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Shaftless Trommel Screen
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Product Introduction
The shaftless trommel screen is a highly efficient and reliable solid material screening equipment, widely used in scenarios such as particle classification, impurity separation, and material filtration. Its core feature lies in abandoning the central shaft structure of traditional trommel screens, adopting an open shaftless design where the screening drum is directly driven by annular support wheels to rotate. This configuration results in a simpler structure and higher screen utilization rate. The screening drum is typically constructed from wear-resistant metal mesh or perforated plates, and can be designed in cylindrical, conical, or polygonal shapes to accommodate different material characteristics and operational requirements.
Working principle
1、Feeding & Screening: Material is evenly fed into the trommel screen through the inlet. The drum rotates at a controlled speed driven by an electric motor and gearbox.
2、Graded Screening: As the drum rotates, materials tumble. Particles smaller than the mesh size fall through the screen into the collection hopper below, while larger particles travel axially along the drum to the discharge end.
3、Multi-stage Classification: Multi-level screening is achieved through segmented drum sections equipped with screens of progressively smaller apertures.
4、Discharge Mechanism: The inclined drum (with adjustable tilt angle) facilitates continuous material flow and separation via gravity and centrifugal forces.
Application Industries
1、Mining & Metallurgy: Grading and screening of coal, ores, and aggregates.
2、Construction Waste Recycling: Classification of recycled aggregates from crushed concrete and bricks.
3、Environmental Protection: Sorting and resource recovery of municipal waste, organic compost, and industrial solid waste.
4、Agriculture: Impurity removal and particle grading of grains (e.g., wheat, corn).
5、Chemical & Power Industries: Particle size control for chemical raw materials and biomass fuels (e.g., wood chips, straw).
6、Aggregate Production: Grading and pre-washing of manufactured sand and crushed stone.
Performance Features & Advantages:
1、Anti-clogging: No central shaft obstruction enables enhanced material flow for viscous/moist materials, minimizing screen blockage risks.
2、High processing capacity: Screen effective area increased by over 30%, ideal for high-throughput applications.
3、Low maintenance: Simplified structure with fewer failure points ensures stable operation and reduced upkeep costs.
4、Efficient screening: Material fully tumbles in the drum, achieving ≥90% screening efficiency (especially for fine particles). Supports dry screening and wet screening (with spray) modes for diverse conditions.
5、Strong adaptability: Handles materials with high moisture content orsubstances (e.g., sludge, wet sand).
6、Customizable screen apertures: 1mm–200mm specifications available to meet varied particle sizing needs.
7、Energy-saving & eco-friendly: Low motor power (typically 5.5–30kW); energy consumption is only 60%–70% of vibrating screens. Sealed design reduces dust emissions, complying with environmental standards.
8、Durability: Wear-resistant screen mesh materials (high-manganese steel, polyurethane) ensure long service life and easy replacement. Support rollers equipped with heavy-duty bearings enable robust load-bearing for continuous operation.
Technical Specifications Table
Equipment Model
Feed Particle Size(mm)
Processing Capacity（t/h)
Drum Specifications（mm）
Drum Inclination Angle(°)
Power
（kw）Overall Dimensions
（mm）HGT1040
≤50
30-60
1000X4000
6
3kw
5500X1460X2340
HGT1240
≤50
30-100
1200X4000
6
5.5kw
5500X1680X2480
HGT1560
≤100
30-150
1500X6000
6
7.5kw
6800X2100X4400
HGT1860
≤100
30-200
1800X6000
6
11kw
8490X2400X4680
HGT2160
≤100
30-250
2100X6000
6
15kw
8490X2760X5000
HGT2460
≤100
30-250
2400X6000
6
18.5kw
8490X3020X5200
HGT2480
≤100
30-300
2400X8000
5-10
22kw
8700X2860X5700
HGT3080
≤100
30-400
3000X8000
5-10
37kw
8800X3660X5800
For more detailed technical specifications or application cases, feel free to contact us for further discussion!
Shaftless Trommel Screen
Still deciding? Get samples first, Contact US !
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