Polyurethane Screen Bouncing Ball Screen Self-Cleaning Ball
Polyurethane Screen Bouncing Ball – Anti-Clogging Cleaning Ball for Vibrating Screens Product Overview Our Polyurethane Screen Bouncing Ball is a high-performance self-cleaning media designed for vibrating screens and sifting equipment. As the screen vibrates, these balls bounce...
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Product Introduction
Polyurethane Screen Bouncing Ball – Anti-Clogging Cleaning Ball for Vibrating Screens
Product Overview
Our Polyurethane Screen Bouncing Ball is a high-performance self-cleaning media designed for vibrating screens and sifting equipment. As the screen vibrates, these balls bounce continuously between the screen deck and the bottom panel, striking the screen surface to dislodge trapped particles and prevent blinding.
Simple yet effective – significantly improves screening efficiency and reduces manual cleaning downtime.
How It Works
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Vibrating Screen Motion → Bouncing Balls Impact Screen Surface → Stuck Particles Dislodged → Open Mesh Restored
The elastic polyurethane balls create a continuous pounding action that keeps the screen mesh clean, allowing fine materials to pass through while preventing near-size particles from blocking the openings.
Why Polyurethane Instead of Rubber or Silicone?
| Feature | Polyurethane | Rubber | Silicone |
|---|---|---|---|
| Wear resistance | ★★★★★ | ★★★ | ★★ |
| Rebound elasticity | ★★★★★ | ★★★★ | ★★★★ |
| Tear strength | ★★★★★ | ★★★ | ★★ |
| Oil resistance | ★★★★ | ★★ | ★★★ |
| Flame retardant option | ✓ | ✗ | ✗ |
| Anti-static option | ✓ | ✗ | ✗ |
| Temperature range | -35°C to +85°C | -30°C to +70°C | -50°C to +200°C |
| Cost effectiveness | ★★★★★ | ★★★★ | ★★★ |
Verdict: Polyurethane offers the best combination of wear resistance, rebound, and durability for mining and aggregate screening applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Cast polyurethane elastomer |
| Hardness (Shore A) | 80A – 90A (optimized for bouncing) |
| Rebound resilience | ≥ 60% |
| Tensile strength | ≥ 30 MPa |
| Elongation at break | ≥ 400% |
| Abrasion loss (DIN) | ≤ 35 mm³ |
| Operating temperature | -35°C to +85°C |
| Density | 1.20 – 1.25 g/cm³ |
Special Options
| Option | Specification |
|---|---|
| Flame retardant | UL 94 V-0 / MSHA compliant |
| Anti-static | Surface resistivity ≤ 1×10⁸ Ω |
| Food grade | FDA compliant (on request) |
Available Sizes
| Diameter | Tolerance | Recommended Mesh Opening |
|---|---|---|
| 20 mm (¾") | ± 1.5 mm | 3 – 10 mm |
| 25 mm (1") | ± 1.5 mm | 5 – 15 mm |
| 30 mm (1¼") | ± 2.0 mm | 8 – 20 mm |
| 40 mm (1½") | ± 2.0 mm | 10 – 30 mm |
| 50 mm (2") | ± 2.5 mm | 15 – 40 mm |
Custom sizes (15mm to 80mm) available on request.
Key Advantages
✅ Prevents Screen Blinding
Continuous bouncing action dislodges near-size particles that would otherwise block the mesh openings.
✅ Increases Screening Efficiency
Cleaner screen surface means higher throughput and better separation accuracy.
✅ Extends Screen Life
Reduces the need for manual hammering or scraping, which can damage the screen deck.
✅ Reduces Downtime
Minimizes production stops for manual cleaning – especially valuable in continuous mining or aggregate operations.
✅ Low Noise Operation
Quieter than steel balls or hard plastic cleaners.
✅ Long Service Life
Polyurethane resists wear, tear, and deformation even after millions of impact cycles.
Applications
| Industry | Specific Use |
|---|---|
| Mining | Coal, iron ore, copper, gold screening |
| Aggregates | Sand, gravel, crushed stone classification |
| Asphalt plants | Hot mix aggregate screening |
| Recycling | Construction waste, demolition debris sorting |
| Chemical | Powder and granular material sieving |
| Food processing | Flour, sugar, grain sifting (food grade) |
Recommended Usage Guide
| Screen Type | Ball Diameter | Quantity per m² |
|---|---|---|
| Fine mesh (≤ 5mm opening) | 20 – 25 mm | 40 – 60 pcs |
| Medium mesh (5 – 15mm opening) | 25 – 30 mm | 25 – 40 pcs |
| Coarse mesh (≥ 15mm opening) | 30 – 50 mm | 15 – 25 pcs |
How to Order
Please specify:
Diameter required
Quantity (pieces or kg)
Special requirements (flame retardant / anti-static / food grade)
Screen type and mesh size (for application recommendation)
Quality Assurance
100% polyurethane – no filler or recycled material
Precise diameter tolerance for consistent bouncing action
No surface bubbles or defects
Test reports available upon request (abrasion, rebound, resistivity)
Contact Us
Get a quote or request a free sample. Our engineers can recommend the right blade hardness and design for your conveyor width and material type.
Web: www.chinapuela.com
Mail: zbhjpu@gmail.com
WhatsApp: 8613969341655
Hot Tags: polyurethane screen bouncing ball screen self-cleaning ball, China, manufacturers, factory, buy
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