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 stellar range of materials including 304, 304L, 316, 316L, 321, 310S, Duplex steel, Hastelloy, and Titanium alloy. Our regular products are available at unbeatable stock prices, paired with the fastest delivery to ensure your projects never miss a beat.
- Tube Diameter: Available from a versatile 0.5"-60" range. We also support custom orders for larger pipe diameters. Our regular sizes come conveniently in molds and are readily available from stock.
- Tube Length: Offered in a variety of lengths including 0.3 m, 0.6 m, 1 m, 2 m, 3 m, and 6 m. For specific project needs, we provide customization to ensure perfect fit and function.
- Slot Size: Precision-engineered slot sizes range from 0.02 mm to 2.5 mm to accommodate diverse applications and ensure optimal performance.
- Surface Profile Type: Crafted with precision, our Triangle wire surface profile provides superior strength and durability.
- Support Profile: Our versatile support profiles include Triangular (V-shaped, wedge), round rod, flat bar, water-drop, and square wire, offering robust configurations to meet your specific needs.
- End Types: Tailor your product with various end types including welding rings, welding threaded joints, welding flange, welding clasp, and more, ensuring seamless integration into your systems.
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
- We adhere to rigorous testing procedures prior to shipping, meticulously measuring each product to guarantee they meet your exact specifications, ensuring satisfaction with each customized order.
- Not easy to jam
Thanks to its special V-shaped wire design, the Wedge Wire Screen Tube ensures that the outer hole of the screen is smaller than the inner one, significantly reducing the likelihood of jamming and ensuring smooth operation.
- Uniform slot
Precision-crafted using state-of-the-art CNC machine tools, the gap between the wires is meticulously controlled to ensure exceptional uniformity, delivering consistent performance across various applications.
- Strong corrosion resistance
Fabricated from premium Stainless Steel 304, these screen tubes boast remarkable corrosion resistance, making them ideal for challenging environments and extending their lifespan.
- Large flow rateThis innovative screen pipe design features minimal resistance, offering a substantially increased flow area compared to plastic filter elements of comparable size. As a result, for the same resistance, the flow rate is enhanced, allowing for reduced filter element usage while maintaining output efficiency.
- Adjustable gapTailored to meet diverse user needs, the adjustable gap between the internal stainless steel trapezoidal wires accommodates various filter equipment and media. The continuous welding process ensures these adjustments are precise and reliable.
The following is the machining welding process
Our meticulous welding process, underscored by rigorous quality control measures, guarantees that you receive a product of unmatched reliability that adheres to the highest industry standards.
Our exceptional products find extensive application across a diverse spectrum of industries, including advanced filtration, comprehensive screening, efficient dehydration, and state-of-the-art sewage treatment systems.
- Water Treatment
- Elevate your water purification processes with our Wedge Wire Screen Tube! Expertly designed to act as top-tier filters and separators, our product effectively removes suspended solids and particulate matter, making it ideal for critical applications in drinking water purification, robust wastewater management, and various industrial water treatment processes.
- Enhance the efficiency of your desalination, descaling, and softening systems with our product as an exceptional filtration medium, ensuring superior treatment efficacy and optimal performance.
- Chemical
- Our Wedge Wire Screen Tube is an indispensable asset in the chemical industry, serving as premium filtration components in sophisticated equipment such as reactors, distillation towers, and centrifuges, enabling the seamless separation of liquids and solids.
- Ensure unparalleled product purity with our screen tube, providing sterile filtration solutions in the demanding arenas of pharmaceuticals and food processing.
- Mining
- Empower your mining operations with our screen tube, expertly crafted for solid-liquid separation and filtration, facilitating the extraction of concentrates from slurry, and playing a pivotal role in mining beneficiation and coal washing operations.
- Our product is also adept at extracting and filtering slurry from tailings ponds, ensuring operational efficiency and environmental safety.
- Oil & Gas
- Optimize your oil and gas operations with our screen tube as a strategic filter in drilling, oil extraction, and pipeline transportation, effectively separating oil, water, and impurities for enhanced operational success.
- Achieve precision filtration in oil and gas processing units, ensuring top-tier product quality with our cutting-edge filtration solutions.
- Power
- Our product serves as a critical filtration component for equipment like turbine generators and boilers, adept at removing suspended solids and impurities from water, ensuring seamless operation.
- In nuclear power plants, our screen tube is a reliable component in cooling water systems, guaranteeing safe and reliable operation with consistent performance.

Hebei Slot Filter Technology CO., LTD Established in 2014, Hebei Slot Filter Technology Co., Ltd. seamlessly blends innovation and tradition as an industry and trade integration company. We boast cutting-edge international welding processing equipment and a dedicated, highly skilled production team.
With a decade of unparalleled expertise in the realm of filtration and solid-liquid separation products, we guarantee an unmatched caliber of products and services. Our extensive product lineup includes Wedge Wire Screens, Sieve bend screens, Centrifugal screens, Water Intake screens, Johnson screen support grids, Well screens, Backwash filters, Resin traps, Laterals Water distributors, Perforated metals, and more. We proudly work with a wide array of raw materials including SS304, SS316L, duplex steel, super duplex, Monel 400, and Hastelloy, ensuring solutions that cater to diverse applications. Whether for water treatment, starch processing, sugar mills, pharmaceuticals, chemicals, petrochemicals, or any industry requiring solid and liquid or solid-to-solid separation, our products are designed to excel.
Our state-of-the-art factory is equipped with over ten specialized production lines and a myriad of manufacturing processes. We offer solutions tailored to your unique specifications, employing techniques such as CNC punching, CNC drilling, laser cutting, high-frequency resistance welding, milling, polishing, pickling, among others.
Our unwavering mission is to meticulously control product quality, continuously elevate our professional prowess, and innovate more products and solutions to fulfill our customers' unique requirements. Our aspiration is to be the manufacturer synonymous with innovative solutions and to foster enduring, mutually beneficial partnerships with our clients.
cooperation with our customers.
Elevate your projects with our expertise! As a leading manufacturer and supplier of wedge wire products, we pride ourselves on maintaining a pristine workshop, equipped with cutting-edge technology and staffed by highly skilled professionals. Our rigorous quality control system ensures that each product meets the highest standards of excellence.
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