Trommel Screen
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Low-speed Vibration-free Operation, Low Noise: No vibration exciter, slight machine shake without foundation damage. Lower noise than vibrating screens and stable long-term operation under harsh conditions.
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Tumbling Self-cleaning, Suitable for Dry & Wet Materials: Continuous material tumbling clears mesh automatically, realizing non-clog screening for sticky mud, wet aggregate and humus soil, compatible with both dry and wet materials.
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Multi-section Screens for One-step Multi-grade Separation: 1–4 sections of screens with different apertures are available, one machine separates multiple material sizes to save extra screening equipment cost.
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Heavy Wear-resistant Drum with Large Throughput: Thickened steel drum and wear-resistant perforated screen plates support 0.5–350t/h throughput, accepting heavy feeding of large raw ore and construction waste.
1. Product Overview
Trommel Screen, also named rotary drum screen, is a low-speed cylindrical screening machine with slightly inclined drum without high-frequency vibration. It realizes classification of dry and wet materials via drum tumbling. The drum can be fitted with multi-section screens of different apertures, equipped with self-cleaning function to avoid mesh blinding. Featuring robust structure and stable operation, it is suitable for coarse screening of large-particle & high-moisture mixed materials including aggregate, ore, solid waste, coal and organic fertilizer. Fixed and mobile types are optional, widely used as pre-screening equipment for crushing and waste recycling lines.
2. Detailed Description
Motor and reducer drive the cylinder to rotate at low uniform speed. Materials enter the drum from feeding end, lifted by inner wall then fall down to realize continuous tumbling and dispersion. Fine materials smaller than mesh size pass through screens for collection, while lumpy materials roll to discharge outlet along inclined drum. Repeated tumbling ejects particles stuck in mesh holes; external cleaning brush further prevents clogging. Variable frequency speed regulation and adjustable drum inclination control throughput and screening precision flexibly.
3. Materials
River pebble, limestone, weathered muddy ore, raw coal, coal gangue, construction waste, muck, organic fertilizer, municipal solid waste, aggregate mixture, clay, bark & straw and other lumpy, wet muddy mixed materials.
4. Why Choose Us
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Rotary drum screening, integrated feeding, conveying and grading: Low-speed rotary cylinder tumbles and conveys materials forward; coarse and fine materials separate through screen holes automatically. Seamlessly matched with crushers and belt conveyors for continuous production.
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Internal lifting plates for self-cleaning, anti-blinding for wet sticky materials: Built-in lifting plates keep materials tumbling constantly to avoid mud adhesion and mesh blinding. Lump impurities discharge from the drum tail to cut shutdown cleaning time.
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Accept extra-large lump feed, high-capacity primary pretreatment: Spacious inner cavity handles large lumps of stone, coal, construction waste and organic fertilizer. High throughput removes fine mud in advance to reduce crusher burden.
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Segmented modular drum, replaceable screens for customized grading: Segmented spliced drum with detachable screens of various apertures for multi-size separation. Thick wear-resistant steel drum resists impact and deformation under heavy solid waste and aggregate working conditions.
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Low-speed rotation with low impact, less dust and less auxiliary wear: Mechanical rotary operation without high-frequency vibration reduces material impact and dust emission. Gentle force lowers abrasion on frame and bearings, extending service life of matched conveying equipment.
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Side-open design for easy inspection, low maintenance under harsh conditions: Full-access side inspection doors allow direct maintenance of screens, bearings and drive units without full disassembly. Long-life wear liners only require regular greasing, cost-effective for long-term mine and solid waste production.
5. Specifications & Technical Data
| English Item | Standard Spec |
| Sieving Efficiency | 70%~90% |
| Driving Mode | Motor + Cycloidal Reducer Drive |
| Speed Control | Optional VFD Speed Regulation |
| Optional Screen Mesh Material | Carbon Steel / Mn Steel / SS304 |
| Anti-clogging Principle | Material self-rolling to release stuck particles |
| Sealing Structure | Fully enclosed dust-proof cover |
| Operating Noise | ≤72dB |
| Vibration Level | Vibration-free operation |
| Power Supply | 380V/50Hz |
| Warranty Period | 1-year whole machine, 6-month screen mesh |
| English Parameter | GTS1015 | GTS1020 | GTS1225 | GTS1530 | GTS1545 | GTS1848 | GTS2060 |
| Model No. | GTS1015 | GTS1020 | GTS1225 | GTS1530 | GTS1545 | GTS1848 | GTS2060 |
| Drum Diameter (mm) | 1000 | 1000 | 1200 | 1500 | 1500 | 1800 | 2000 |
| Drum Length (mm) | 1500 | 2000 | 2500 | 3000 | 4500 | 4800 | 6000 |
| Drum Inclination Angle (°) | 6~10 | 6~10 | 6~10 | 6~10 | 6~10 | 6~10 | 6~10 |
| Drum Rotation Speed (r/min) | 28~35 | 26~32 | 24~30 | 18~24 | 16~22 | 12~18 | 10~15 |
| Standard Screen Aperture (mm) | 2~100 | 2~100 | 2~100 | 5~120 | 5~120 | 8~150 | 10~180 |
| Max Feed Particle Size (mm) | ≤300 | ≤300 | ≤350 | ≤400 | ≤400 | ≤500 | ≤600 |
| Standard Processing Capacity (t/h) | 40~60 | 80~120 | 140~180 | 220~300 | 320~420 | 420~550 | 600~900 |
| Matching Motor Power (kW) | 3 | 4 | 5.5 | 7.5 | 11 | 18.5 | 22 |
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