Cold wound spiral galvanized finned tubes are heat transfer tubes designed to increase external surface area by helically winding metal fins onto a base tube, then applying galvanization for corrosion protection.
They are widely used in heat exchangers, air coolers and industrial thermal systems where high heat transfer efficiency and long service life are required.
The cold wound spiral fin design provides tight and uniform fin attachment to the base tube. This structure ensures stable mechanical bonding and reliable performance during long-term operation under industrial working conditions.
The galvanized coating effectively protects the finned tube from corrosion caused by moisture, chemicals and outdoor exposure. This makes the tube suitable for harsh environments and significantly extends its service life.
By increasing the external surface area through spiral fins, the finned tube improves heat exchange efficiency compared with plain tubes. This design helps optimize thermal performance in heat exchangers and air cooling systems.
Cold wound spiral galvanized finned tubes are widely used in outdoor installations and industrial systems, such as air coolers, heat exchangers and processing equipment, where durability and heat transfer efficiency are required.
With robust construction and corrosion-resistant surface treatment, the finned tubes offer long service life and reduced maintenance frequency, helping lower operating costs for industrial users.
| Item | Specification |
|---|---|
| Tube Material | Stainless Steel (ASME ASTM A213, A312: 304L, 304, 316, 316L, 321); Carbon Steel (ASME ASTM A106, A179, A192); Alloy Steel; Aluminum; Copper |
| Fin Material | Carbon Steel; Alloy Steel; Aluminum; Copper |
| Bare Tube Outer Diameter | OD 15.85 mm – 168 mm |
Cold wound spiral galvanized finned tubes are widely used in heat exchangers to improve heat transfer efficiency. The spiral fin structure increases the external heat exchange area, making them suitable for industrial heat recovery and thermal processing systems.
In air coolers and air preheaters, galvanized finned tubes provide effective heat dissipation and stable performance. Their corrosion-resistant surface allows reliable operation in outdoor and high-humidity environments.
These finned tubes are commonly applied in petrochemical and chemical plants where equipment operates under demanding conditions. The galvanized coating and robust construction help ensure durability and long-term service life.
Cold wound spiral finned tubes are used in power generation systems such as boilers and auxiliary heat exchange equipment, contributing to efficient thermal transfer and improved energy utilization.
In HVAC and industrial cooling systems, spiral galvanized finned tubes support efficient heating and cooling performance. They are suitable for large-scale installations requiring stable heat transfer and low maintenance.
Cold wound spiral finned tubes are manufactured using high-quality metallic materials to meet different working conditions and application requirements.
Base tube materials include carbon steel, stainless steel and alloy steel, providing good mechanical strength and thermal conductivity.
Fin materials are available in carbon steel, alloy steel, aluminum and copper, allowing flexibility for different heat transfer and corrosion resistance needs.
The manufacturing process ensures stable fin attachment and reliable thermal performance.
Fins are spirally cold wound onto the bare tube to form a uniform and continuous fin structure.
Tight mechanical bonding between the fin and tube ensures structural stability during long-term operation.
Galvanizing treatment is applied to the finished tube surface to enhance corrosion resistance and extend service life.
Cold wound spiral galvanized finned tubes can be manufactured with customized dimensions and material combinations to meet different operating conditions and project requirements.
Production can be carried out according to customer drawings, specifications or technical requirements. Our manufacturing process supports both standard and non-standard designs for various industrial applications.
The product is suitable for bulk orders and long-term supply projects. Stable production capacity and consistent quality ensure reliable delivery for large-scale and continuous industrial demand.
A cold wound spiral galvanized finned tube is a heat transfer tube with fins mechanically wound onto a bare tube and then galvanized for corrosion protection, used to enhance heat exchange efficiency.
Base tubes can be made of carbon steel, stainless steel or alloy steel. Fin materials include carbon steel, alloy steel, aluminum and copper, depending on application requirements.
These finned tubes are mainly used in heat exchangers, air coolers, air preheaters, petrochemical plants, power generation equipment, HVAC and industrial cooling systems.
Yes. Customized dimensions, materials and technical specifications are available. Production can be carried out according to customer drawings or specific technical requirements.
Yes. Cold wound spiral galvanized finned tubes are suitable for bulk orders and long-term supply projects, with stable quality and reliable delivery capability.