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: Crafted from a selection of superior materials including 304, 304L, 316, 316L, 321, 310S, Duplex steel, Hastelloy, and Titanium alloy, our products offer unmatched durability and performance. We maintain a robust inventory of popular products, ensuring both competitive pricing and expedited delivery.
- Tube diameter: Available in a wide range from 0.5" to 60", we support orders for even larger pipe diameters. Our regular sizes are readily available, with pre-existing molds and stocked options to meet diverse needs.
- Tube length: Lengths to suit every requirement: choose from 0.3 m, 0.6 m, 1 m, 2 m, 3 m, or 6 m, with the flexibility to customize special sizes for your specific applications.
- Slot size: Precision slots ranging from 0.02 mm to 2.5 mm to meet your filtration needs with exacting accuracy.
- Surface profile type: Featuring a sophisticated triangle wire design for enhanced filtration efficiency.
- Support profile: Choose from a diverse array of support profiles: Triangular (V-shaped, wedge), round rod, flat bar, water-drop, and square wire, each engineered for optimal support and performance.
- End Types: Versatile end types include welding rings, welding threaded joints, welding flange, welding clasp, and an array of other specialized options to suit your connection requirements.
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
- Every product is meticulously inspected before shipment. Our rigorous testing procedures ensure that each item meets the precise specifications and tailored requirements of our valued customers, delivering excellence every time.
- Resistance to Clogging
Our innovative V-shaped wire design ensures that the outer face of the screen has smaller openings than the inside, significantly reducing the risk of clogging and ensuring a smooth flow.
- Precision Uniformity
Our advanced CNC machinery meticulously regulates the spacing between wires, guaranteeing a consistent and uniform gap, enhancing filtration efficiency.
- Exceptional Corrosion Resistance
Crafted from premium-grade stainless steel 304, our screen tubes boast superior corrosion resistance, promising long-lasting durability even in the harshest conditions.
- Maximized Flow EfficiencyEngineered for minimal resistance, our screen pipes offer a significantly increased flow area compared to plastic filters of the same size, allowing for higher flow rates. This means you can achieve the same output with fewer filter elements, optimizing performance and cost efficiency.
- Customizable Slot WidthDesigned to meet diverse filtration needs, our screen pipes feature adjustable gaps between the stainless steel trapezoidal wires, tailored to suit various equipment and media requirements. This flexibility is achieved through continuous welding techniques.
Comprehensive Machining and Welding Process
Our stringent quality control protocols ensure that each product not only meets but exceeds the highest industry standards, delivering unmatched reliability and performance to our valued customers.
Our exceptional range of products finds its versatile applications across various sectors, excelling in filtration, screening, dehydration, sewage treatment, and beyond, bringing state-of-the-art solutions to diverse equipment.
- Water Treatment
- Serving as indispensable tools in water purification, these products adeptly function as filters and separators, efficiently eliminating suspended solids and particulates. They are extensively utilized in the realms of drinking water purification, wastewater treatment, and industrial water management, ensuring a cleaner water supply.
- In desalination, descaling, and water softening applications, they serve as a key filtration medium, significantly enhancing the overall efficiency of water treatment processes.
- Chemical
- In the chemical industry, our products act as vital filtration components within complex systems such as reactors, distillation towers, and centrifuges, effectively separating liquids from solids with precision.
- They play a crucial role in sterile filtration within pharmaceuticals and food processing, safeguarding the purity and quality of the end products through meticulous filtration processes.
- Mining
- Our products are pivotal in mining operations, providing solid-liquid separation and filtration to efficiently extract valuable concentrates from slurry, significantly enhancing operations in mining beneficiation and coal washing.
- They are also instrumental in the filtration and extraction processes in tailings ponds, contributing to resource recovery.
- Oil & Gas
- Essential for oil and gas industries, these products are utilized as filtration systems in drilling, oil extraction, and pipeline operations, effectively separating oil from water and impurities, ensuring optimal resource management.
- In oil and gas processing units, they act as precision filters, maintaining high product quality through meticulous separation techniques.
- Power
- In power generation, especially within turbine generators and boiler systems, they function as critical filters, removing suspended solids and impurities from water, thus ensuring the smooth and efficient operation of the equipment.
- Our products are also utilized in nuclear power plant cooling systems, playing a vital role in maintaining safe and reliable operational conditions through effective water filtration.

Hebei Slot Filter Technology CO.,LTD Founded in 2014, Hebei Slot Filter Technology Co., Ltd. stands as a beacon of innovation in the filtration industry. As a dynamic integration of industry and trade, we boast cutting-edge international welding processing equipment and a dedicated team of seasoned professionals.
With a decade of unparalleled expertise in crafting high-quality filtration and solid-liquid separation solutions, we promise to deliver excellence every step of the way. Our distinguished product line 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, and Perforated Metals. These are meticulously crafted from a diverse range of superior raw materials like SS304, SS316L, duplex steel, super duplex, Monel 400, and Hastelloy. Our versatile products are indispensable in sectors where the separation of solids from liquids and other solids is crucial, such as water treatment, starch processing, sugar mills, and the pharmaceutical, chemical, and petrochemical industries.
Our state-of-the-art factory is equipped with over ten specialized production lines, each tailored to accommodate a spectrum of custom requirements. Our processes include CNC punching, CNC drilling, precision laser cutting, high-frequency resistance welding, as well as meticulous milling, polishing, and pickling, ensuring every product meets the highest standards of excellence.
At Hebei Slot Filter Technology Co., Ltd., our unwavering mission is to uphold the utmost product quality, continually refine our professional expertise, and innovate groundbreaking products and solutions that address our customers' unique challenges. Our vision is to be the manufacturer of choice, dedicated to delivering tailor-made solutions that foster enduring, mutually beneficial partnerships.
Our commitment is to forge long-term win-win collaborations with our esteemed clients.
As a leading innovator in wedge wire products manufacturing, we pride ourselves on our state-of-the-art workshop facilitation. With cutting-edge equipment, our expert team of skilled craftsmen, and an unwavering commitment to stringent quality control, we ensure each product meets the highest 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