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: 304, 304L, 316, 316L, 321, 310S, Duplex steel, Hastelloy, Titanium alloy, etc. Our stock is robust with these premium materials, ensuring you benefit from excellent pricing and the swiftest delivery times.
- Tube diameter: 0.5"-60". We offer flexibility for larger pipe diameters upon request, with regular sizes readily available and in stock for your convenience.
- Tube length: Available in 0.3 m, 0.6 m, 1 m, 2 m, 3 m, and 6 m lengths, with the capability to customize to special sizes, catering to your specific project requirements.
- Slot size: 0.02-2.5 mm, precisely tailored to fit your filtration needs.
- Surface profile type: Triangle wire, designed for superior strength and durability.
- Support profile: Choose from Triangular (V-shaped, wedge), round rod, flat bar, water-drop, and square wire, each offering distinct advantages for your project.
- End Types: Options include welding rings, welding threaded joints, welding flange, welding clasp, and more to suit diverse application needs.
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 shipment, each product is meticulously measured and tested against stringent quality parameters to ensure it aligns perfectly with your custom requirements, guaranteeing satisfaction and performance.
- Resistant to Blockage
Crafted with a unique V-shaped wire design, our screen's exterior opening is narrower than the interior, greatly minimizing the risk of clogging and ensuring uninterrupted flow.
- Precision Uniform Slot
With meticulous precision, our CNC machine tools maintain a consistently even gap between wires, ensuring a flawless uniformity in slot size.
- Exceptional Corrosion Resistance
Constructed with premium Stainless Steel 304, renowned for its superior ability to resist corrosion, ensuring longevity and durability.
- Optimized Large Flow Rate
- Engineered for efficiency, this screen pipe boasts minimal resistance and a significantly expanded flow area compared to similar-sized plastic filters, facilitating a higher flow rate. This efficiency means fewer filter elements are needed without sacrificing performance.
- Customizable Gap Settings
- Tailored to diverse user needs, our screen accommodates various filtration equipment and media by allowing adjustable gaps between the stainless steel trapezoidal wires, thanks to its continuous welding process.
Excellence in Machining Welding Process
Our uncompromising quality control process guarantees a product of exceptional reliability, meeting the industry's most stringent standards with every unit delivered.
Our products are extensively utilized in a myriad of applications including filtration, screening, dehydration, sewage treatment, and other crucial equipment, delivering unparalleled performance and reliability.
- Water Treatment
- Our versatile wedge wire screen tubes serve as exceptional filters and separators, adept at removing suspended solids and particulates from water. They are indispensable in drinking water treatment, wastewater purification, and industrial water processing, ensuring pristine water quality.
- In the realm of desalination, descaling, and water softening systems, our products excel as a filtration medium, significantly enhancing treatment efficacy and performance.
- Chemical
- Our wedge wire screen tubes are integral components in chemical processing equipment like reactors, distillation towers, and centrifuges. They facilitate efficient liquid-solid separation, ensuring optimal process operations.
- For sterile filtration needs in the pharmaceutical and food processing industries, our products guarantee product purity and safety, adhering to the highest standards of quality control.
- Mining
- In mining and coal washing operations, our solutions are pivotal for solid-liquid separation and filtration, enabling the efficient extraction of concentrates from slurry, enhancing resource yield.
- Our products are expertly designed for the extraction and filtration of slurry from tailings ponds, ensuring environmental compliance and sustainability.
- Oil & Gas
- In the oil and gas sector, our premium filters excel in drilling, oil extraction, and pipeline transportation, meticulously separating oil, water, and impurities to enhance operational efficiency.
- They provide precision filtration in processing units, ensuring the highest product quality standards in the oil and gas industry.
- Power
- In power generation, our filters are essential for turbine generators and boilers, effectively eliminating suspended solids and impurities from water, safeguarding equipment longevity and performance.
- Our filtration solutions play a critical role in nuclear power plant cooling water systems, ensuring safe, dependable, and efficient plant operations.

Hebei Slot Filter Technology Co., Ltd. Established in 2014, Hebei Slot Filter Technology Co., Ltd. stands as a beacon of innovation and quality in the industry. With a seamless integration of trade and industry expertise, our company is equipped with cutting-edge international welding processing equipment and a team of seasoned professionals dedicated to excellence.
Boasting a decade of unparalleled expertise in the production of high-quality filtration and solid-liquid separation products, we pride ourselves on delivering superior products and exceptional service. Our extensive range 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 Metal, and more. Crafted from an array of premium raw materials like SS304, SS316L, duplex steel, super duplex, Monel 400, and Hastelloy, our products are indispensable in industries requiring precise solids and liquids separation, including water treatment, starch processing, sugar mills, pharmaceuticals, chemicals, petrochemicals, and beyond.
Our state-of-the-art factory houses over ten specialized production lines, utilizing diverse manufacturing processes such as CNC punching, CNC drilling, laser cutting, high-frequency resistance welding, milling, polishing, pickling, and more, to cater to your every customization need.
Our unwavering commitment to excellence drives us to meticulously control product quality, elevate our professional skills, and innovate solutions tailored to the unique needs of our clients. We aim to be a forward-thinking manufacturer focused on solution-based offerings, paving the way for mutual success and enduring partnerships.
Join us in a journey of long-term, win-win cooperation with our esteemed customers.
At Hebei Slot Filter Technology Co., Ltd., we pride ourselves on being a distinguished manufacturer and supplier of superior wedge wire products. Our operations boast a meticulously organized workshop, state-of-the-art equipment, and a team of highly skilled artisans. Coupled with our rigorous quality control system, we ensure that every product we deliver 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