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: We offer an exquisite selection of materials including 304, 304L, 316, 316L, 321, 310S, Duplex steel, Hastelloy, and Titanium alloy. Our regularly stocked items ensure you receive outstanding stock prices and the swiftest delivery possible.
- Tube diameter: 0.5"-60". Seamlessly accommodate orders for larger pipe diameters, with regular sizes readily available in molds and stock.
- Tube length: Available in 0.3 m, 0.6 m, 1 m, 2 m, 3 m, and 6 m lengths. We offer bespoke solutions for special size requirements.
- Slot size: From an ultra-fine 0.02 mm to 2.5 mm, tailored to meet your precise requirements.
- Surface profile type: Expertly crafted Triangle wire for optimal performance.
- Support profile: Choose from a versatile range of profiles including Triangular (V-shaped, wedge), round rod, flat bar, water-drop, and square wire, each designed for superior support.
- End Types: Featuring a variety of end types such as welding rings, welding threaded joints, welding flange, welding clasp, and more for flexible connections.
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
- Our rigorous testing procedures ensure every product is meticulously measured prior to shipping, guaranteeing it meets your precise customization needs.
- Not easy to jam
Thanks to a distinctively engineered V-shaped wire, the exterior face of the screen's apertures is meticulously crafted to be smaller than the interior opening. This innovative design significantly minimizes the risk of clogging, ensuring your operations run smoothly and efficiently.
- Uniform slot
The precision of CNC machine tools ensures that the spacing between wires is meticulously controlled, resulting in flawlessly even gaps. This precision manufacturing guarantees optimal performance and uniform filtration across the entire screen.
- Strong corrosion resistance
Constructed from robust Stainless Steel 304, our product boasts exceptional corrosion resistance, offering enduring durability even in the harshest environments. This feature ensures long-term reliability and reduced maintenance costs.
- Large flow rate
- Our screen pipe, with its expertly designed low resistance profile, significantly expands the flow area compared to traditional plastic filter elements. This enhancement allows for a substantially increased flow rate, empowering you to reduce the number of filter elements needed without compromising on output efficiency.
- Adjustable gap
- Acknowledging the diverse needs of different users and their unique filtration systems, our screen pipe offers adjustable gaps between the stainless steel trapezoidal wires. This flexibility is achieved through continuous welding technology, enabling customization to perfectly match various filter equipment and media requirements.
The following is the machining welding process
Our commitment to excellence is demonstrated through our stringent quality control process, which guarantees that each product meets the pinnacle of industry standards. With our meticulous attention to detail and rigorous testing, you receive a reliable and high-performance solution tailored to your needs.
Our versatile and robust products are expertly designed for a multitude of applications, playing a pivotal role in filtration, screening, dehydration, sewage treatment, and other specialized equipment.
- Water Treatment
- Our wedge wire screen tubes and support bars excel as efficient filters and separators, meticulously removing suspended solids and particulate matter. They are indispensable in the treatment of drinking water, wastewater, and industrial water, ensuring cleaner and safer water solutions.
- Serving as an advanced filtration medium, these products significantly enhance the efficiency of desalination, descaling, and water softening systems.
- Chemical
- Our products are integral components in chemical equipment such as reactors, distillation towers, and centrifuges, expertly separating liquids and solids to optimize processing.
- In the pharmaceutical and food processing industries, our products are essential for sterile filtration, confidently ensuring the highest levels of product purity.
- Mining
- Specialized in solid-liquid separation and filtration, our products efficiently extract concentrates from slurry, proving vital in mining beneficiation and coal washing operations.
- Designed for durability and efficiency, they are perfect for the extraction and filtration of slurry from tailings ponds, optimizing resource recovery.
- Oil & Gas
- In the oil and gas sector, our filters are indispensable in drilling, oil extraction, and pipeline transportation, expertly separating oil, water, and impurities to maintain operational integrity.
- As precision filtration systems, they enhance oil and gas processing units, ensuring quality and consistency in the final product.
- Power
- Our products are crucial in power generation, functioning as filters for turbine generators and boilers to eliminate suspended solids and impurities, thus maintaining equipment efficiency.
- In nuclear power plants, they are applied in cooling water systems, ensuring the safe, reliable, and uninterrupted operation of these critical facilities.

Hebei Slot Filter Technology CO.,LTD Established in 2014, Hebei Slot Filter Technology Co., Ltd. is a leading industry and trade integration company. We boast state-of-the-art welding processing equipment, paired with an elite team of professionals dedicated to excellence.
With a decade of unparalleled expertise, we at Hebei Slot Filter Technology Co., Ltd. provide top-tier filtration and solid-liquid separation products and services. Our main offerings include: Wedge Wire Screens, Sieve Bend Screens, Centrifugal Screens, Water Intake Screens, Johnson Screen Support Grids, Well Screens, Backwash Filters, Resin Traps, Laterals Water Distributors, and Perforated Metal. We utilize a diverse range of raw materials such as SS304, SS316L, duplex steel, super duplex, Monel 400, Hastelloy, and more. Our products are essential for industries where solid-liquid and solid-solid separations are critical, including water treatment, starch processing, sugar mills, pharmaceuticals, chemicals, petrochemicals, and beyond.
Our factory is equipped with over ten dedicated production lines, offering a comprehensive suite of manufacturing processes. Whether it's CNC punching, CNC drilling, laser cutting, high-frequency resistance welding, milling, polishing, or pickling, we possess the capabilities to fulfill a wide array of custom requirements.
Dedicated to excellence, we are committed to rigorous quality control, enhancing our professional skills, and developing innovative products and solutions. Our mission is to become your trusted manufacturer, focusing on tailored solutions that foster long-term, mutually beneficial relationships.
Our cooperation with clients is built on a foundation of trust and shared success, striving for enduring partnerships that yield win-win results.
As a leading and esteemed manufacturer of wedge wire products, we pride ourselves on providing unmatched expertise and excellence. Our state-of-the-art workshop is equipped with cutting-edge machinery and staffed by highly skilled professionals, all operating under a rigorous quality control system to ensure the utmost precision and reliability 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