Johnson Screen Tube also named wedge wire screen tube, wrapped wire tubes, wire wrapped screen pipe, wire wrapped screen pipe,are manufactured by a v or wedge shaped wire around an internal array of longitudinal support rods.Each intersecting point of these wires is fusion welded,so it has sturdy constriction and good mechanical property.The wedge-shape section plane can avoid blockage,and make sure of the unimpeded water.
- Material: Choose from a range of premium materials including 304, 304L, 316, 316L, 321, 310S, Duplex steel, Hastelloy, Titanium alloy, and more. Our inventory is well-stocked with these high-quality materials, offering you competitive pricing and the swiftest delivery times available.
- Tube diameter: Our tubes come in diameters ranging from 0.5" to 60". For those requiring even larger sizes, we offer custom ordering. Regularly demanded sizes are already in stock and ready to be molded to your specifications.
- Tube length: Available in lengths of 0.3 m, 0.6 m, 1 m, 2 m, 3 m, and 6 m, with the flexibility to customize to special sizes as needed to perfectly suit your application.
- Slot size: Precision slot size options from 0.02 to 2.5 mm, ensuring optimal performance for your specific filtration requirements.
- Surface profile type: Featuring a robust triangle wire surface profile for enhanced durability and performance.
- Support profile: Choose from a versatile range of support profiles including Triangular (V-shaped, wedge), round rod, flat bar, water-drop, and square wire to suit your specific needs.
- End Types: End your tube with precision with options like welding rings, welding threaded joints, welding flange, welding clasp, and more. We ensure a perfect fit for your project.
Table 1: Common Specifications of Plain Wedge Wire Screen Tube
Item Code |
Screen
(O.D.) |
Support Rod
(mm) |
Support Rod No. |
Screen V-Wires
(mm) |
SLT-19 |
19 |
2 × 3 |
8 |
0.75 × 1.5, 1 × 2 |
SLT-25.4 |
25.4 |
2 × 3 |
8 |
0.75 × 1.5, 1 × 2 |
SLT-30 |
30 |
2 × 3 |
8 |
0.75 × 1.5, 1 × 2 |
SLT-32 |
32 |
2 × 3 |
8 |
0.75 × 1.5, 1 × 2 |
SLT-33.5 |
33.5 |
2 × 3 |
8 |
0.75 × 1.5, 1 × 2 |
SLT-33.5 |
36 |
2 × 3 |
10 |
0.75 × 1.5, 1 × 2 |
SLT-40 |
40 |
2 × 3 |
10 |
1 × 2, 1.5 × 2.5 |
SLT-42 |
42 |
2 × 3 |
10 |
1 × 2, 1.5 × 2.5 |
SLT-45 |
45 |
2 × 3 |
10 |
1 × 2, 1.5 × 2.5 |
SLT-48 |
48 |
2 × 3 |
10 |
1 × 2, 1.5 × 2.5 |
SLT-50 |
50 |
2 × 3 |
12 |
1 × 2, 1.5 × 2.5 |
SLT-53 |
53 |
2 × 3 |
12 |
1 × 2, 1.5 × 2.5 |
SLT-53 |
57 |
2 × 3 |
12 |
1 × 2, 1.5 × 2.5 |
SLT-60 |
60 |
2 × 3 |
16 |
1 × 2, 1.5 × 2.5 |
SLT-63 |
63 |
2 × 3 |
18 |
1 × 2, 1.5 × 2.5 |
SLT-68 |
68 |
2 × 3 |
20 |
1 × 2, 1.5 × 2.5 |
SLT-70 |
70 |
2 × 3 |
22 |
1 × 2, 1.5 × 2.5 |
SLT-76 |
76 |
2 × 3 |
16 |
1 × 2, 1.5 × 2.5 |
SLT-80 |
80 |
2 × 3 |
20 |
1 × 2, 1.5 × 2.5 |
SLT-85 |
85 |
2 × 3 |
20 |
1 × 2, 1.5 × 2.5 |
SLT-89 |
89 |
2 × 3 |
20 |
1 × 2, 1.5 × 2.5 |
SLT-95 |
95 |
2 × 3 |
28 |
1 × 2, 1.5 × 2.5 |
SLT-100 |
100 |
2 × 3 |
22 |
1 × 2, 1.5 × 2.5 |
SLT-110 |
110 |
2 × 3 |
22 |
1 × 2, 1.5 × 2.5 |
SLT-114 |
114 |
2 × 3 |
30 |
1 × 2, 1.5 × 2.5 |
SLT-120 |
120 |
2 × 3, 3 × 5 |
26 |
1 × 2, 1.5 × 2.5, 2 × 3 |
SLT-125 |
125 |
2 × 3, 3 × 5 |
34 |
1 × 2, 1.5 × 2.5, 2 × 3 |
SLT-130 |
130 |
2 × 3, 3 × 5 |
38 |
1 × 2, 1.5 × 2.5, 2 × 3 |
SLT-140 |
140 |
2 × 3, 3 × 5 |
24 |
1 × 2, 1.5 × 2.5, 2 × 3 |
SLT-150 |
150 |
2 × 3, 3 × 5 |
44 |
1 × 2, 1.5 × 2.5, 2 × 3 |
SLT-160 |
160 |
2 × 3, 3 × 5 |
46 |
1 × 2, 1.5 × 2.5, 2 × 3 |
SLT-180 |
180 |
2 × 3, 3 × 5 |
50 |
1 × 2, 1.5 × 2.5, 2 × 3, 3 × 5 |
SLT-200 |
200 |
2 × 3, 3 × 5 |
48 |
1 × 2, 1.5 × 2.5, 2 × 3, 3 × 5 |
Detailed Photos
- Before dispatch, each product undergoes rigorous measurement and inspection procedures to guarantee it fulfills the bespoke requirements set by our clients, ensuring top-tier quality upon export.
- Unmatched Resistance to Jamming
The ingeniously designed V-shaped wire ensures that the screen's external face features smaller openings than the interior. This clever architectural choice minimizes blockages and enhances operational efficiency.
- Uniform Slot Precision
With the aid of state-of-the-art CNC machine tools, we meticulously regulate the spacing between each wire, guaranteeing exceptionally consistent and precise slot uniformity throughout the screen.
- Impressive Corrosion Resistance
Crafted from premium-grade stainless steel 304, our product exhibits outstanding resistance to corrosion, promising durability and longevity even in harsh environments.
- Enhanced Flow RateThis innovative screen tube is engineered to reduce resistance significantly. When compared to traditional plastic filter elements of similar dimensions, it offers a remarkably larger flow area. This enhancement means that, for identical resistance levels, the flow rate is substantially increased. Consequently, fewer filter elements are needed, optimizing efficiency and reducing costs.
- Customizable Gap FlexibilityUnderstanding the diverse needs of various users and their specific filtering media, our screen pipe features adjustable gaps. The continuous welding of stainless steel trapezoidal wires allows for precise customization, catering to individual equipment requirements.
Exemplary Machining Welding Process
Our rigorous quality assurance process ensures that every product meets the pinnacle of industry standards, delivering reliability and performance you can trust.
Our products are widely esteemed for their versatile application in various sectors, including filtration, screening, dehydration, sewage treatment, and beyond, showcasing our commitment to quality and innovation.
- Water Treatment
- Our Wedge Wire Screen Tube excels as a robust filter and separator, adeptly removing suspended solids and particulate matter from water. This indispensable tool finds extensive utility in drinking water treatment, wastewater treatment, and industrial water purification processes, enhancing both efficiency and reliability.
- In desalination, descaling, and softening systems, our product serves as a critical filtration medium, significantly improving treatment efficacy and ensuring optimal performance.
- Chemical
- In the chemical industry, our product shines as a filtration component in vital equipment such as reactors, distillation towers, and centrifuges, efficiently separating liquids and solids to streamline processes and enhance productivity.
- Our technology is pivotal for sterile filtration within pharmaceuticals and food processing sectors, safeguarding product purity and compliance with stringent health standards.
- Mining
- In the demanding mining sector, our solution is essential for solid-liquid separation and filtration, crucial for extracting concentrates from slurry. It plays a key role in mining beneficiation and coal washing, ensuring operational excellence.
- Our product is also instrumental in extracting and filtering slurry from tailings ponds, optimizing resource recovery and environmental management.
- Oil & Gas
- Our product is integral to the oil and gas industry, serving as reliable filters during drilling, oil extraction, and pipeline transportation. It adeptly separates oil, water, and impurities, ensuring smooth and efficient operations.
- In oil and gas processing units, our product performs precision filtration, guaranteeing superior product quality and meeting industry standards.
- Power
- In the power sector, our product functions as an essential filter for equipment like turbine generators and boilers, effectively removing suspended solids and impurities from water, thus maintaining system integrity and performance.
- Our product is crucial in the cooling water systems of nuclear power plants, ensuring safe, reliable, and uninterrupted operation, reinforcing our commitment to excellence in energy production.

Hebei Slot Filter Technology CO.,LTD Established in 2014, Hebei Slot Filter Technology Co., Ltd. stands as a beacon of excellence in the realm of industry and trade. With state-of-the-art welding processing equipment and a highly skilled production team, we seamlessly integrate innovation and expertise.
Leveraging a decade of unmatched expertise in producing top-notch filtration and solid-liquid separation solutions, we are dedicated to delivering superior products and unparalleled services. Our extensive product line includes high-quality Wedge Wire Screens, Sieve Bend Screens, Centrifugal Screens, Water Intake Screens, Johnson Screen Support Grids, Well Screens, Backwash Filters, Resin Traps, Lateral Water Distributors, and Perforated Metals. Our versatile offerings are crafted from a variety of premium materials, such as SS304, SS316L, Duplex Steel, Super Duplex, Monel 400, and Hastelloy. Our products cater to industries where efficient separation of solids and liquids is essential, including water treatment, starch processing, sugar mills, pharmaceuticals, chemicals, petrochemicals, and more.
Our factory boasts over ten specialized production lines, equipped with diverse manufacturing capabilities to accommodate custom requests. From CNC punching and drilling to laser cutting, high-frequency resistance welding, milling, polishing, and pickling, we deliver precision and quality tailored to your unique needs.
Our unwavering commitment is to uphold the highest standards of product quality, continually enhance our expertise, and innovate to meet the unique requirements of our clients. We endeavor to be a solutions-oriented manufacturer, dedicated to fostering enduring partnerships and achieving mutual success.
cooperation with our valued customers.
At Hebei Slot Filter Technology Co., Ltd., we pride ourselves as esteemed manufacturers and suppliers of premium wedge wire products. Our operation is bolstered by an immaculate workshop equipped with state-of-the-art machinery, a team of highly skilled craftsmen, and a rigorous quality control system to ensure excellence in every product we deliver.
Quality Management

1. Who are we?
We are based in Hebei, China, start from 2014,sell to North America(40.00%),Western Europe(30.00%), South Asia (10.00%),
Africa(10.00%), Mid East(10.00%). There are total about 11-50 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Johnson Screen,Water Intake Screen,Coanda Intake Screen,Rotary Drum Screen,Resin Trap,Pressure Arc Screen,Water Filter Nozzle.
4. Why should you buy from us not from other suppliers?
1. Support OEM & ODM
2. We can help customers design drawings.
3. We have own professional research and development group.
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken :English, Chinese, Spanish, Japanese ,Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian