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Intake Screen
The stainless steel wedge wire slot tube (axial internal wire type, inside-out filtration) is the core precision filtering element in self-cleaning filters (e.g., brush/suction type filters). Its structural feature is that the wedge wires are arranged parallel along the axial direction of the tube and welded (different from traditional circumferential winding), forming precise longitudinal filtration slots. During operation, the liquid to be filtered flows from inside the tube and, driven by pressure, passes from inside to outside through the wedge-shaped slots. Impurities are trapped on the inner wall of the tube, while clean liquid collects and flows out from the exterior.
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Intake Screen
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Application scenarios
Product Features and Advantages
High Precision and Strong Stability: The axially parallel wedge wire structure provides high dimensional stability, preventing slot deformation under pressure fluctuations and ensuring long-term stable filtration accuracy (commonly 25-500 microns).
Efficient Self-Cleaning and Anti-Clogging: Designed specifically for self-cleaning. Internal scraping components (brushes or suction nozzles) can smoothly and completely clean the entire inner surface along the axial direction, with no dead zones, ensuring thorough residue removal and nearly 100% regeneration efficiency.
High Flow Rate and Low Pressure Drop: The short and straight longitudinal flow path, combined with the high open area of the wedge wires, significantly reduces fluid resistance, making it suitable for high-flow filtration.
Exceptional Mechanical Strength: Full circumferential welding of axial wires and support rings creates a robust structure that withstands frequent mechanical scraping and high-pressure backwashing impacts, with no risk of loosening.
Modularity and Long Service Life: Standard modular lengths (e.g., 500mm, 1000mm) facilitate easy replacement and combination. The all-stainless steel construction resists corrosion and wear.
Product Parameters
| Parameter | Typical Specifications |
| Material | 304/316L Stainless Steel (standard), Duplex Steel (highly corrosive environments) |
| Filtration Rating | 25μm, 50μm, 100μm, 200μm, 500μm (customizable to user requirements) |
| Tube Outer Diameter | φ50mm, φ60mm, φ80mm, φ100mm, etc. (compatible with standard filter housings) |
| Standard Length | 500mm, 1000mm, 1500mm (custom lengths available) |
| Slot Structure | Axially parallel wedge wires, continuous longitudinal slots |
Summary
This axial internal wire wedge wire slot tube is the technical core enabling efficient and reliable filtration in self-cleaning filters. Its unique axial structure perfectly aligns with the self-cleaning logic of “inside-out filtration + axial scraping,” ensuring high precision while addressing the shortcomings of traditional filter elements, such as incomplete cleaning and susceptibility to damage. It is particularly suitable for harsh operating conditions with high contamination loads and the need for continuous operation, serving as a critical component for achieving fully automated, low-maintenance filtration.
OUR PRODUCTS
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Starch Screen
The Wedge Wire Starch Curved Screen is a curved screening device specifically designed for the starch industry. It features an arc-shaped screen surface made of precisely welded V-profile stainless steel wires, utilizing centrifugal force or gravity to achieve rapid dewatering and classification of starch slurry. Its curved structure prolongs slurry retention time, improving solid-liquid separation efficiency. It is suitable for starch extraction, refining, and byproduct recovery processes for starches such as potato, corn, and cassava. Characterized by efficient screening, wear and clogging resistance, and easy maintenance, this equipment is a key solid-liquid separation device in modern starch processing.
Rotary Drum
The Stainless Steel Wedge Wire Rotary Drum Screen (also known as a Rotary Drum Strainer or Micro-Screen) is a continuously and automatically operating front-end solid-liquid separation device. Its core component is a large cylindrical drum installed horizontally or at a slight incline. The entire circumferential surface of the drum is covered with a stainless steel wedge wire screen (Johnson screen). The wastewater to be treated flows into one end of the drum. Under gravity, the filtrate passes through the wedge wire slots, while solid suspended matter (such as fibers, hair, plastic pieces, and fine particles) is retained on the inner surface of the drum. As the drum rotates slowly, the retained debris is lifted to the top, where it is flushed by spray water into a collection trough, achieving a continuous process of automatic screening, filtration, and residue removal
Screen Basket for Screw Press Separator
The stainless steel wedge wire screen basket, commonly known as the "V-wire screen," "press screen basket," or "screen cylinder," is a core component of screw press solid-liquid separators. It is installed inside the spiral press, enclosing the rotating screw shaft. The working principle is as follows: raw slurry with high moisture content is pushed into the screen basket by the screw shaft. Under the squeezing and conveying action of the spiral flights, the liquid (filtrate) is forced out through the precise, continuous slots of the screen basket, while the solid material (manure cake) is retained inside and continues to be compressed and dewatered as it moves forward. Finally, the dewatered solids are discharged from the outlet, achieving solid-liquid separation.
Wedge Wire Vibrating Screen
A stainless steel wedge wire vibrating screen is a solid-liquid separation device featuring a screen surface made by precisely welding V-shaped stainless steel wires, integrated with a high-frequency vibration system. With uniform slots, wear resistance, and corrosion resistance, it is suitable for wet screening and dewatering operations. The vibration mechanism enables rapid material dispersion and efficient sieving while effectively preventing screen clogging. Widely used in industries such as mining, metallurgy, food processing, and environmental protection, it is particularly suitable for handling fine particles, high-viscosity, or easily agglomerated materials, offering advantages such as high screening accuracy, large processing capacity, and long service life.
Wedge Wire Water Well Screen
Johnson Deep Water Well Screens, also referred to as continuous slot screens or wire wrap screens, were originally developed to solve sand control challenges in fine-grained and uniform sand formations. These geological conditions are commonly encountered in deep groundwater aquifers, where conventional perforated pipes often suffer from clogging, excessive sand production, and reduced well efficiency.
Sintered Mesh Plate and Disc
Sintered Mesh Plates and Discs are high-precision filtration components fabricated by bonding multiple layers of stainless steel wire mesh through a specialized vacuum sintering process. Unlike traditional mesh that relies on mechanical weaving alone, these plates are fused at every contact point, transforming individual wires into a rigid, integrated porous metal sheet.
These plates can be customized into various shapes, most commonly circular discs, to fit specific industrial equipment. They offer an ideal balance of high permeability, extreme structural integrity, and precise filtration ratings. Because they are made entirely of metal (typically 304 or 316L), they provide a "permanent" filtration solution that can withstand high temperatures and corrosive chemicals while remaining fully cleanable and reusable.
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