What Is a Heavy Duty Trommel Screen Machine
A Heavy Duty Trommel Screen Machine, also called a rotary trommel screen or drum screening machine, is used for size classification of bulk materials in mining, aggregate, and waste recycling industries. It separates materials based on particle size and is commonly applied in continuous screening processes.
The machine consists of a rotating cylindrical drum fitted with screen panels. As the drum rotates, material is lifted and dropped inside the drum, allowing fine particles to pass through the screen openings while larger particles move forward to the discharge end. Depending on configuration, processing capacity can reach 50–300 t/h.
It is widely used for screening construction waste, municipal solid waste, soil, sand, gravel, and mineral materials, especially in applications with high moisture content or mixed particle sizes.
Working Principle
The heavy-duty rotary drum screen employs a continuous rotary screening process, in which materials move axially forward along the drum while being classified by particle size. This machine features a robust structure and high production capacity, maintaining efficient screening performance even when handling complex materials such as wet or sticky substances. The specific operating process is as follows:
Uniform Feeding: Materials enter the drum via a hopper or conveyor. In high-capacity production lines, the machine is typically integrated with an upstream GZT series vibrating grid feeder to regulate the feed rate and prevent shock loads from damaging the equipment.
Drum Rotation: The cylindrical drum is installed at an incline (typically 5°–30°) and rotates at a set speed. The angle of inclination can be flexibly adjusted based on material characteristics (such as density) and the required screening efficiency.
Tumbling Screening: As the drum rotates, the material inside is continuously lifted and tumbled. Fine-grained material passes through the screen openings and falls into the collection hopper below, while coarse-grained material continues to move forward along the drum.
Smooth Discharge: The oversize material (coarse particles) is ultimately discharged from the end of the drum, while the undersize material (fine particles) is collected beneath the drum.
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Specifications
| Model | kW | m³/h |
| 3GTS-1530 | 11 | 20-150 |
| 3GTS-1548 | 15 | 30-200 |
| 3GTS-1830 | 15 | 30-250 |
| 3GTS-1850 | 18.5 | 30-250 |
| 3GTS-2030 | 15 | 30-250 |
| 3GTS-2050 | 22 | 30-250 |
| 3GTS-2070 | 30 | 30-250 |
| 3GTS-2230 | 37 | 30-300 |
| 3GTS-2250 | 37 | 30-300 |
| 3GTS-2270 | 37 | 30-300 |
Applications
Heavy‑duty rotary drum screens are widely used across various industries for efficient material classification, pre-treatment, and separation, especially in handling wet, sticky, or mixed materials.
For expert support and customized rotary screen solutions, contact Zhongyi to match the right machine to your application.
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Industrial Trommel Screen Manufacturer
Zhongyi is a manufacturer and supplier of industrial trommel screens and screening systems, serving mining, aggregate, and waste recycling industries since 2010. The company operates three production bases with CNC machining, laser cutting, and automated welding equipment, supporting stable manufacturing output and consistent quality control for industrial projects.
The company is ISO9001 certified and holds more than 60 patents in screening and bulk material handling equipment. Zhongyi trommel screens are applied in different working conditions, from construction waste and municipal solid waste to sand, gravel, and mineral screening projects.
We support complete project delivery, including equipment selection, process layout, and system integration for screening and processing lines. For projects requiring stable separation performance and customized capacity design, Zhongyi provides practical engineering support from planning to commissioning.
FAQs
What materials can a heavy‑duty rotary drum screen handle?
It is suitable for mining ores, sand, gravel, coal, construction waste, and municipal solid waste, including wet, sticky, or mixed materials that are difficult for traditional vibrating screens to process. To guarantee a uniform material balance without blockages under extreme quarry surges, this system is standardly synchronized with an upstream gzt serie vibrating grizzly feeder setup.
What is the typical capacity range?
Capacity varies by model and configuration, typically ranging from 20 to 300+ tons per hour, depending on drum size, material properties, and required screening accuracy.
How does a rotary trommel perform with wet or sticky materials?
The rotating drum design reduces clogging and improves material separation. Optional features like spray systems or anti-blocking mesh further enhance performance with high-moisture materials.
What is the typical feed size and output size?
Feed size is generally 50–150 mm. Output (undersize) can be customized, from coarse fractions to fine materials below 3 mm, depending on mesh configuration.
How to choose the right trommel screen model?
Selection depends on feed size, capacity, moisture content, material density, and target particle size, along with matching upstream and downstream equipment for smooth production flow.
What are the key maintenance requirements?
Regular inspection of screen mesh, rollers, drive system, and lubrication points is essential. Proper maintenance ensures longer service life and stable performance under continuous operation.
Can the machine be customized?
Yes, trommel screens can be customized in drum size, mesh type, inclination angle, feeding system, and discharge configuration to meet specific project and material requirements.
What industries commonly use trommel screens?
They are widely used in mining, quarrying, aggregate production, waste recycling, composting, and environmental protection projects requiring reliable and continuous material screening.
