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Anping County Boli Hardware Wiremesh Products Factory, a trusted manufacturer since 1998, proudly presents our premium 316 Stainless Steel Spiral Punched Tube with a precise 1mm wall thickness, 15mm outer diameter, and 50% open area. Engineered for demanding industrial applications, this tube combines high corrosion resistance with excellent flow characteristics, making it ideal for filtration, liquid distribution, and heat exchange systems. Our decades of experience in wire mesh and perforated metal products ensure every tube meets rigorous quality standards, while our annual export value of US$5-10 million reflects our commitment to serving global markets.
The spiral punched design offers unique advantages over traditional perforated tubes. The continuous helical pattern of precisely punched holes ensures uniform open area distribution along the entire length, enhancing flow uniformity and reducing pressure drop. Manufactured from high-grade 316 stainless steel, this tube provides superior resistance to chlorides, acids, and harsh environments, extending service life in chemical processing, water treatment, and food & beverage applications.
Key Features & Specifications
- Material: 316 Stainless Steel (UNS S31600) – excellent corrosion resistance, especially in marine and chloride environments.
- Wall Thickness: 1mm – robust yet lightweight, suitable for moderate pressure applications.
- Outer Diameter: 15mm – compact size ideal for tight spaces in filtration cartridges or distribution manifolds.
- Open Area: 50% – balanced ratio of strength to flow, optimized for high throughput and minimal clogging.
- Surface Finish: Surface Polished – smooth, easy-to-clean exterior reduces fouling and meets sanitary standards.
- Spiral Punch Pattern: Continuous helical slots/holes – ensures uniform open area, high structural integrity, and reduced stress concentration.
- Length: Available in standard lengths (e.g., 1000mm, 2000mm) or custom cut to your specifications.
Technical Specifications
| Parameter | Value |
| Material | 316 Stainless Steel |
| Wall Thickness | 1.0 mm ±0.05 mm |
| Outer Diameter | 15.0 mm ±0.1 mm |
| Open Area Ratio | 50% ±2% |
| Punch Hole Diameter | 2.0 mm (typical, customizable) |
| Surface Roughness (Ra) | ≤0.8 μm (polished) |
| Max Working Temperature | 800°C (in oxidizing atmosphere) |
Why Choose Our Spiral Punched Tube?
- Enhanced Flow Uniformity: The spiral pattern ensures consistent open area along the tube, avoiding dead zones and improving efficiency in filtration and distribution systems.
- High Structural Strength: The continuous spiral coil provides excellent hoop strength, allowing the tube to withstand higher pressures compared to standard perforated tubes with straight slots.
- Easy Cleaning & Maintenance: Polished surface reduces adhesion of deposits and makes cleaning easier, reducing downtime in food, pharmaceutical, and chemical applications.
- Corrosion Resistance: 316 stainless steel offers superior resistance to pitting and crevice corrosion in chloride-rich environments, such as seawater desalination or chemical processing.
- Customizable Options: We can adjust hole size, pattern, length, and end fittings (threaded, flanged, or plain) to meet your specific requirements.
With over 25 years of manufacturing expertise, Anping County Boli Hardware Wiremesh Products Factory has supplied high-quality perforated metal products to customers across North America, South America, Europe, Asia, Africa, and Oceania. Our factory is equipped with advanced CNC punching machines and polishing lines, ensuring consistent quality and tight tolerances. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, with reliable logistics partners to ensure timely delivery worldwide.
We understand that every application has unique demands. Whether you need a standard tube for a prototype or a large-volume order for a production line, our team of engineers is ready to assist. We offer free samples for evaluation and provide technical drawings upon request. Contact us today to discuss your requirements and experience the Boli difference.
Frequently Asked Questions
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Q: What is the difference between spiral punched tube and standard perforated tube?
A: Spiral punched tube features a continuous helical pattern of holes, which provides better flow distribution, higher structural strength, and reduced stress concentration compared to linear rows of holes. It is ideal for applications requiring uniform flow and higher pressure resistance. -
Q: Can the open area ratio be customized to other values?
A: Yes, we can adjust the hole size, pitch, and pattern to achieve open areas from 20% to 70% depending on the tube diameter and wall thickness. Please contact our sales team with your specific requirements. -
Q: What is the maximum length available for this tube?
A: Standard lengths are up to 6000mm (6 meters). Longer lengths can be produced on request, subject to transportation limitations. We can also cut to exact lengths as needed. -
Q: Is the surface polished both inside and outside?
A: The standard surface polish is applied to the outer surface. Internal polishing is available upon request for applications requiring ultra-smooth inner surfaces, such as hygienic or pharmaceutical processes. -
Q: What kind of end connections can be provided?
A: We can offer plain ends, threaded ends (NPT, BSP), flanged ends, or custom fittings. Please specify your connection type when placing an order. -
Q: Do you provide samples for testing?
A: Yes, we offer free samples (shipping cost may apply) for qualified customers. Typically, sample length is 200mm. Contact us to request a sample. -
Q: How long is the lead time for a standard order?
A: For standard sizes and quantities (e.g., 100 pcs), lead time is approximately 15-20 working days after confirmation. Custom orders may require additional time depending on complexity. -
Q: What certifications do you have for quality control?
A: Our factory operates under strict internal quality control procedures. We ensure material certifications (mill test reports) are available upon request. While we do not advertise specific third-party certifications, we can arrange for inspections by recognized agencies at the buyer's cost.
With over 25 years of dedicated service, a strong export record, and a global customer base, Anping County Boli Hardware Wiremesh Products Factory is your reliable partner for high-quality stainless steel punched tubes. Our commitment to precision, durability, and customer satisfaction sets us apart. Don't settle for less – request a quote or sample today to see how our 316 stainless steel spiral punched tubes can improve your process efficiency and product quality.
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