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Help Center316L Stainless Steel Johnson Screen, Slot Separator Scraper Filter, 0.25mm Opening, 1200mm Length, for Solid-Liquid Separation
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As a leading manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory specializes in producing high-quality filtration solutions. Our 316L Stainless Steel Johnson Screen with a 0.25mm opening and 1200mm length is expertly engineered for efficient solid-liquid separation across diverse industries. This slot separator scraper filter combines superior corrosion resistance with precise slot geometry, ensuring reliable performance in demanding environments.
The Johnson screen design features a continuous V-shaped wire wound around support rods, creating a self-cleaning slot that resists clogging. The 0.25mm opening is ideal for capturing fine particles while maintaining high flow rates. Made from 316L stainless steel, it offers excellent resistance to acidic and chloride-containing media, making it suitable for chemical, petrochemical, water treatment, and food processing applications.
Our manufacturing process ensures consistent slot width and mechanical strength. The 1200mm length is a standard option, but we offer custom lengths to fit specific equipment. Each screen undergoes rigorous quality control to meet international standards, ensuring long service life even under high pressure and temperature conditions.
Key Features & Benefits
- High Precision Filtration – 0.25mm slot opening allows accurate solid-liquid separation, reducing downtime and maintenance.
- Corrosion Resistant – 316L stainless steel withstands harsh chemicals, saltwater, and high temperatures.
- Self-Cleaning Design – V-shaped slot prevents particle wedging, enabling easy backwashing and extended service intervals.
- High Mechanical Strength – Continuous wire winding provides structural integrity for high-pressure applications.
- Customizable Dimensions – Length, diameter, end connections, and wire diameter can be tailored to your requirements.
- Versatile Applications – Suitable for oil & gas, mining, wastewater treatment, food processing, and more.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | 316L Stainless Steel |
| Slot Opening | 0.25 mm |
| Length | 1200 mm |
| Slot Shape | V-shaped (continuous) |
| Support Rod Diameter | 3.0 mm – 6.0 mm (customizable) |
| Wire Diameter | 1.5 mm – 4.0 mm (customizable) |
| End Connection | Flanged, threaded, or welded (custom) |
| Max Operating Temperature | Up to 400°C (depending on media) |
| Standard | Manufactured per industry norms (customizable) |
Applications
- Oil & Gas – Sand control screens, downhole filtration.
- Water Treatment – Municipal and industrial wastewater, filtration screens.
- Chemical Processing – Catalyst recovery, slurry filtration.
- Food & Beverage – Juice extraction, syrup filtration, starch processing.
- Mining & Minerals – Dewatering screens, particle classification.
- Pharmaceutical – Fine filtration in production lines.
The 316L Stainless Steel Johnson Screen is designed to deliver long-lasting performance in the most challenging solid-liquid separation tasks. Its robust construction and precise slot geometry ensure minimal pressure drop and maximum filtration efficiency.
Our factory, established in 1998, has been exporting to over 20 countries and regions, with an annual export value of US$5–10 million. We ship from major Chinese ports (Tianjin, Qingdao, Shanghai, Foshan) and serve markets including North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our experienced team ensures strict quality control, competitive pricing, and timely delivery.
We understand that every filtration application is unique. Therefore, we offer customization services for diameter, length, slot opening, and end connections. Whether you need a standard 1200mm screen or a bespoke solution, we are ready to meet your requirements.
Choose Anping County Boli Hardware Wiremesh Products Factory for reliable, durable, and precision-engineered filtration products. Contact us today to discuss your specific needs or request a quotation. We look forward to partnering with you for your solid-liquid separation projects.
Frequently Asked Questions (FAQ)
1. What is the maximum pressure this Johnson screen can handle?
The pressure rating depends on the screen diameter, wire thickness, and support structure. Typically, our standard screens can withstand up to 10 bar (145 psi) under normal conditions. For higher pressure applications, we can reinforce the design. Please provide your operating parameters for a custom recommendation.
2. Can the screen be cleaned easily?
Yes, the V-shaped slot design minimizes particle entrapment and allows effective backwashing. In many cases, simply reversing the flow or using a mild cleaning solution restores the screen's performance. For stubborn deposits, ultrasonic cleaning is also an option.
3. Are custom lengths and diameters available?
Absolutely. We can produce screens with lengths from 100 mm to 6000 mm and diameters from 20 mm to 500 mm. Custom slot openings (0.1 mm – 6 mm) are also available. Contact our sales team with your specifications.
4. What is the typical lead time?
For standard sizes (like 1200mm length), lead time is 15–20 working days after order confirmation. Custom orders may require 25–35 working days, depending on complexity. We expedite urgent orders upon request.
5. Is this screen suitable for food-grade applications?
Yes, 316L stainless steel is FDA-compliant for food contact. Our screens can be manufactured with a smooth surface finish and passivated to meet food industry hygiene standards. Please specify if you require a food-grade certification or surface treatment.
6. How do I choose the correct slot opening for my application?
The slot opening should be slightly smaller than the smallest particle you want to retain. For example, a 0.25mm opening captures particles larger than 250 microns. We recommend sending a sample of your slurry or providing particle size distribution data so we can suggest the optimal opening.
7. Can you provide a sample before bulk order?
Yes, we offer sample screens (typically 200–300 mm length) for testing. The sample cost is usually deducted from the bulk order. Please contact us to arrange a sample and discuss testing procedures.
8. What is the warranty period?
We offer a 12-month warranty against manufacturing defects under normal operating conditions. For any issues caused by improper use or chemical incompatibility, we provide technical support to help resolve the problem. Our after-sales team is available to assist.
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