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The Reverse-Wound Wire Filter Screen utilizes inverse-direction winding of trapezoidal wire around support rods, creating a dense, uniform filtration surface—this reverse winding (clockwise around the rod vs. counterclockwise for standard screens) increases wire overlap by 20%, enhancing fine particle retention. The trapezoidal wire (top width 0.5mm, bottom width 1.2mm) ensures gap stability, avoiding deformation under pressure. This design optimizes particle retention while minimizing flow resistance, suitable for precision solid-liquid separation in pharmaceutical and electronics industries where high purity (＞99.9%) is required.
Uniform Gap: Winding tolerance within ±0.01mm ensures consistent 99.98% particle capture efficiency. For pharmaceutical injectable solution filtration (target particle size 0.22μm), the 0.2μm gap screen achieves 99.99% removal of bacteria and particles, complying with USP Chapter <788> standards. Gap uniformity is verified via laser scanning, with 100% inspection before shipment.
High Mechanical Strength: Welded joints withstand 100 psi differential pressure without deformation. The support rods (diameter 3mm) are spaced 20mm apart, providing uniform support to the wound wire—even under 100 psi pressure, gap variation is < 0.005mm. This ensures stable filtration in high-pressure systems like hydraulic oil circuits.
Easy Cleaning: Smooth wire surface allows complete impurity removal via ultrasonic cleaning. A 30-minute ultrasonic treatment (frequency 40kHz, power 600W) removes 99% of adsorbed particles (0.1-1μm) without damaging the screen. For oil-based impurities, pre-washing with isopropyl alcohol (IPA) enhances cleaning efficiency.
Material Versatility: Available in PTFE-coated stainless steel for high-purity applications. The PTFE coating (thickness 20-30μm) is non-stick and chemical-resistant, suitable for filtration of aggressive fluids like strong acids (e.g., nitric acid) and organic solvents (e.g., acetone). Food-grade 316L stainless steel variants meet FDA and EU 10/2011 standards for food contact.
Pharmaceuticals: Sterile filtration of injectable solutions, meeting FDA standards. A pharmaceutical factory used this screen in its penicillin production line, achieving 99.99% sterility and reducing product rejection rate by 5%. It is also used for vaccine filtration, with no adsorption of protein active ingredients (adsorption rate < 0.1%).
Electronics: PCB cleaning fluid filtration (removing 5μm+ particles). In a PCB manufacturing plant, the screen filtered isopropyl alcohol cleaning fluid, reducing particle contamination on PCB surfaces by 90% and improving soldering yield by 8%. It is compatible with common electronics cleaning fluids (e.g., ethanol, trichloroethylene).
Lithium Battery Industry: Electrolyte purification in new energy production. For lithium-ion battery electrolyte (LiPF6 in EC/DEC solvent), the screen removes metal impurities (Fe, Cu, Ni < 0.1ppm) and particulate matter, enhancing battery cycle life (from 1000 cycles to 1200 cycles) and reducing internal resistance by 15%.
Q: What’s the difference between reverse-wound and standard screens?
A: Reverse-winding increases surface density by 30%, enhancing fine particle retention. Standard screens have a single-layer winding with 0.1mm gap variation, while reverse-wound screens use double-layer overlapping winding, reducing gap variation to ±0.01mm. In electronics fluid filtration, reverse-wound screens remove 99.9% of 1μm particles vs. 95% for standard screens.
Q: Can it be sterilized?
A: Yes, it withstands autoclaving at 121°C for 30 minutes. Autoclaving at 121°C and 15 psi (saturated steam) achieves complete sterilization, with no change in gap size or material properties after 50 sterilization cycles. For pharmaceutical applications, it can also be sterilized via gamma radiation (25-30 kGy) without degradation.
Q: What’s the maximum custom length?
A: Up to 3 meters with no loss of filtration uniformity. For longer applications (e.g., 5-meter industrial filter vessels), multiple 3-meter screens can be connected via stainless steel adapters with sealed gaskets, ensuring consistent filtration across the entire length. Custom widths (100-1000mm) are also available to match filter housing dimensions.
Q: Is it compatible with high-viscosity fluids?
A: Yes, its smooth surface and high open area (30%+) minimize flow resistance for high-viscosity fluids (up to 1000 cP). In a lithium battery electrolyte plant, it filtered electrolyte with viscosity 800 cP at 25°C, maintaining a flow rate of 15 L/min—this is 20% higher than standard woven screens.
The Reverse-Wound Wire Filter Screen utilizes inverse-direction winding of trapezoidal wire around support rods, creating a dense, uniform filtration surface—this reverse winding (clockwise around the rod vs. counterclockwise for standard screens) increases wire overlap by 20%, enhancing fine particle retention. The trapezoidal wire (top width 0.5mm, bottom width 1.2mm) ensures gap stability, avoiding deformation under pressure. This design optimizes particle retention while minimizing flow resistance, suitable for precision solid-liquid separation in pharmaceutical and electronics industries where high purity (＞99.9%) is required.
Uniform Gap: Winding tolerance within ±0.01mm ensures consistent 99.98% particle capture efficiency. For pharmaceutical injectable solution filtration (target particle size 0.22μm), the 0.2μm gap screen achieves 99.99% removal of bacteria and particles, complying with USP Chapter <788> standards. Gap uniformity is verified via laser scanning, with 100% inspection before shipment.
High Mechanical Strength: Welded joints withstand 100 psi differential pressure without deformation. The support rods (diameter 3mm) are spaced 20mm apart, providing uniform support to the wound wire—even under 100 psi pressure, gap variation is < 0.005mm. This ensures stable filtration in high-pressure systems like hydraulic oil circuits.
Easy Cleaning: Smooth wire surface allows complete impurity removal via ultrasonic cleaning. A 30-minute ultrasonic treatment (frequency 40kHz, power 600W) removes 99% of adsorbed particles (0.1-1μm) without damaging the screen. For oil-based impurities, pre-washing with isopropyl alcohol (IPA) enhances cleaning efficiency.
Material Versatility: Available in PTFE-coated stainless steel for high-purity applications. The PTFE coating (thickness 20-30μm) is non-stick and chemical-resistant, suitable for filtration of aggressive fluids like strong acids (e.g., nitric acid) and organic solvents (e.g., acetone). Food-grade 316L stainless steel variants meet FDA and EU 10/2011 standards for food contact.
Pharmaceuticals: Sterile filtration of injectable solutions, meeting FDA standards. A pharmaceutical factory used this screen in its penicillin production line, achieving 99.99% sterility and reducing product rejection rate by 5%. It is also used for vaccine filtration, with no adsorption of protein active ingredients (adsorption rate < 0.1%).
Electronics: PCB cleaning fluid filtration (removing 5μm+ particles). In a PCB manufacturing plant, the screen filtered isopropyl alcohol cleaning fluid, reducing particle contamination on PCB surfaces by 90% and improving soldering yield by 8%. It is compatible with common electronics cleaning fluids (e.g., ethanol, trichloroethylene).
Lithium Battery Industry: Electrolyte purification in new energy production. For lithium-ion battery electrolyte (LiPF6 in EC/DEC solvent), the screen removes metal impurities (Fe, Cu, Ni < 0.1ppm) and particulate matter, enhancing battery cycle life (from 1000 cycles to 1200 cycles) and reducing internal resistance by 15%.
Q: What’s the difference between reverse-wound and standard screens?
A: Reverse-winding increases surface density by 30%, enhancing fine particle retention. Standard screens have a single-layer winding with 0.1mm gap variation, while reverse-wound screens use double-layer overlapping winding, reducing gap variation to ±0.01mm. In electronics fluid filtration, reverse-wound screens remove 99.9% of 1μm particles vs. 95% for standard screens.
Q: Can it be sterilized?
A: Yes, it withstands autoclaving at 121°C for 30 minutes. Autoclaving at 121°C and 15 psi (saturated steam) achieves complete sterilization, with no change in gap size or material properties after 50 sterilization cycles. For pharmaceutical applications, it can also be sterilized via gamma radiation (25-30 kGy) without degradation.
Q: What’s the maximum custom length?
A: Up to 3 meters with no loss of filtration uniformity. For longer applications (e.g., 5-meter industrial filter vessels), multiple 3-meter screens can be connected via stainless steel adapters with sealed gaskets, ensuring consistent filtration across the entire length. Custom widths (100-1000mm) are also available to match filter housing dimensions.
Q: Is it compatible with high-viscosity fluids?
A: Yes, its smooth surface and high open area (30%+) minimize flow resistance for high-viscosity fluids (up to 1000 cP). In a lithium battery electrolyte plant, it filtered electrolyte with viscosity 800 cP at 25°C, maintaining a flow rate of 15 L/min—this is 20% higher than standard woven screens.
