Product Introduction
The 3D Cascade Screen (Step Screen) is a high-efficiency screening machine purpose-built for removing oversized interfering materials, accommodating items up to 1,500 mm in size. It adapts broadly to engineering spoil, construction waste, renovation waste, municipal solid waste, aged waste, and commercial/industrial waste screening scenarios, serving as a core screening unit for solid waste treatment, aggregate processing, and material classification industries.
The machine features an inclined installation structure. A flywheel exciter generates centrifugal force through rotation, driving the screen body in a stable reciprocating vibration. It is equipped with a welded 3D grid screen deck, with short bar grates mounted at the end of each screen panel. The grid screens are arranged horizontally in the transverse direction and in a stepped cascade layout longitudinally. During operation, materials tumble vigorously and break apart across the stepped screen deck, achieving high-efficiency separation. The welded screen deck withstands intense impacts from materials up to 1,500 mm and 20 kg. Oversized materials above the upper deck discharge from the outlet, while undersized materials fall through below. This design thoroughly addresses common industry pain points such as short screen surface life due to high material impact and material jamming that damages equipment.
The overall structure features user-centered engineering. Screen panels use a modular design for rapid replacement and maintenance. External dust covers, rubber shock-absorbing components, and an electrical overload protection system balance operating efficiency, operational stability, and safety. The equipment also delivers low noise, high impact resistance, and a low failure rate, with simple disassembly, inspection, and maintenance procedures that substantially reduce equipment O&M costs and manual labor intensity, making it well-suited for long-term continuous industrial operation with exceptional versatility and practicality.
Key Advantages
The welded 3D grid arc screen deck, arranged in a stepped cascade layout, increases material tumbling frequency while delivering superior impact resistance and reducing flexible material bridging. The cantilevered bar grates at the discharge end thoroughly break apart material clumps. Screen openings can be customized based on customer material specifications and screening requirements, adapting to diverse material classification operations with screening accuracy and operating efficiency far exceeding conventional screening equipment.
The exciter uses a modular design, allowing flexible adjustment of vibration amplitude by adding or removing counterweight blocks to suit materials of varying hardness, elasticity, and friction. Combined with integrated rubber damping blocks, it efficiently absorbs equipment operating vibration and substantially reduces operating noise. The equipment base experiences minimal vibration amplitude, delivering smooth overall operation and low wear rates.
Screen panel mounting uses bolted assembly — common tools enable rapid screen panel removal and replacement. The space beneath the lower screen deck provides ample access for inspection and maintenance, with simple and convenient procedures that effectively shorten equipment downtime and reduce manual maintenance difficulty and O&M costs.
A professional electrical overload protection system automatically triggers an alarm and shuts down the equipment in the event of overload operation or current anomalies, preventing damage from overloading. The welded screen deck maintains stability under prolonged intense impact, offering excellent wear resistance, corrosion resistance, and impact resistance suitable for complex operating conditions. The equipment demonstrates strong overall durability and extended service life.
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Rugged, impact-resistant screen deck for more efficient screening
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Modular and adjustable, with stable, low-noise operation
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Easy disassembly and assembly, with minimal O&M costs
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Intelligent protection for extended equipment service life
Technical Specifications
| Parameter | Specifications | Remarks | - |
|---|---|---|---|
| Model | DJT2460A | DJT1650A | - |
| Screen Deck Layers | 1 | 1 | - |
| Screen Surface Dimensions (m) | 2.4 x 6.0 | 1.6 x 5.0 | - |
| Number of Screen Panels | 19 | 11 | Flexible adjustment based on screen opening |
| Mesh Size (mm) | 80-450 | 80-450 | - |
| Dimensions (L x W x H, m) | 8 x 4.7 x 5.1 | 6.5 x 3.9 x 4.4 | - |
| Processing Capacity (m³/h) | 40-120 | 10-40 | Varies based on material properties and screening standards |
| Motor Power (kW) | 30 | 22 | Protection rating IP55 |
| Weight (t) | 18 | 10 | - |
| Max Feed Size (mm) | <=1500 | <=1000 | Designed for oversized interfering material removal |
Application Scenarios
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Solid Waste Treatment: Suitable for screening and classifying municipal solid waste, aged waste, industrial waste, and recyclable waste, supporting solid waste resource recovery and utilization.
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Infrastructure Earthwork: Applicable to construction and renovation waste, engineering spoil, backfill soil screening, and bulk contaminant separation operations.
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Resource Recycling: Used for removing oversized contaminants from recycled metals and other recovered materials, meeting downstream fine sorting production requirements.
Application Cases
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Municipal Solid Waste Treatment Project: Multiple cascade screen units deployed in municipal solid waste and aged waste sorting lines, screening materials and effectively separating oversized contaminants. The equipment operates continuously and stably without material blockage and with minimal failures, substantially improving waste sorting efficiency, reducing damage to downstream equipment from oversized materials, and supporting urban solid waste harmless and resource-oriented treatment.
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Aggregate Recycling Project: Applied in construction waste crushing and recycled aggregate screening scenarios, classifying recycled aggregates up to 1,500 mm with precise separation of coarse and fine aggregates. The equipment operates with low noise and high stability, with convenient O&M that effectively reduces production line operating costs and significantly improves finished product quality.