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Unlike woven mesh with limited hole shapes, it offers diverse hole patterns (round, square, hexagonal, slotted) and customizable hole sizes (1mm-100mm), adapting to specific throughput and separation needs. Constructed from carbon steel, stainless steel, or aluminum, it withstands mechanical impact and chemical corrosion, with service life 3-4 times longer than wire mesh in heavy-duty applications.
Diverse Hole Patterns & Sizes: Hole diameters from 1mm to 100mm and hole spacing from 2mm to 50mm, with ±0.1mm dimensional tolerance. Round holes (most common) maximize open area (up to 50%) for high throughput; hexagonal holes enhance structural strength (20% higher than round holes) for load-bearing applications. Slotted holes (width 1-10mm) suit elongated particle separation (e.g., wood chips).
High Structural Strength: Material thickness 0.5mm-10mm, with tensile strength up to 600 MPa (carbon steel variants). A 5mm-thick 304 stainless steel screen with 20mm round holes supports 500 kg/m² load without bending. Laser-cut edges (no burrs ＞0.01mm) prevent material snagging and screen wear.
Corrosion & Wear Resistance: 316L stainless steel resists saltwater and acidic media (pH 2-13) with corrosion rate < 0.01mm/year; galvanized carbon steel offers cost-effective rust resistance (zinc coating thickness 60μm) for outdoor applications. Abrasion-resistant steel (AR400) variants extend service life by 60% in mining screening.
Customizable Dimensions & Finishes: Max size up to 4000mm × 2000mm (laser cutting) or 1200mm × 3000mm (punching). Surface finishes include powder coating (color options, UV-resistant), electro-polishing (Ra < 0.2μm for food contact), and hot-dip galvanizing (for outdoor corrosion protection).
Mining Screening: Ore classification and gangue removal. A Chilean copper mine used 10mm round-hole AR400 perforated screens, achieving 95% particle separation (10mm+ gangue removed) and reducing downstream crusher wear by 35%. The screens lasted 12 months vs. 3 months for wire mesh.
Architectural Protection: Safety screens for building facades and equipment enclosures. A Singapore high-rise used 3mm-thick aluminum perforated screens (5mm square holes) for balcony railings, meeting wind load standards (1.5 kN/m²) and providing 30% sun shading.
Industrial Filtration: Fuel and oil straining in machinery. A manufacturing plant used 2mm slotted-hole 316L screens for hydraulic oil filtration, removing 98% of 5μm+ metal shavings and extending hydraulic pump life by 2 years. The screens’ high open area (45%) ensured low pressure drop (< 5 psi).
Q: Punching vs. laser cutting—which is better?
A: Punching is cost-effective for high-volume, standard holes (≥3mm diameter, thickness ≤6mm); laser cutting suits precision holes (≤1mm diameter, ±0.01mm tolerance) and complex patterns. Laser cutting avoids material deformation for thin sheets (<1mm), while punching is faster for 1000+ units.
Q: What hole size fits 20mm aggregate screening?
A: 22mm round holes are standard (2mm allowance for particle shape). For angular aggregates (e.g., crushed stone), use 25mm holes to prevent clogging; for rounded aggregates (e.g., river gravel), 22mm holes ensure accurate classification (oversize removal rate 99%).
Q: Can perforated screens be curved or formed?
A: Yes, carbon steel and aluminum screens can be rolled into cylinders (minimum radius 100mm) or bent into U-shapes. 316L stainless steel requires heat treatment before forming to avoid cracking. Formed screens maintain hole dimensional tolerance within ±0.2mm.
Q: How to clean clogged perforated screens?
A: For dry materials, use compressed air (6-8 bar) or a brush; for wet/clayey materials, use high-pressure water (15-20 bar) with rotating nozzles. For stubborn clogs, soak in 10% citric acid solution (for mineral deposits) or 5% detergent (for organic matter) for 1 hour—this restores 97% of throughput.
Unlike woven mesh with limited hole shapes, it offers diverse hole patterns (round, square, hexagonal, slotted) and customizable hole sizes (1mm-100mm), adapting to specific throughput and separation needs. Constructed from carbon steel, stainless steel, or aluminum, it withstands mechanical impact and chemical corrosion, with service life 3-4 times longer than wire mesh in heavy-duty applications.
Diverse Hole Patterns & Sizes: Hole diameters from 1mm to 100mm and hole spacing from 2mm to 50mm, with ±0.1mm dimensional tolerance. Round holes (most common) maximize open area (up to 50%) for high throughput; hexagonal holes enhance structural strength (20% higher than round holes) for load-bearing applications. Slotted holes (width 1-10mm) suit elongated particle separation (e.g., wood chips).
High Structural Strength: Material thickness 0.5mm-10mm, with tensile strength up to 600 MPa (carbon steel variants). A 5mm-thick 304 stainless steel screen with 20mm round holes supports 500 kg/m² load without bending. Laser-cut edges (no burrs ＞0.01mm) prevent material snagging and screen wear.
Corrosion & Wear Resistance: 316L stainless steel resists saltwater and acidic media (pH 2-13) with corrosion rate < 0.01mm/year; galvanized carbon steel offers cost-effective rust resistance (zinc coating thickness 60μm) for outdoor applications. Abrasion-resistant steel (AR400) variants extend service life by 60% in mining screening.
Customizable Dimensions & Finishes: Max size up to 4000mm × 2000mm (laser cutting) or 1200mm × 3000mm (punching). Surface finishes include powder coating (color options, UV-resistant), electro-polishing (Ra < 0.2μm for food contact), and hot-dip galvanizing (for outdoor corrosion protection).
Mining Screening: Ore classification and gangue removal. A Chilean copper mine used 10mm round-hole AR400 perforated screens, achieving 95% particle separation (10mm+ gangue removed) and reducing downstream crusher wear by 35%. The screens lasted 12 months vs. 3 months for wire mesh.
Architectural Protection: Safety screens for building facades and equipment enclosures. A Singapore high-rise used 3mm-thick aluminum perforated screens (5mm square holes) for balcony railings, meeting wind load standards (1.5 kN/m²) and providing 30% sun shading.
Industrial Filtration: Fuel and oil straining in machinery. A manufacturing plant used 2mm slotted-hole 316L screens for hydraulic oil filtration, removing 98% of 5μm+ metal shavings and extending hydraulic pump life by 2 years. The screens’ high open area (45%) ensured low pressure drop (< 5 psi).
Q: Punching vs. laser cutting—which is better?
A: Punching is cost-effective for high-volume, standard holes (≥3mm diameter, thickness ≤6mm); laser cutting suits precision holes (≤1mm diameter, ±0.01mm tolerance) and complex patterns. Laser cutting avoids material deformation for thin sheets (<1mm), while punching is faster for 1000+ units.
Q: What hole size fits 20mm aggregate screening?
A: 22mm round holes are standard (2mm allowance for particle shape). For angular aggregates (e.g., crushed stone), use 25mm holes to prevent clogging; for rounded aggregates (e.g., river gravel), 22mm holes ensure accurate classification (oversize removal rate 99%).
Q: Can perforated screens be curved or formed?
A: Yes, carbon steel and aluminum screens can be rolled into cylinders (minimum radius 100mm) or bent into U-shapes. 316L stainless steel requires heat treatment before forming to avoid cracking. Formed screens maintain hole dimensional tolerance within ±0.2mm.
Q: How to clean clogged perforated screens?
A: For dry materials, use compressed air (6-8 bar) or a brush; for wet/clayey materials, use high-pressure water (15-20 bar) with rotating nozzles. For stubborn clogs, soak in 10% citric acid solution (for mineral deposits) or 5% detergent (for organic matter) for 1 hour—this restores 97% of throughput.
