What is a LX Series Spiral Shaft Screen?
The LX Series Spiral Shaft Screen also called a Spiral Screening Machine, is a screening device used in waste sorting and recycling plants for separating mixed solid waste by particle size. The screening deck consists of multiple spiral shafts fitted with specially designed blades that rotate to move, spread and classify materials across the screen surface. Fine materials pass through the screening openings, while oversized materials are discharged separately.
The equipment is widely used in municipal solid waste (MSW), bulky waste, commercial waste, construction and demolition (C&D) waste, and RDF/SRF production lines. Compared with conventional screening equipment, the open spiral structure helps reduce material accumulation and blockage, maintaining stable operation when processing waste streams containing plastics, textiles, organics and other irregular materials.
Applicable Materials
The LX Series Shaft Spiral Screen is used for MSW, C&D waste, bulky waste, landfill waste and RDF/SRF production. It efficiently separates fines from oversized materials, handles wet and sticky waste with minimal clogging, and improves downstream sorting efficiency and resource recovery.
Working principle
The LX Series Spiral Shaft Screen separates materials by size through a series of rotating spiral shafts arranged across the screening deck. Mixed waste is fed onto the screen surface, where gear motors drive the spiral shafts to rotate continuously. As the shafts turn, materials are conveyed forward while being loosened and evenly distributed across the screening area.
The screening openings are formed by the grooves between adjacent spiral blades. Fine materials such as soil, organics and small particles pass through these openings, while larger materials remain on the screen surface and move toward the discharge end. This continuous screening process helps reduce clogging and material wrapping, making the equipment particularly suitable for wet, sticky and mixed waste streams while maintaining stable throughput and reliable separation efficiency.
Parts of Spiral Shaft Screen
The LX Series Spiral Shaft Screen mainly consists of spiral shafts, spiral blades, gear motors, bearing assemblies, a supporting frame and an electrical control system. The spiral shafts and blades perform material conveying and screening, allowing fine particles to pass through while oversized materials move forward. Gear motors provide stable and synchronized rotation, while heavy-duty bearings ensure reliable operation under continuous loads. The reinforced steel frame offers structural stability, and the PLC-based control system supports efficient operation, speed regulation and seamless integration with waste sorting and recycling plants.
- Spiral Shafts
The spiral shafts are the main working components of the screen. Multiple shafts rotate simultaneously to move materials across the screening deck while supporting the screening and separation process. - Spiral Blades
Wear-resistant spiral blades are mounted on the shafts to form screening openings. They convey, spread and loosen materials, allowing fine particles to pass through while transporting larger materials to the discharge end. - Bearing Assemblies
Heavy-duty bearing assemblies support the rotating shafts and reduce operating friction. They are designed for continuous operation in dusty and demanding waste processing environments. - Supporting Frame
The supporting frame is manufactured from welded steel sections to provide structural strength and stability. It supports the entire screening system and withstands the loads generated during operation. - Gear Motor Drive System
The gear motor drive system provides stable power and torque for shaft rotation. It ensures synchronized operation of all spiral shafts, helping maintain consistent screening performance and material flow.
Parts Details Show
Applications
The Spiral Shaft Screen is widely used in waste sorting and recycling plants to separate materials by size before downstream processing. Its open shaft structure allows stable screening of mixed waste streams containing organics, plastics, paper, textiles and other irregular materials. The equipment is particularly effective for wet, sticky and heterogeneous waste, helping improve sorting efficiency, resource recovery and overall plant performance.
Municipal Solid Waste (MSW):
In municipal solid waste processing plants, the Spiral Shaft Screen separates fine organic materials, soil and small particles from mixed household waste. The screened material can then be sent to magnetic separators, air separators and manual sorting stations, improving the efficiency of the entire recycling process.
Construction And Demolition Waste:
The Spiral Shaft Screen is used to classify construction and demolition waste containing concrete, bricks, wood, plastics and metals. By separating materials into different size fractions, it improves recycling efficiency and prepares materials for crushing, sorting and reuse.
Bulky Waste Recycling:
In bulky waste recycling plants, the Spiral Shaft Screen is typically installed after primary shredding. It removes fine materials and separates larger fractions from waste furniture, mattresses, wood products and mixed bulky waste, supporting more efficient downstream recovery operations.
RDF/SRF Production Lines:
For RDF and SRF production, the Spiral Shaft Screen removes fine inert materials and screens feedstock before fuel preparation. This helps improve the quality of combustible materials, increase fuel consistency and support stable operation of the production line.
Customer Cases Show
Specifications
The LX Series Spiral Shaft Screening machine includes LXS3022, LXS3522 and LXS5025 models with capacities from 50 to 400 m³/h. Shaft numbers increase from 12 to 16, improving throughput and screening stability. All models use a 2×11 kW drive system for synchronized operation, ensuring stable conveying and efficient separation in MSW and recycling plant applications. The detailed technical specifications are shown in the table below.
| Model | Number of Spiral Shafts | Drive Power (kW) | Capacity (m³/h) |
|---|---|---|---|
| LXS3022 | 12 | 2 × 11 | 50–200 |
| LXS3522 | 14 | 2 × 11 | 60–250 |
| LXS5025 | 16 | 2 × 11 | 90–400 |
Advantages
The spiral shaft screening equipment from Xinzhongyi ECO is designed for real-world waste processing conditions such as high moisture content, mixed waste composition and film-rich materials, focusing on stable conveying, reduced blockage risk and continuous operation in municipal and industrial waste sorting plants, and it performs more consistently than trommel screens and vibrating screens in wet, film-rich and mixed waste conditions where clogging and material wrapping are common problems due to its spiral shaft conveying and screening structure.
Custom Spiral Shaft Screen Solutions
Xinzhongyi ECO can provide a complete LX Series Spiral Shaft Screen technical solution, including equipment selection, structural configuration, capacity matching and integration into your waste sorting or recycling line. We support both single-machine supply and full system design to ensure stable screening performance under real operating conditions such as MSW, C&D waste and RDF processing. Our engineering team will optimize the layout and operating parameters according to your project requirements to achieve efficient separation and reliable long-term operation.
To prepare a suitable proposal, we need the following basic project information:
1. Waste type and composition (MSW / C&D / bulky waste / RDF, etc.)
2. Maximum feed size of incoming material (mm)
3. Target processing capacity (m³/h or t/h)
4. Moisture content and material characteristics
5. Required screening cut size or separation requirement
6. Available installation space or plant layout
7. Power supply standard (voltage, frequency, phase)
8. Project scope (single equipment or complete sorting line)
Spiral Shaft Screen Manufacturer & Supplier
With over 16 years of manufacturing and project experience, Xinzhongyi ECO provides complete waste recycling plant solutions from single machines to full sorting lines. Equipment selection depends on waste type, moisture, capacity and required separation performance. Different materials such as MSW, C&D waste or RDF feedstock require different configurations to ensure stable operation and efficient recovery.
Xinzhongyi ECO offers one-stop services including equipment selection, plant layout design, production, installation guidance and after-sales support. To design a suitable solution, we need basic project data such as waste composition, feed size, capacity requirement, output demand and site conditions. This ensures accurate configuration and reliable long-term operation.
FAQs
It is used in waste sorting plants to separate mixed solid waste by particle size, commonly applied in MSW, C&D waste, bulky waste and RDF/SRF production lines.
Yes. The spiral shaft structure is designed for high-moisture waste such as municipal waste and landfill waste, reducing clogging and maintaining stable operation.
Capacity depends on model and waste type, generally ranging from around 50 m³/h to 400 m³/h in standard configurations.
No. It has fewer wearing parts compared with vibrating and drum screens, which reduces maintenance frequency and downtime.
Yes. Shaft layout, spacing, drive configuration and screening size can be customized according to waste composition and plant requirements.
Yes. It is commonly integrated with shredders, wind sifters, magnetic separators and other equipment in complete waste recycling plant solutions provided by Xinzhongyi ECO.
