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Welcome to Anping County Boli Hardware Wiremesh Products Factory – your trusted manufacturer of high-performance heat transfer components since 1998. With over two decades of expertise in metal fabrication and a dedicated export portfolio reaching US$5–10 million annually, we proudly introduce our TP304 Stainless Steel Spiral Finned Tube, specifically engineered for air cooling systems. This product combines the corrosion resistance of premium TP304 stainless steel with the efficient heat dissipation of a spiral fin design, making it an ideal choice for applications where reliability, longevity, and thermal performance are critical. Our factory in Hengshui, Hebei, utilizes advanced production lines to ensure consistent quality, and we ship to major ports like Tianjin, Qingdao, Shanghai, and Foshan, serving markets across North America, South America, Europe, Asia, Africa, and Oceania.
Key Features & Technical Specifications
Our spiral finned tubes are manufactured under strict quality control to meet the demanding requirements of air cooling systems. Below are the core features that set our product apart:
- Premium Material: Made from TP304 stainless steel, offering excellent resistance to oxidation, corrosion, and high temperatures (up to 870°C intermittent). This ensures long service life even in harsh environments.
- Efficient Spiral Fin Design: The continuous helical fin increases the heat transfer surface area by up to 10–15 times compared to bare tubes, significantly improving air cooling efficiency.
- Customizable Dimensions: Base tube diameter from 16mm to 25mm (or custom), fin height from 10mm to 20mm, fin pitch from 2.5mm to 5mm, and tube length up to 12 meters. We work with your specifications to optimize performance.
- Robust Construction: Fins are tightly wound and mechanically bonded to the base tube, ensuring high structural integrity and resistance to vibration and thermal stress.
- Versatile Applications: Suitable for air coolers, HVAC systems, dry coolers, radiators, and other air-side heat exchange equipment in industries such as power generation, petrochemical, food processing, and general manufacturing.
- Surface Finishing Options: Available in pickled, passivated, or oiled conditions to suit different installation and maintenance requirements.
Technical Parameters (Typical Values)
| Parameter | Value Range | Notes |
|---|---|---|
| Base Tube Material | TP304 Stainless Steel | Complies with ASTM A213/A269 |
| Fin Material | TP304 Stainless Steel (same as base) | Homogeneous for thermal expansion |
| Base Tube O.D. | 16mm, 19mm, 25mm (customizable) | Other sizes available upon request |
| Fin Height | 10mm – 20mm | Height affects air-side pressure drop |
| Fin Pitch | 2.5mm – 5.0mm | Tighter pitch = more surface area |
| Tube Length | Up to 12,000mm | Longer lengths available with special transport |
| Max Operating Temperature | ~870°C (intermittent) | Continuous use at lower temperatures recommended |
Advantages for Your Business
- Reduced Energy Costs: Efficient heat transfer means smaller fans or lower airflow requirements, cutting operational expenses.
- Longer Equipment Life: TP304 stainless steel resists corrosion from moisture, chemicals, and temperature fluctuations, minimizing maintenance and replacement.
- Customized Solutions: We work closely with your engineering team to tailor fin geometry, tube dimensions, and surface finish to match your specific air cooling system design.
- Consistent Quality: Our factory implements rigorous inspection procedures, including hydrostatic testing, dimensional checks, and visual inspection before shipment.
- Global Logistics: With multiple shipping ports and a flexible supply chain, we ensure timely delivery to any major market worldwide.
Since 1998, Anping County Boli Hardware Wiremesh Products Factory has been a reliable partner for heat exchanger manufacturers, power plant operators, and HVAC system integrators. Our annual export value of US$5–10 million reflects the trust our global customers place in our products. We have served clients in over 30 countries across North America, South America, Europe, Asia, Africa, and Oceania, consistently delivering components that meet or exceed expectations.
Why choose Boli? Our decades of experience, dedicated R&D team, and modern production facilities allow us to offer competitive pricing without compromising on quality. We are committed to continuous improvement and customer satisfaction. Whether you need a standard spiral fin tube or a custom design for a unique air cooling application, we are ready to assist.
Contact us today to discuss your requirements or request a quotation. Let our TP304 Stainless Steel Spiral Finned Tubes help you optimize your air cooling system performance and reduce total cost of ownership. We look forward to building a long-term partnership with you.
Frequently Asked Questions (FAQ)
Q1: What is the difference between TP304 and TP304L stainless steel for finned tubes?
Both offer similar corrosion resistance, but TP304L has lower carbon content, which reduces the risk of carbide precipitation during welding. Our standard TP304 is suitable for most air cooling applications; if welding is required, we can also supply TP304L upon request.
Q2: Can you provide finned tubes with different fin materials, such as aluminum or copper?
Yes, we offer customization. However, the product title specifies TP304 stainless steel for both tube and fin. For mixed materials, please contact us to discuss feasibility and lead time.
Q3: What is the typical lead time for a custom order of spiral finned tubes?
Lead time depends on quantity and complexity. Standard sizes (e.g., 19mm tube, 15mm fin height, 3mm pitch) usually ship within 2–3 weeks. Custom dimensions may require 3–5 weeks. We can expedite for urgent orders.
Q4: How do you ensure the fins are securely attached to the base tube?
We use a mechanical winding process with controlled tension, followed by a tight bonding step. This ensures zero gap between fin and tube, maximizing heat transfer and preventing loosening under thermal cycling. We also perform random pull tests as part of quality control.
Q5: Are these finned tubes suitable for use in outdoor air cooling systems exposed to rain and salt spray?
TP304 stainless steel offers good resistance to atmospheric corrosion, but for coastal or highly corrosive environments, we recommend 316L stainless steel as an upgrade. Please consult our technical team for specific recommendations.
Q6: Do you offer certificates of material compliance or mill test reports?
Yes, we can provide material test reports (MTRs) for the TP304 stainless steel used, as well as a certificate of conformity. Please specify your requirements when placing an order.
Q7: What is the minimum order quantity (MOQ) for spiral finned tubes?
Our standard MOQ is 100 meters total length, but we can accommodate smaller trial orders for new customers. Contact us for details.
Q8: How should I clean and maintain these finned tubes?
For air cooling systems, periodic cleaning of the fin surface with compressed air or low-pressure water is recommended to remove dust and debris. Avoid abrasive cleaning to protect the stainless steel surface. For oily deposits, use a mild detergent and rinse thoroughly.
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