Corrosion and Scale Resistant Filter Press Machine Automatic Backwash Low Resistance
Brief Description
Optimized flow channel design for high hardness or easily scaled water, providing excellent corrosion and scale resistance. Equipped with an automatic backwash function, it can restore flow rate without stopping the machine, ensuring continuous operation. Suitable for industrial filtration scenarios such as chemical intermediates and cooling circulating water.
![]()
Product Overview
Our high-efficiency self-cleaning Rotary Drum Micro-screen is purpose-built to capture fine suspended solids, fibers and particulate pollutants, supporting tertiary wastewater treatment, water reuse initiatives and industrial process purification. With a continuously rotating drum wrapped in fine micro-screen panels, it produces steady, high-quality filtered water with negligible manual intervention, enabling compliance with stringent effluent regulations and advancing sustainable water management.
Working Principle
The horizontally installed drum filter intakes untreated water through its open end, with internal water distribution ensuring even coverage across the screening surface. Gravity filtration occurs under low hydraulic head, as water permeates outward through 10–100 micron mesh or wedge wire screens while suspended solids are captured on the inner face. Slow drum rotation elevates the trapped solids above the water level, and a high-pressure spray assembly using filtered water blasts the solids into an internal collection trough at the topmost point; purified filtrate is collected in the outer effluent compartment, and rinsed solids are transported for disposal.
Product Parameters
| Parameters | SLFC1 | SLFC2 | SLFC3 | SLFC4 | SLFC5 |
| Filtration Area (㎡) | 5 | 7 | 9 | 11 | 14 |
| Screen Mesh | 60-250 | 60-250 | 60-250 | 60-250 | 60-250 |
| Water Treatment Capacity (T/H) | 50-100 | 80-150 | 100-200 | 120-240 | 150-300 |
| Drum Rotation Speed (r/min) | 4-6 | 4-6 | 4-6 | 4-6 | 4-6 |
| Backwash Water Pressure (MPa) | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Motor Power (KW) | 1.1 | 1.5 | 1.5 | 2.2 | 3 |
| Drum Diameter (mm) | Φ1000 | Φ1250 | Φ1250 | Φ1500 | Φ1500 |
| Effective Drum Length (mm) | 1500 | 2000 | 2500 | 3000 | 3500 |
| Weight (t) | 1.5 | 2 | 2.5 | 3 | 3.5 |
| SS Removal Rate (%) | 70-85 | ||||
| COD Removal Rate (%) | 35-50 | ||||
![]()
Key Design & Performance Features
1. Simple structure with smooth operation, easy maintenance, and long service life.
2. High-capacity, efficient filtration, achieving over 80% recovery rate for fine suspended solids in wastewater.
3. Compact footprint, cost-effective operation, low-speed running with automatic protection, and easy installation.
4. Fully automated and continuous operation requiring no dedicated personnel; capable of discharging filter cake with a solids concentration exceeding 12%.
5. Can serve as an alternative to coarse filtration equipment such as mechanical bar screens.
Applications
For solid-liquid separation in various industrial wastewaters, the micro-screen delivers high efficiency in removing fine particles above 0.25 mm in size. As an advanced pretreatment solution, it adapts to papermaking, tanning, slaughter, brewing, printing and dyeing, textile and chemical wastewater. Its outstanding performance in papermaking white water treatment enables fully closed-loop recycling and reuse.
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.
![]()
در هر زمان با ما تماس بگیرید