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Help CenterStainless Steel Johnson Wedge Filter With 1-Year Warranty, Mill Test Report Included
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As a leading manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory is proud to present our Stainless Steel Johnson Wedge Filter, designed to deliver exceptional filtration performance across diverse industries. With a one-year warranty and a complete mill test report included, this product reflects our commitment to quality and transparency. Our 25+ years of expertise, combined with an annual export value of US$5–10 million, ensures that every filter meets the rigorous demands of global markets, from North America to Southeast Asia.
The Johnson wedge filter is constructed from high-grade stainless steel (304 or 316L), featuring a continuous V-shaped wire wound around a support rod structure. This design provides a self-cleaning slot surface, high mechanical strength, and excellent resistance to corrosion and abrasion. The filter is ideal for applications where precise particle separation and long service life are critical, such as water treatment, oil & gas well screens, food processing, chemical filtration, and mining dewatering.
Key Features and Benefits
- V-Shaped Wire Profile: The wedge wire geometry creates a smooth inner surface and a slotted outer surface, minimizing clogging and ensuring easy backwashing. This reduces downtime and maintenance costs.
- High Open Area: Compared to traditional mesh screens, our Johnson filter offers a larger open area (up to 50% or more), allowing higher flow rates with lower pressure drop.
- Precise Slot Tolerances: Slot openings are manufactured to tight tolerances (±0.05 mm), enabling accurate particle size separation from 0.1 mm to 6 mm, customizable to your exact specifications.
- Exceptional Strength: The continuous wedge wire winding over support rods provides a robust structure capable of withstanding high pressure, vibration, and thermal stress. Suitable for deep well and heavy-duty industrial applications.
- Corrosion Resistance: Stainless steel materials (304/316L/904L) offer excellent resistance to acidic, alkaline, and chloride environments, extending service life even in harsh conditions.
- Complete Documentation: Every filter comes with a detailed mill test report, verifying material composition and mechanical properties, ensuring full traceability and compliance with international standards.
- One-Year Warranty: We stand behind our product quality with a comprehensive warranty, covering manufacturing defects and providing peace of mind for your investment.
- Customizable Design: Available in various shapes (cylindrical, flat, conical), connection types (flange, thread, weld), and end configurations (closed, open, with cap). Dimensions, slot size, and wire diameter can be tailored to your project requirements.
Technical Specifications (Standard Cylindrical Filter)
| Parameter | Value |
|---|---|
| Material | Stainless Steel 304 / 316L (customizable) |
| Slot Width | 0.1 mm – 6 mm (customizable) |
| Wire Diameter | 1.0 mm – 5.0 mm |
| Outer Diameter | 25 mm – 600 mm |
| Length | Up to 6000 mm (single piece) |
| Connection Type | Flange (ANSI/DIN), Thread (NPT/BSP), Weld end |
| End Configuration | Open / Closed / Cap (customizable) |
| Max Operating Pressure | Up to 100 bar (depending on dimensions) |
| Surface Finish | Pickled, polished, or as required |
Applications
- Water & Wastewater Treatment: Intake screens, filter nozzles, sand control, and desalination plants.
- Oil & Gas Industry: Well screens, gravel pack screens, and downhole sand filters.
- Food & Beverage: Juice filtration, beer brewing, and sugar processing.
- Chemical & Pharmaceutical: Catalyst recovery, solvent filtration, and resin traps.
- Mining & Mineral Processing: Dewatering screens, heavy media separation, and sizing.
- Environmental Protection: Air pollution control, dust collection, and liquid-solid separation.
Why Choose Boli Hardware?
Founded in 1998, our factory has grown into a trusted supplier of wire mesh and filtration products, exporting to over 15 markets worldwide. With an annual export value of US$5–10 million, we ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery to your location. Our team of experienced engineers and quality control specialists oversees every production stage, from raw material inspection to final packaging. The included mill test report provides full material traceability, and our one-year warranty underscores our confidence in product durability. We welcome custom orders and are happy to provide samples or technical support upon request. Contact us today to discuss your filtration needs – we are here to deliver reliable, efficient solutions.
Frequently Asked Questions
- What is the difference between a Johnson wedge filter and a wire mesh screen? A Johnson wedge filter uses a continuous V-shaped wire wound around support rods, creating a smooth slot surface that is less prone to clogging and easier to clean. It offers higher strength and more precise slot tolerance compared to woven wire mesh, making it ideal for high-pressure and high-flow applications.
- Can I get a custom slot size or dimension? Absolutely. Slot sizes from 0.1 mm to 6 mm and outer diameters from 25 mm to 600 mm are customizable. Lengths can be made up to 6000 mm in one piece, and we can also produce non-standard shapes. Please provide your requirements for a tailored solution.
- What materials are available besides stainless steel? While stainless steel (304, 316L, 904L) is standard, we can also manufacture from duplex stainless steel, Hastelloy, or other alloys upon request. Contact our sales team for special material options.
- Is the mill test report provided for every order? Yes, each filter includes a mill test report that certifies the material chemical composition and mechanical properties. This ensures full traceability and compliance with international standards such as ASTM or ASME.
- How do you ensure the filter’s slot tolerance is accurate? We use advanced CNC winding machines and laser measurement systems to control slot width within ±0.05 mm. Every filter undergoes visual inspection and hydraulic testing before shipment.
- What is the typical lead time for standard products? For standard sizes and materials, production takes approximately 15–25 working days after order confirmation. Custom orders may require 20–35 working days, depending on complexity. We can arrange expedited shipping for urgent requests.
- Do you offer samples for testing? Yes, we can provide sample filters (subject to size and quantity). Please contact us with your specific requirements, and we will discuss sample availability and shipping costs.
- How do I maintain and clean the wedge filter? The wedge filter is designed for easy backwashing and chemical cleaning. For most applications, regular backwashing with water or air is sufficient to remove debris. Avoid using harsh chemicals that may attack the stainless steel surface. Detailed maintenance guidelines are provided with each order.
Ready to upgrade your filtration system? Our team at Anping County Boli Hardware Wiremesh Products Factory is ready to assist you with technical advice, quotations, and custom designs. With our proven track record since 1998 and a global customer base, you can trust us to deliver high-quality, durable Johnson wedge filters. Request a quote or send your drawings today – we look forward to partnering with you.
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