Bolt-on Polyurethane Screen Panel with Material Retaining Strip

Core Advantages

1. Built-in Baffle Strip Design to Eliminate Side Leakage

• Superior Sealing and Leak-Proof Performance: The high-elasticity polyurethane baffle strips (sealing skirts) extending from both sides or ends of the screen panel enable tight flexible lap joints when multiple panels are installed side by side. This design effectively fills the physical gaps between panels, fundamentally eliminating the leakage and splashing of fine materials, slurry, or dust from the sides, significantly improving material recovery rates and on-site environmental standards.

• Precise Flow Guiding Function: The raised baffle strips also serve as effective flow guides and limiters, preventing large materials from rushing off the screen surface edges under intense vibration, ensuring orderly screening operations.

2. Rigid Bolt Fixing for Extremely Stable Operation

• Reliable Connection Method: Utilizing a standardized design with pre-embedded steel plates or reinforced bolt holes, high-strength bolts firmly lock the screen panel onto the screen support beam. Compared to rail or tension-mounted installations, bolt fixing can withstand greater material impact and exciting forces, completely eliminating the risk of panel loosening or detachment under high-frequency vibration.

• Wide Compatibility: Perfectly compatible with the vast majority of medium-to-heavy screen panel interfaces that use bolt compression fixing on the market, making replacement and upgrades extremely convenient.

3. Superior Wear Resistance and Anti-Blocking for Enhanced Screening Efficiency

• Excellent Physical Properties: Made of premium wear-resistant polyurethane, its abrasion resistance is 3-5 times that of ordinary rubber and 5-8 times that of metal screens such as high-manganese steel. Under continuous scouring from highly abrasive materials like ores and coal, it offers an extremely long service life.

• Efficient Self-Cleaning Capability: Polyurethane material possesses excellent elasticity (second harmonic vibration characteristics), generating high-frequency micro-vibrations during operation. Combined with a well-designed inverted tapered screen opening, it effectively shakes off adhering moist and sticky fine particles, fundamentally solving the blockage problem.

4. Vibration Damping, Noise Reduction, Lightweight and Energy Saving

• Excellent Shock Absorption and Noise Reduction: The inherent damping characteristics of polyurethane effectively absorb impact energy from material falling and machine operation, reducing operating noise by 15-25 decibels compared to traditional metal screens, significantly improving the workshop working environment.

• Reduced Operating Energy Consumption: With a density only about 1/7 that of steel, the panels are extremely lightweight. While ensuring high mechanical strength, they significantly reduce the machine’s operational load, effectively saving electrical energy consumption during operation.

Technical Parameters

• Material: High-performance wear-resistant polyurethane elastomer + built-in high-strength metal framework (steel plate / steel wire)

• Installation Method: Bolt-through hole fixing (compatible with various standard bolt compression interfaces)

• Structural Features: Modular screen panel + side/end integrated baffle strips (sealing skirts)

• Screen Opening Specifications: 0.1mm – 50mm (slot, square hole, round hole, and irregular hole customization supported)

• Hardness Range: Shore 85A – 92A (balancing elasticity and wear resistance requirements)

• Temperature Range: -30℃ to 80℃ (normal operating conditions; special formulations can withstand higher temperatures)

Application Areas

Widely used in mining beneficiation (classification and dewatering of iron ore, gold ore, copper ore, etc.), coal washing (raw coal classification, clean coal desliming), sand and gravel aggregate plants (mechanized sand classification and fine sand recovery), as well as solid-liquid separation and precision filtration operations in chemical, building materials, and power industries. Particularly suitable for various medium and heavy-duty vibrating screening equipment with extremely high requirements for overall stability, side leakage prevention, and sealing performance.