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Help Center304 Stainless Steel Spiral Punched Tube, 1.5mm Thickness, 50mm OD, 2mm Hole Diameter, 10mm Pitch
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As a manufacturer with over 25 years of experience, Anping County Boli Hardware Wiremesh Products Factory (established 1998) proudly presents our 304 Stainless Steel Spiral Punched Tube. This product combines precision engineering with durable material to deliver a reliable solution for various industrial filtration, separation, and structural applications. With a thickness of 1.5mm, an outer diameter of 50mm, a hole diameter of 2mm, and a pitch of 10mm, it offers an excellent balance of strength and flow efficiency. Our factory annually exports US$5–10 million worth of products to global markets, ensuring consistent quality and competitive pricing.
The spiral design enhances the tube's mechanical stability while maintaining a uniform perforation pattern. This allows for consistent fluid distribution and effective particle retention. The 304 stainless steel grade provides excellent corrosion resistance, making it suitable for use in water treatment, chemical processing, food and beverage, oil and gas, and many other industries. Below we detail the key features and technical specifications.
Key Features & Benefits
- High-Quality 304 Stainless Steel: Resists rust, oxidation, and chemical attack, ensuring a long service life even in harsh environments.
- Precise 2mm Hole Diameter: Each hole is accurately punched, providing consistent filtration performance and uniform flow distribution.
- 1.5mm Wall Thickness: Offers sturdy construction to withstand high pressure and mechanical stress, while still being formable for custom manufacturing.
- 10mm Pitch (Center-to-Center Distance): Optimizes open area for efficient liquid or gas passage without compromising structural integrity.
- Spiral Helical Shape: Enhances strength and rigidity, reduces the risk of deformation under load, and simplifies installation in certain types of equipment.
- Customizable Length: Available in standard lengths or cut to your specific requirements, reducing waste and installation time.
- Versatile Applications: Ideal for use in filter elements, shaker screens, catalyst supports, vent pipes, mist eliminators, and more.
- Manufactured with CNC Precision: Our modern punching and spiral forming equipment ensures tight tolerances and repeatable quality.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | 304 Stainless Steel (AISI 304) |
| Wall Thickness | 1.5 mm ±0.1 mm |
| Outer Diameter | 50 mm ±0.5 mm |
| Hole Diameter | 2 mm ±0.1 mm |
| Pitch (Center Distance) | 10 mm |
| Open Area Ratio | ~3.14% (based on hole pattern) |
| Standard Length | 1 m, 2 m, 3 m (customizable) |
| Surface Finish | Pickled & Passivated / Mill Finish (optional) |
| Max Working Temperature | Up to 450°C (in oxidizing atmosphere) |
The combination of 304 stainless steel and spiral punched design makes this tube an excellent choice for applications requiring high durability and consistent filtration. The 1.5mm thickness provides enough rigidity to withstand moderate pressure, while the 2mm holes ensure effective filtration of particles above 2mm. The 10mm pitch balances open area and structural strength, allowing for efficient fluid flow even in viscous media.
Our customers in North America, South America, Europe, Southeast Asia, Africa, and Oceania have used this product for water purification, oil strainers, catalyst bed supports, air intake filters, and agricultural spraying equipment. The spiral shape also facilitates easy cleaning and backwashing, reducing downtime in continuous processes.
Why Choose Anping Boli?
With over 25 years of manufacturing experience and an annual export value of US$5 million to US$10 million, we have established a solid reputation for quality and reliability. Our factory is located in the famous wire mesh capital – Hengshui, Hebei, China – and we ship from major ports: Tianjin, Qingdao, Shanghai, Foshan. We serve a wide range of markets, from domestic to over 15 international regions. We use advanced punching and spiral winding machines, ensuring each tube meets strict dimensional tolerances. Every batch is inspected for material composition, hole spacing, and surface finish.
We are committed to providing customizable solutions – whether you need different lengths, additional treatments (e.g., electropolishing, special end caps), or non-standard dimensions. Our engineering team works closely with you to deliver the exact product you need. Contact us today for a quote or to discuss your project requirements. We look forward to being your trusted partner in stainless steel perforated tubing.
Frequently Asked Questions (FAQ)
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Q: What is the maximum length you can produce for this spiral punched tube?
A: Our standard maximum length is 6 meters per piece. For longer continuous lengths, we can weld multiple sections; however, the spiral design is typically produced in segments up to 6m. Custom lengths are available upon request. -
Q: Can the tube be used for high-pressure applications?
A: The 1.5mm wall thickness provides good strength for moderate pressure applications. For high-pressure systems (above 10 bar), we recommend consulting our engineers to evaluate the exact operating conditions. The spiral structure adds extra rigidity compared to straight perforated tubes. -
Q: Is the 304 stainless steel food-grade?
A: Yes, 304 stainless steel is considered food-grade and is widely used in food and beverage processing. It meets general sanitary standards. If you require specific certifications (e.g., FDA, EU 1935/2004), please contact us for details. -
Q: What is the open area percentage of this tube?
A: Based on the hole diameter (2mm) and pitch (10mm in a square pattern), the approximate open area is about 3.14%. This can be varied by adjusting the hole pattern or pitch – we offer customization for different open area requirements. -
Q: How do you ensure the hole positions are accurate?
A: We use CNC-controlled punching machines that guarantee precise hole placement. The pitch tolerance is maintained within ±0.2mm, and the hole diameter tolerance is ±0.1mm. Each tube is inspected before shipment. -
Q: Can the tube be cut to a specific length with clean ends?
A: Yes, we can cut the tube to your required length with deburred ends. We also offer threaded ends, flanges, or welded end caps as optional finishing services. -
Q: What is the typical lead time for this product?
A: For standard sizes and quantities, lead time is usually 15–20 working days. Custom orders may take longer depending on complexity. We recommend submitting your inquiry early to schedule production. -
Q: What packaging do you use for export?
A: Tubes are packed in bundles wrapped with plastic film and steel strapping, or in wooden crates for larger orders, to prevent damage during transit. We can also customize packaging according to your requirements.
For more information or to place an order, please contact Anping County Boli Hardware Wiremesh Products Factory. We are here to help you find the right solution.
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