Overview
The Rotary Screen (Trommel Screen) is a mechanical sizer that separates materials by particle size.
Comprising a motor, reducer, drum, and frame, it offers high capacity 60-1000t/h, reliable anti-clogging performance,smooth operation, and easy maintenance for wood, mining,coal, chemical industries.
Drum screens are primarily used for the classification and screening of crushed materials. If you require preliminary crushing of your raw materials, please explore our [Wood Chipper] product series.
Working Principle
Unlike flip flow screens, the working principle of a rotary drum screen is as follows: as material enters the rotating drum, it tumbles and slides—driven by the drum’s inclination and centrifugal force—allowing properly sized particles to pass through the screen apertures while larger particles are separated at the discharge end. A self-cleaning design helps minimize screen aperture clogging.
Key Features
Multi-Layer Screening | 60-1000 T/H
Durable Design | Quick Screen Changes
Sealed operation | No dust, Low noise
Application
| Industry Field | Specific Application |
|---|---|
| 🏗️ Sand & Mining | Classify stones by size, or separate soil and stone powder |
| 🏖️ Sand & Gravel Yard | Separate sand from stones |
| ⛏️ Coal Industry | Separate lump coal from coal fines, or use in coal washing processes |
| 🧪 Chemical & Mineral Processing | Classify lump materials by size, separate powdery substances |
| 🌱 Compound Fertilizer Production | Separate finished product from returned materials, and uniformly classify the finished product |
| ♻️ Waste Treatment | Sort waste by particle size |
Are you struggling with these points?
| Industry | Most Prominent Pain Point | Secondary Pain Point |
|---|---|---|
| ⛏️ Mining | Low screening accuracy for fine particles (0-5mm mixture) | Rapid screen wear; relatively high energy consumption |
| ⛏️ Coal | Severe wet coal adhesion leading to equipment shutdown | Low screening efficiency causing downstream overload; difficult manual cleaning |
| 🧪 Chemical | Screen clogging due to high material moisture | Transmission component failures (shaft breakage, roller jamming); high maintenance cost |
Key Solutions
| Pain Point | Solution Approach | Example Effect |
|---|---|---|
| Screen Clogging | Install high-pressure spray or automatic air cannon cleaning system | Achieved “one-key automatic cleaning” (patented); full-coverage efficient blow cleaning |
| Low Efficiency | Optimize aperture matching (1.2-1.5x target size); adjust speed (15-30r/min) & angle (3°-8°) | Screening efficiency can be increased to over 85% |
| High Maintenance | Use wear-resistant materials (manganese steel/polyurethane screen); establish regular inspection/replacement schedule | Polyurethane screen improves wear resistance by 30%+; saved annual electricity costs by up to 780,000 yuan in a power plant case |
Certificates
