Roll-Cylindrical Polyurethane Trommel Screen Panel

Core Advantages

1. Curved Seamless Fit with Strong Structural Integrity

• Precision Fit to Drum: Using a pre-curved rolling forming process, the screen panel perfectly conforms to the drum of the rotary screen, eliminating the risk of stress cracking caused by forcibly bending flat panels.

• Modular Seamless Splicing: After curved splicing, multiple panels fit tightly together to form a continuous, smooth cylindrical screening surface. This not only effectively prevents material jamming or leakage at the joints but also significantly enhances the overall structural stability and dynamic balance performance of the drum during high-speed rotation.

2. Superior Wear Resistance and Anti-Blocking for Double Screening Efficiency

• Excellent Wear Resistance: 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 manganese steel. Under continuous scouring from highly abrasive materials like ores and aggregates, it offers an extremely long service life, greatly reducing equipment downtime for replacements.

• Efficient Self-Cleaning Anti-Blocking: Polyurethane material possesses excellent elasticity (second harmonic vibration characteristics), generating high-frequency micro-vibrations during drum rotation to effectively shake off adhering moist and sticky fine particles. Combined with a well-designed screen opening (e.g., inverted tapered holes), it fundamentally solves the blockage problem, increasing throughput by over 20%.

3. 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 drum rotation, 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 overall rotational load of the drum, effectively saving electrical energy consumption during operation.

4. Corrosion and Weather Resistance, Adaptable to Harsh Conditions

• Excellent Chemical Stability: Possesses extremely strong resistance to oil, acids and alkalis, hydrolysis, and aging. Whether in humid sand-washing environments or highly corrosive chemical beneficiation processes, it maintains stable performance without cracking or premature aging.

• Wide Temperature Range Operation: The standard formulation can operate stably in environments ranging from -30℃ to 80℃, with special formulations available to withstand more extreme temperature variations.

Technical Parameters

• Material: High-performance wear-resistant polyurethane elastomer (polyester or hydrolysis-resistant polyether type available depending on operating conditions)

• Installation Method: Curved modular splicing (compatible with bolt fixing, side rail, or pin connection interfaces)

• 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 (sand classification and washing), as well as rotary screening equipment in building materials, chemical, and environmental protection industries. Particularly suitable for wet or dry screening operations with extremely high requirements for wear resistance, anti-blocking performance, and screening accuracy.