Continuous Spiral Crimped Fin Tube
As a leading manufacturer in the heat exchange industry, Datang Fin Tube specializes in producing high-quality continuous spiral crimped fin tubes. This specific type of finned tube is engineered by wrapping a continuous metal strip around the base tube, creating a “crimped” or ruffled base that significantly increases the surface area for superior thermal performance.
- Base Tube OD: Usually ranges from 12.7mm to 50.8mm.
- Fin Height: Typically 5mm to 15mm depending on the tube diameter.
- Fin Pitch: The number of fins per inch (FPI), commonly between 3 and 11 FPI.
- Materials: Tubes: Carbon steel, stainless steel, copper, or alloys.
- Fins: Often aluminum or copper for high conductivity, or stainless steel for corrosion resistance.
Continuous Spiral Crimped Fin Tube Suppliers in China
A Continuous Spiral Crimped Fin Tube is a high-performance heat exchange element designed for maximum thermal efficiency and durability in demanding industrial applications. As a specialized type of crimped fin tube, it features a unique design where a metal strip is continuously wound in a spiral around a base tube, with its edges crimped to create a robust and highly effective heat transfer surface. At Datang Fin Tube, we engineer these tubes to deliver superior performance in heat recovery systems, air coolers, and various process heating and cooling applications.
1. Manufacturing Process
The production involves a cold-forming process. A continuous metal strip (the fin) is passed through a series of rollers that “crimp” one edge. This crimped edge is then under tension as it is spirally wrapped around the outer diameter of the base tube.
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Attachment: The fins are typically secured to the tube ends via welding or brazing to prevent unravelling.
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Mechanical Bond: The tension of the winding creates a strong mechanical contact between the fin and the tube, which is critical for heat conduction.
2. Technical Specifications & Customization
At Datang Finned Tube, we understand that every application is unique. Therefore, our continuous spiral crimped fin tubes can be customized to meet precise engineering requirements.
| Parameter | Specification Range |
| Base Tube Diameter | 12.7mm – 50.8mm |
| Fin Height | 6mm – 25mm |
| Fin Thickness | 0.2mm – 0.5mm |
| Fin Pitch | 2.5mm – 20mm (Customizable) |
| Manufacturing Process | Continuous Spiral Crimping / Tension Wound |
| Brand | Datang Fin Tube |
3. Comparison with Other Fin Types
| Feature | Crimped Spiral | G-Type (Embedded) | L-Foot Fin |
| Bond Type | Mechanical Tension | Mechanical Groove | Wrapped “L” Shape |
| Heat Limit | Up to 250°C | Up to 400°C | Up to 130°C |
| Efficiency | Medium-High | High | Medium |
| Main Use | General HVAC/Steam | High Temp/High Stress | Low Temp Air Cooling |
4.Advantages of Continuous Spiral Crimped Fins
- Increased Surface Area: The crimping/folding of the fin material provides more actual surface area for heat exchange compared to a standard plain spiral fin of the same height.
- Enhanced Turbulence: The wavy pattern of the crimped fin disrupts the airflow across the tube. This creates turbulence, which breaks the thermal boundary layer and improves the heat transfer coefficient.
- Durability: The crimped base provides a wider “foot” for the fin to sit on the tube, making it more resistant to mechanical vibration and thermal cycling.
- Cost-Effective: It is generally more affordable than laser-welded or extruded fin tubes while offering better performance than simple “tension-wrapped” flat fins.
- Material Versatility: Available in various combinations, including Carbon Steel, Stainless Steel, and Copper, to suit different corrosive environments.
- Customizable Geometry: Datang Fin Tube offers flexible fin pitch and height adjustments to meet your specific pressure drop and thermal requirements.
5.Continuous Spiral Crimped Fin Tube Common Applications
The versatility and efficiency of the crimped fin tube make it a cornerstone component in numerous industries.These tubes are workhorses in industrial environments where air needs to be heated or cooled using steam, oil, or water:
- Steam Air Heaters: Used in drying rooms for textiles, timber, or food processing.
- Waste Heat Recovery Systems: Capturing thermal energy from flue gases in boilers and industrial furnaces.
- Air Preheaters & Economizers: Improving the overall efficiency of power generation and heating systems.
- HVAC & Industrial Air Heating/Cooling: Used in unit heaters, air coolers and Large-scale heat recovery ventilators.
- Generator Coolers: Dissipating heat from large industrial motors.
- Petrochemical Industry: Cooling process fluids in environments where high-pressure resistance is less critical than cost-efficiency.
6.Why choose Datang Finned Tube?
At Datang Fin Tube, we combine 19+ years of manufacturing expertise with rigorous quality control. Each crimped fin tube undergoes a strict inspection process, including pull-out force tests and dimensional checks, ensuring that our clients receive products that exceed international standards (ASTM/ASME).
For a reliable and high-performance heat exchange solution, trust Datang Fin Tube. Contact our engineering team today to discuss how our continuous spiral crimped fin tubes can be tailored to optimize your specific application.
Top Features of Spiral Tension Wound Fin Tube
Datang offers the widest variety of sizes available for spiral tension wound fin tube in the industry.Its heat exchange efficiency can reach several times or even dozens of times that of ordinary heat exchangers.
1.Uniform pitch, small wrinkle, no dust accumulation
2.Small contact thermal resistance, strong heat transfer ability
3.Crimped Finned Tube can be further hot-dip galvanized to protect the surface, and the deposition of zinc also increases the efficiency of the finned tube. Maximum operating temperature 250°C.
4.Applications Commercial for air heating or air cooling up to 130°C to 150°C
Customizable Spiral Crimped Fin Tube
We can customize the material, specification and length according to your requirements.Solve your problems anytime and anywhere. Customize fin tubes and equipment according to your needs. Provide free technical guidance. Welcome to customize with drawings, so that you can purchase without worries.
Difference Between High Frequency Welded Fin Tubes and Crimped Fin Tubes
High frequency welded fin tubes: The manufacturing process is complex, high frequency welding equipment is required, and the cost is high, but the welding is firm and not easy to loosen.
Crimped fin tubes: The manufacturing process is relatively simple, the production cycle is short, and the cost is low, but it is easy to loosen and requires regular maintenance.
Helical Tension Wound Finned Tube Package
Payment Terms:T/T, LC
Delivery: 15-30 days after payment
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Iron frame packing boxes and the desiccants are put into each package for continental transportation as well. or as required
Continuous Spiral Crimped Fin Tube Quality Checks
Each of our spiral crimped fin tube is subjected to stringent quality checks.Inspection and Tests Performed:
1.Chemical Composition inspection。
2.Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test).
3.Surface and Dimension Test.
4.No-destructive Test.
5.Hydrostatic Test.
Continuous Spiral Crimped Fin Tube Application
Industrial Air Coolers (Fin-Fan Coolers) provide an eco-friendly cooling solution by using ambient air to cool process fluids. Unlike water-cooled systems, our air coolers eliminate the need for water treatment and cooling towers, making them the perfect choice for water-scarce regions or high-maintenance environments.
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Key Benefit: Low operational maintenance and no environmental water thermal pollution.
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Design: Optimized fin geometry for maximum heat rejection even in high ambient temperatures.
Maximize your plant’s fuel efficiency with Waste Heat Recovery Heat Exchangers. Our systems capture high-temperature thermal energy from boiler exhaust gases that would otherwise be lost. By integrating our WHR units, plants can reduce fuel consumption by up to 10-15% while significantly lowering carbon emissions.
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Key Benefit: Corrosion-resistant materials designed to handle acidic condensate in flue gases.
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ROI: Short payback period through immediate energy savings.
Datang offers robust Air Preheaters (APH) engineered for the demanding environments of modern power plants. By preheating the combustion air using heat recovered from flue gases, our APH units stabilize furnace combustion and improve overall boiler efficiency. We provide both tubular and plate-type designs tailored to your specific pressure and temperature requirements.
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Key Benefit: Minimizes thermal shock to the boiler and enhances the combustion of low-grade fuels.
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Durability: Modular design for easy maintenance and soot-blowing compatibility.
An Economizer is a critical component for any high-efficiency power station.Datang specializes in manufacturing H-finned and spiral finned tube economizers that preheat boiler feed water using residual heat from flue gases. This process reduces the energy required to reach boiling point, directly cutting down operational costs.
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Key Benefit: Precision-engineered to reduce “gas-side” pressure drop while maximizing heat absorption.
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Compliance: All units are manufactured to international pressure vessel standards (ASME/PED).
From warehouse climate control to high-temperature process heating, Datang‘s Industrial Air Heaters deliver reliable thermal performance. Compatible with various heating mediums—including hot water, thermal oil, and electricity—our heaters are built for heavy-duty 24/7 operation in harsh industrial environments.
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Key Benefit: Customizable configurations for airflow, mounting, and heat output.
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Versatility: Suitable for chemical plants, workshops, and large-scale agricultural facilities.
Datang provides high-performance Steam Air Heaters specifically designed for industrial drying processes. Utilizing advanced finned tube technology, our heaters maximize heat transfer from steam to air, ensuring rapid and uniform drying for industries like food processing, textiles, and timber.
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Key Benefit: Rugged carbon or stainless steel construction for long-term durability under high-pressure steam conditions.
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Application: Ideal for spray dryers, tray dryers, and tunnel kilns.
Related Product
Crimped Fin Tube FAQs
A: Crimped fin tube production line 8.
A: We can provide crimped fin tube samples for free.
A: After you confirm crimped fin tube sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
A: Spiral tension wound fin tube can be customized, we can make the new thermoforming or extruding mode based on your drawings and we can sign a confidentiality agreement about your patented product, pls contact us for any further information.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.