and can arrange online technical support. Our team can also assist with system integration advice based on your process parameters.
Send Inquiry to This Supplier
Mr. Geng Xiaozhong
Sales Manager
2Yrs
Hengshui, Hebei, China
2Yrs
Business Type
Manufacturer
Year Established
1998
Annual Export Value
US$5 Million - US$10 Million
Product Certifications
Others
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