High-Frequency PU Fine Screen with 0.1mm Aperture 35% Open Area for Vibrating Machines 1040x700mm

High-grade polyurethane raw materials, including pre-polymers and curing agents, are meticulously selected based on abrasion resistance and elasticity requirements. Additives such as UV stabilizers and anti-aging agents are blended to enhance longevity in harsh environments.

Precision CNC-machined molds are crafted from stainless steel or aluminum, incorporating the exact aperture geometry (e.g., 0.045mm wedge-shaped slots). Mold surfaces are polished to a mirror finish to ensure smooth demolding and dimensional accuracy.

The liquid polyurethane mixture is vacuum-degassed to eliminate air bubbles. It is then poured into preheated molds and subjected to controlled-temperature curing (80-120°C) in hydraulic presses. This step ensures uniform density and structural integrity. Post-curing thermal treatment further enhances tensile strength and chemical resistance.

Cured screens are carefully demolded, and excess flash is removed using laser trimming or precision cutting tools. Edge sealing is applied to prevent delamination during high-frequency vibrations.

Aperture Verification: Laser scanners measure aperture sizes (e.g., 0.045mm ±0.005mm) and open area ratios (35%-40%). Durability Testing: Simulated high-frequency vibration cycles (up to 3,600 RPM) assess fatigue resistance. Material Certification: Shore hardness (85-95A), tear strength, and chemical compatibility are validated per ISO 9001 standards.

Anti-static coatings or custom-colored finishes are applied for specific industrial requirements, such as explosive environments or visual inspection needs.

Screens are packed in moisture-proof, shock-absorbent materials and labeled for traceability. Custom sizes and OEM branding are accommodated seamlessly.