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Help Center316L Stainless Steel Spiral Punched Tube, 1.0mm Wall Thickness, 50mm Length, for Industrial Filtration
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About the Product – As a leading manufacturer from Anping County Boli Hardware Wiremesh Products Factory (established in 1998), we proudly present our 316L Stainless Steel Spiral Punched Tube with a precise wall thickness of 1.0mm and a length of 50mm. This tube is engineered specifically for demanding industrial filtration applications where corrosion resistance, durability, and precise flow control are essential. With over two decades of experience in metal forming and wire mesh fabrication, we ensure that every tube meets rigorous quality standards, providing you with a reliable filtration solution that reduces downtime and maintenance costs.
The spiral punched design offers a unique combination of mechanical strength and efficient filtration. Unlike traditional straight-slot tubes, the spiral pattern distributes stress evenly along the tube body, enhancing structural integrity while maintaining a high open area ratio. This results in improved flow rates and reduced pressure drop, making it an ideal choice for applications such as chemical processing, water treatment, oil and gas refining, and food & beverage production.
Our 316L stainless steel composition provides excellent resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking, even in harsh environments. The 1.0mm wall thickness ensures robust performance under high pressures and temperatures, while the compact 50mm length allows for easy integration into existing filtration systems or custom assemblies.
Key Features & Technical Specifications
- Material Excellence: Grade 316L stainless steel with low carbon content (≤0.03%) for superior weldability and corrosion resistance.
- Precision Dimensions: Wall thickness 1.0mm ±0.05mm, length 50mm ±0.5mm, diameter customizable to your requirements.
- Spiral Punch Pattern: Continuous helical slots that provide uniform filtration and self-cleaning characteristics.
- High Open Area: Up to 25% open area (depending on punch size and spacing) for optimal flow efficiency.
- Strength & Durability: The spiral geometry enhances hoop strength, allowing the tube to withstand high backwash pressures.
- Surface Finish: Standard mill finish; passivation or electropolishing available upon request.
- Customizable Options: Accept custom diameters, lengths, punch sizes, and end treatments (plain, threaded, flanged).
- Applications: Suitable for filter housings, basket strainers, catalyst support, and fluidized bed systems.
| Parameter | Value | Remarks |
|---|---|---|
| Material | 316L Stainless Steel (UNS S31603) | Low carbon, improved corrosion resistance |
| Wall Thickness | 1.0 mm | Tolerance: ±0.05mm |
| Length | 50 mm | Custom lengths available |
| Punch Pattern | Spiral (helical) | Slot width/density customizable |
| Open Area | 20% – 30% (typical) | Depends on punch configuration |
| Operating Temperature | -20°C to +400°C | Continuous service |
| End Connection | Plain (as standard) | Threaded, grooved, or welded ends optional |
The spiral punched design also offers a self-cleaning benefit: during backwashing, the helical slots direct fluid flow tangentially, dislodging trapped particles more effectively than straight slots. This reduces cleaning frequency and extends the service life of the filter element. Compared to wire mesh screens, the punched tube provides a rigid structure that does not unravel or deform under high differential pressure.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With over 25 years of manufacturing experience (since 1998), we have supplied high-quality filtration components to customers across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and domestic China. Our annual export value exceeds US$5 million, reflecting the trust and satisfaction of our global clientele. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery anywhere in the world.
Every tube is produced using advanced CNC punching machinery and undergoes strict dimensional inspection. We can also provide material test certificates upon request, ensuring full traceability of the 316L stainless steel grade. Our factory is equipped to handle both small prototype orders and large-volume production runs, with flexible lead times.
We are committed to being your reliable partner in filtration. Whether you need standard 50mm tubes or custom-designed spiral punched tubes for a specific application, our engineering team is ready to assist you. Contact us today to discuss your requirements and receive a competitive quotation. Experience the durability and performance of a product backed by decades of expertise.
Frequently Asked Questions (FAQ)
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What is the difference between 316L and 316 stainless steel?
316L has a lower carbon content (≤0.03%) compared to 316 (≤0.08%). This reduces the risk of carbide precipitation during welding, making 316L more suitable for applications requiring corrosion resistance in harsh environments and for welded assemblies. -
Can I get tubes with different diameters or lengths?
Yes. While the standard offered is 50mm length, we can customize the outer diameter, wall thickness, and length according to your specifications. Minimum order quantities may apply for custom sizes. -
What is the maximum operating pressure for this tube?
The pressure rating depends on the tube diameter, wall thickness, and slot geometry. For a typical 1.0mm wall thickness, the tube can withstand working pressures up to 10 bar (145 psi) under steady conditions. For higher pressure applications, we recommend thicker walls or smaller diameters. -
How do I clean the spiral punched tube?
The tube can be cleaned by backwashing, chemical cleaning, or ultrasonic cleaning. The spiral design facilitates easy removal of contaminants. Avoid using abrasive tools that may damage the surface. -
Do you provide certificates like material test reports?
Yes. We can provide a mill test certificate (MTC) for the 316L stainless steel material upon request. Additional third-party inspection reports are also available at an extra cost. -
What is the minimum order quantity for this product?
For standard 50mm length tubes, the MOQ is typically 100 pieces. For custom specifications, please contact us to discuss your volume needs. -
Can the tube be used for food-grade applications?
316L stainless steel is generally considered food-safe and complies with FDA regulations. However, we recommend verifying with your specific local standards. The surface finish can be electropolished to improve cleanability. -
How long does delivery take?
For standard sizes, delivery is typically 7–15 days after order confirmation. For custom orders, lead time may be 15–25 days, depending on complexity and quantity. We ship via sea, air, or express courier.
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