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: Our products are crafted from premium materials such as 304, 304L, 316, 316L, 321, 310S, Duplex steel, Hastelloy, Titanium alloy, and more. Enjoy the benefits of regular stock availability at exceptional prices, ensuring the quickest possible delivery to your doorstep.
- Tube Diameter: Select from a versatile range of diameters between 0.5" and 60", with the capability to accommodate orders for even larger sizes. Regular sizes are readily available in molds and stock for your convenience.
- Tube Length: Choose from our varied lengths of 0.3 m, 0.6 m, 1 m, 2 m, 3 m, and 6 m. Additionally, we cater to unique requirements with customization options to meet special size demands.
- Slot Size: Available slot sizes range from 0.02 mm to 2.5 mm, offering precise specifications for diverse applications.
- Surface Profile Type: Crafted with precision, our surfaces feature a Triangle wire profile for enhanced performance.
- Support Profile: Discover an array of support profiles including Triangular (V-shaped, wedge), round rod, flat bar, water-drop, and square wire, each designed to provide robust support and optimal functionality.
- End Types: Our products feature versatile end types such as welding rings, welding threaded joints, welding flange, welding clasp, and more, ensuring seamless integration with a variety of 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
- Prior to dispatch, our products undergo meticulous measurement in accordance with stringent testing procedures to guarantee that they satisfy the bespoke requirements of our esteemed clientele.
- Not easy to jam
Through meticulous engineering, our Wedge Wire Screen Tube features a unique V-shaped wire design. This innovation ensures that the screen's external surface holes are smaller than those inside, significantly minimizing the risk of clogging and ensuring seamless operation.
- Uniform slot
Precision is at the heart of our manufacturing. With the use of advanced CNC machine tools, we meticulously control the wire gaps to achieve unparalleled uniformity, guaranteeing consistent and reliable performance.
- Strong corrosion resistance
Crafted from premium Stainless Steel 304, our product boasts exceptional resistance to corrosion, ensuring durability and longevity even in the harshest environments.
- Large flow rateOur screen pipe is designed to optimize flow efficiency. With reduced resistance compared to similar-sized plastic filter elements, it significantly enhances flow area. This means under identical resistance, the flow rate is substantially increased, allowing for fewer filter elements to achieve the desired output.
- Adjustable gapTailored to meet diverse needs, our screen pipe allows for adjustable gaps between the stainless steel trapezoidal wires. This adaptability ensures compatibility with various filtration equipment and media, offering bespoke solutions for every user.
The following is the machining welding process
We pride ourselves on delivering excellence through our stringent quality control process. This rigorous approach ensures that each product you receive adheres to the highest industry standards, providing you with unmatched reliability and peace of mind.
Our remarkable products are extensively utilized across a multitude of sectors including advanced filtration, precise screening, effective dehydration, sophisticated sewage treatment, and a variety of other essential equipment applications.
- Water Treatment
- Our Wedge Wire Screen Tubes excel as filters and efficient separators, expertly removing suspended solids and particulate matter from water. Widely employed in critical applications such as drinking water purification, comprehensive wastewater management, and diverse industrial water treatments, they ensure exceptional quality and performance.
- As a high-performing filtration medium, our products play a crucial role in systems like desalination, descaling, and softening, significantly enhancing the overall treatment efficiency.
- Chemical
- Our technology is indispensable in chemical processes, serving as vital filtration components within reactors, distillation towers, and centrifuges to efficiently separate liquids from solids, ensuring operational excellence.
- In the realms of pharmaceuticals and food processing, our products provide sterile filtration, safeguarding product purity and maintaining the highest standards of safety.
- Mining
- Our innovative solutions are pivotal for solid-liquid separation and filtration, facilitating the extraction of concentrates from slurry. They are extensively deployed in mining beneficiation and coal washing, optimizing productivity and resource utilization.
- They are also expertly engineered to extract and filter slurry from tailings ponds, ensuring environmental compliance and resource efficiency.
- Oil & Gas
- In the demanding oil and gas sector, our filters are indispensable for drilling, oil extraction, and pipeline transportation, seamlessly separating oil, water, and impurities to maintain operational integrity.
- Our products also provide precision filtration within oil and gas processing units, ensuring superior product quality and consistency.
- Power
- Engineered for excellence, our filters are used in critical power equipment such as turbine generators and boilers, meticulously removing suspended solids and impurities from water to maintain peak efficiency.
- In nuclear power plant cooling systems, our solutions are applied to assure safe, reliable, and uninterrupted operation, reflecting our commitment to superior technology and safety standards.

Hebei Slot Filter Technology CO.,LTD Established in 2014, Hebei Slot Filter Technology Co., Ltd. is an exemplary industry and trade integration company, outfitted with internationally advanced welding and processing equipment, supported by a highly skilled and professional production team.
With a decade of dedicated expertise in crafting superior filtration and solid-liquid separation solutions, we are committed to delivering only the highest quality products and services. Our diverse product range includes Wedge Wire Screens, Sieve Bend Screens, Centrifugal Screens, Water Intake Screens, Johnson Screen Support Grids, Well Screens, Backwash Filters, Resin Traps, Lateral Water Distributors, Perforated Metal, and more. We work with a wide array of premium raw materials such as SS304, SS316L, Duplex Steel, Super Duplex, Monel 400, and Hastelloy, ensuring our products excel in various sectors. These sectors include, but are not limited to, water treatment, starch processing, sugar mills, and the pharmaceutical, chemical, and petrochemical industries where efficient solid-liquid and solid-solid separation is paramount.
Our cutting-edge facility is equipped with over ten specialized production lines, employing a variety of advanced manufacturing processes to cater to customized demands. These include CNC punching, CNC drilling, laser cutting, high-frequency resistance welding, milling, polishing, and pickling, among others, ensuring precision and quality in every product.
Our unwavering mission is to rigorously uphold product quality, continually enhance our expertise, and innovate new products and solutions tailored to our customers' unique requirements. We aspire to be a leading manufacturer that prioritizes solution-oriented approaches, fostering enduring, mutually beneficial collaborations with our clientele.
We are steadfast in our pursuit of building sustainable, win-win partnerships with our valued customers.
Hebei Slot Filter Technology Co., Ltd. proudly stands as a leading expert in the manufacturing and supply of top-tier wedge wire products. Our state-of-the-art facility is a testament to our commitment to excellence, featuring a meticulously organized workshop, cutting-edge machinery, and a team of highly skilled professionals. We enforce a rigorous quality control system to ensure that every product meets our high standards.
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