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Sealed and Dust Free Shaftless Screw Conveyor Flexible Adaptability Smooth and Low Noise
| Place of Origin | CHINA |
| Brand Name | WESUS |
| Certification | CE,UL |
| Model Number | Mixing and Conveying Machine |
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Sealed and Dust-Free Shaftless Screw Conveyor Flexible Adaptability Smooth and Low Noise
Brief Description
In industrial environments with increasingly stringent environmental requirements, this sealed and dust-free shaftless screw conveyor is the preferred solution. Its fully enclosed trough design effectively prevents dust spillage and odor diffusion, significantly improving the workshop working environment. The equipment is flexible and adaptable, with its length and inclination angle customized to fit various production line layouts. Smooth and low-noise operation reduces vibration interference to surrounding equipment, meeting green factory standards. Suitable for various scenarios involving chemical powders, food residues, and municipal sludge.
Product Overview
Unlike traditional screw conveyors that rely on a central supporting shaft, our conveyor adopts a heavy-duty integrated coil spiral structure with no center shaft design. By virtue of this innovative mechanical configuration, it effectively eliminates long-standing conveying bottlenecks when handling highly adhesive, stringy, fibrous or agglomerated bulk materials.
Working Principle
*Direct-Drive Shaftless Rotation: The motor directly powers a robust shaftless spiral steel belt rotating inside a sealed trough, removing reliance on traditional intermediate transmission shafts for simplified and reliable power delivery.
*Gravity-Assisted Axial Propulsion: Leveraging surface thrust from the rotating spiral, materials advance steadily under gravity. Unlike fixed blades, the moving spiral drives payload forward just as a nut travels along a screw thread.
*Anti-Clog Self-Cleaning Mechanics: Without a central shaft, long fibers and sticky media cannot wrap or jam; meanwhile, the moving steel belt continuously scrapes the trough interior to prevent buildup and achieve automatic de-blocking.
*High-Torque Low-Speed Performance: Designed for low rotational speed with high output torque, the unit maintains strong traction even under high fill rates, high friction, and difficult-to-convey mixed materials.
Product Parameters
| Model Item | WLS-260 | WLS-300 | WLS-360 | WLS-420 | WLS-460 | |
| Rotation Speed(r/mm) | 18 (horizontal) ;＞18 (incline) | |||||
| Capacity(m3/h) | 0° | 3 | 6 | 9.5 | 12 | 15 |
| 15° | 2.1 | 4.6 | 6.5 | 9 | 11 | |
| 30° | 1.3 | 2.6 | 4.3 | 5.7 | 7.5 | |
| Screw Diameter(mm) | 220 | 260 | 320 | 380 | 420 | |
| Power(kw) | 1.1-4.0 | |||||
| Installation Angle(a) | ≤20°(special ordering 20°＜a≤30°) | |||||
| Converying Length(m) | Determined by customer needs | |||||
Key Design & Performance Features
*Zero Clogging: The open-core design eliminates the central shaft where material typically builds up and hardens. It handles problematic materials like wastewater sludge, municipal solid waste, biomass, food waste, and viscous industrial by-products with ease.
*Enhanced Efficiency: With no internal obstructions, material flows smoothly and consistently, increasing your overall throughput and operational efficiency.
*Low Maintenance: Reduced clogging means less downtime for clean-outs. The simple, durable design has fewer wear points, leading to significantly lower maintenance costs and longer service life.
*Greater Flexibility: Available in various pitches, diameters, and materials of construction (e.g., carbon steel, stainless steel), our conveyors can be customized to fit your specific layout and material characteristics.
*Space-Saving Design: Capable of operating at steeper inclines than traditional conveyors, it optimizes floor space in your facility.
Applications
*Municipal Water Treatment Facilities: Ideal for transporting Screenings, Grit Settlements, and Dewatered Sludge cake.
*Energy-from-Waste & Resource Recovery Plants: Efficient handling of Municipal Solid Waste and Bulk Biomass Fuels.
*Agro-Food Processing Lines: Reliable conveyance of Pulp Residues, Fruit/Vegetable Peels, and Press Pomace.
*Paper Manufacturing & Pulping Processes
*Chemical Raw Material Handling & Mineral Ore Processing
Company Profile
WESUS is a leading manufacturer and total solution provider for advanced sewage and sludge treatment systems. Founded in Yixing, China in 2013, we offer reliable, cost-effective equipment and engineering services to global clients. Certified with ISO 9001, ISO 14001 and ISO 45001, we possess strong in-house R&D and manufacturing capabilities supported by a large production base, a professional technical team, patents and university cooperation. Our comprehensive product range includes screening, filtration, sludge dewatering, mixing, aeration and customized solutions. With end-to-end services from design to after-sales support and proven global project experience, we have earned wide recognition including national high-tech enterprise and 5-star after-sales certifications. Adhering to the philosophy of real innovation, excellence and win-win cooperation, WESUS is committed to providing smart, sustainable water treatment solutions for municipal and industrial clients worldwide.
FAQ
Q1: Are you a direct manufacturer? What certifications do you hold?
A: We are a direct manufacturer with our own production facilities and R&D team. We maintain full control over quality, cost, and delivery, and hold certifications including ISO 9001/14001 for our core products.
Q2: What types of collaboration models do you offer?
A: We provide flexible solutions:
- Equipment Supply: Standalone or packaged systems.
- Turnkey Solutions (EPC): Design, procurement, construction, and commissioning.
- Technical Cooperation: Process upgrades, operational maintenance support, and technical consulting.
Q3: How is after-sales service and support ensured?
A: We provide full lifecycle support:
- Warranty: 12–24 months on core equipment.
- Response: 7x24 remote support with fast on-site assistance when needed.
- Spare Parts: Genuine parts are stocked for long-term supply security.
- Maintenance: Annual Maintenance Contracts (AMC) are available to ensure long-term system efficiency.
Q4: What is your typical project execution process?
A: Our standardized workflow ensures efficiency and transparency:
1. Requirement Analysis → 2. Proposal & Quotation → 3. Design Finalization → 4. Production & Factory Testing → 5. Shipping & Installation → 6. Commissioning & Training → 7. After-sales Service.
Customer involvement is encouraged at key milestones.
Q5: Can you provide references or case studies?
A: We have extensive global project experience across municipal and various industrial sectors. We can provide detailed, anonymized case studies and client references upon request.
Q6: What are your payment terms and delivery lead times?
A: - Payment: We accept T/T and L/C, with standard industry progress payment terms.
- Lead Time: Standard equipment: 4–8 weeks. Large custom projects: 12–20 weeks.
A clear production schedule is provided upon contract signing.
Q7: How do you serve international clients?
A: We are experienced in international projects, arranging complete logistics (FOB, CIF, DDP, etc.) and providing full customs documentation. Our designs pre-consider compliance requirements in target markets.
Q8: Can you upgrade or retrofit existing systems?
A: Yes. We specialize in evaluating existing facilities and providing customized retrofit and expansion solutions to enhance performance and capacity with minimal investment and downtime.
Q9: How can we start a consultation?
A: Please contact our Sales Engineering team. To facilitate an efficient discussion, please have your treatment requirements, water quality data, and site information ready. We will provide a preliminary proposal and professional advice.
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