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Vibrating Screen Mesh Classification & Technical Guide
I. Material Classification & Technical Features
1. Elastic Material Screens
Polyurethane (PU) Screen Mesh: Made from TDI/MDI systems, available in cast type and molded type with features:
Abrasion Resistance: Surface hardness Shore A85-95, 3-5x longer lifespan than manganese steel in quartz sand screening.
Self-Cleaning: Open area 35%～50%, elastic modulus ≥120MPa, blinding rate <5%.
Noise Reduction: Dynamic damping coefficient 0.15-0.25, reducing noise by 15-25dB (ISO 4871 compliant).
Rubber Screen Plates: Steel-embedded structure (tensile strength ≥15MPa), ideal for coal classification:
Impact Resistance: Tear strength ≥30kN/m, withstands instant impact ≥500kg·m/s².
Longevity: 4-8x lifespan vs. metal screens in iron ore applications (>12 months).
2. Metal Material Screens
High Carbon/Manganese Steel Mesh: 65Mn or Mn13Cr2 with quenching (HRC45-55), features:
High Load Capacity: Tensile strength ≥1200MPa, suits vibrating intensity ≤8g (e.g., mining linear screens).
Heat Resistance: Operational range -40℃ to 450℃ for hot sinter screening.
Stainless Steel Mesh: 304/316L grades (corrosion resistance ≥ASTM A480), for food/pharma industries:
Anti-Corrosion: Salt spray test ≥720 hours (FDA/EHEDG certified).
Precision Screening: Aperture tolerance ±0.02mm, 20-400 mesh grading.
II. Structural Types & Applications
1. Tensioned Screens
Hook-Tensioned Type:Pre-curved spring steel edges (pre-tension ≥200N/mm), for circular/elliptical screens:
l Quick Replacement: ≤15 minutes per panel, minimizing downtime.
l High Open Area: Square apertures ≥75% open area, +20%～30% throughput.
Bolted Panels: Modular bolt patterns (50mm±0.5mm spacing), for high-frequency screens (>1500rpm):
l Vibration-Proof: Self-locking nuts reduce loosening rate to <0.1%.
2. Modular Screen Panels
PU Modular Panels: 300×600mm panels (±1mm tolerance), horizontal/vertical joint, for trommels:
Anti-Deformation: Flexural modulus ≥300MPa, <0.5mm deflection at 30t/h.
Water-Saving: Self-cleaning nodules cut water usage by 40%.
Rubber-Metal Composite: Rubber overlay (8—12mm) on manganese steel, for construction waste sorting:
Shock Absorption: 60% impact energy absorbed, reducing metal fatigue.
Ⅲ. Application Scenarios & Performance Data
|
Industry |
Recommended Mesh |
Efficiency Gains |
|
Mineral Processing |
Manganese Tensioned Mesh |
+25% throughput, lifespan ≥8 months |
|
Coal Washing |
Rubber+PU Modular |
-70% blinding, +18% moisture removal |
|
Aggregate Screening |
Stainless Bolted Mesh |
±0.5mm grading accuracy, <5% recirculation |
|
Waste Recycling |
Self-Cleaning Piano Wire |
≥85% sludge dewatering, 2x lifespan |
|
Food Processing |
316L Precision Mesh |
≥99.9% powder screening, HACCP compliant |
IV. Customization & Installation
1. Aperture & Open Area Customization
Hole Types: Round (Φ2—100mm), square (2×2-50×50mm), slotted (2—20mm width).
Open Area Optimization: Multi-stage punching or crimped weaving for 25%～85% control.
2. Connection Solutions
Quick-Hook System: 50% faster installation on high-frequency screens.
Modular Slot Design: ±0.2mm alignment for multi-deck screens (≤5 decks).
Smart Monitoring: Optional strain sensors (±0.1% FS) for real-time tension tracking.
V. Quality Assurance & Certifications
Standards Compliance: ISO 9044, GB/T 5330, ASTM E11.
Testing Tech: Laser diffraction (Malvern Mastersizer 3000) & 3D scanning (KEYENCE VR-3000).
Global Approvals: CE, MSHA, WaterMark.
