Mechanical Screening Equipment for Wastewater Pretreatment
Protect your pumps and downstream processes with Loway’s robust, automatic screening systems. Engineered for municipal headworks, industrial effluent, and pump station reliability.
Reliable Solid-Liquid Separation & Inline Grinding Solutions
Loway Equipment manufactures high-performance screening solutions designed to tackle the toughest debris removal and grit separation challenges. Whether you require coarse screening for large solids or precision filtration for membrane protection, our SS304/316L equipment ensures continuous, unmanned operation and reduced maintenance costs.
The First Line of Defense in Water Treatment
Screening is the critical foundational step in any wastewater treatment plant (WWTP) or industrial processing workflow. Subpar equipment leads to pump clogging, pipeline blockages, and costly operational downtime.
At Loway Equipment, we bridge the gap between heavy-duty durability and precision engineering. From removing large floating debris to shredding solids inline, our systems are built to withstand harsh corrosive environments while optimizing flow rates and capture efficiency.
Explore Our Screening Categories
Rotary Bar Screens (Chain & Rake Type)
The industry standard for coarse and medium screening.
Designed for deep channels and high solid loads, the Rotary Bar Screen uses a continuous rake system to intercept and lift large debris. It is the ideal primary screen for protecting headworks and lift stations.
Best For: Fine screening (3mm-6mm), fibrous waste.
Step Screens (Stair Type)
Self-cleaning precision for fine filtration.
Featuring a unique moving-step mechanism, the Step Screen lifts solids layer-by-layer. Its formation of a “sludge mat” ensures high capture rates for fibers and hair without the need for wash water or brushes.
Best For: Fine screening (3mm-6mm), fibrous waste.
Rotary Drum Screens
Maximum separation for MBR & industrial applications.
Integrated screening, conveying, and dewatering in a single unit. The Rotary Drum Screen offers adjustable precision (wedge wire or perforated plate) to protect sensitive membrane bioreactors and process industrial effluent.
Best For: Super-fine screening (0.5mm-3mm), food & beverage, MBR.
Channel Grinders (Macerators)
Inline protection for submersible pumps.
Unlike screens that remove waste, the Channel Grinder shreds solids (rags, plastics, wood) into tiny particles that remain in the flow. This solution eliminates the need for debris disposal in underground or space-constrained pump stations.
Best For: Pump protection, deep wells, zero-disposal sites.
Which Solution Fits Your Process?
Feature | Rotary Bar Screen | Step Screen | Drum Screen | Channel Grinder |
Primary Function | Debris Removal | Fine Filtration | Super-Fine Filtration | Inline Shredding |
Separation Size | Coarse (>5mm) | Fine (3mm-6mm) | Ultra-Fine (0.5-3mm) | Particle Reduction |
Capture Target | Bottles, Sticks, Rags | Fibers, Paper, Sludge | Hair, Grit, Suspended Solids | Rags, Plastics (Shredded) |
Disposal Needed? | Yes (Conveyor/Bin) | Yes (Conveyor/Bin) | Yes (Integrated) | No (Stays in flow) |
Key Application | WWTP Headworks | Municipal/Textile | MBR/Food/Paper | Pump Station/Manhole |
Engineered for Diverse Environments
- Municipal Wastewater: Headworks screening and lift station protection.
- Industrial Effluent: Custom solutions for chemical, textile, and tannery wastewater.
- Food & Beverage: Recovery of organic solids and packaging removal.
- Pulp & Paper: Fiber recovery and reject separation.
- Solid Waste Management: Leachate treatment and sludge processing.
Engineering Excellence for Global Partners
Loway Equipment delivers value through:
Rugged & Durable Build:
All wetted parts are available in AISI 304 or 316L Stainless Steel, ensuring resistance to corrosion and wear in aggressive sewage environments.
Automation & Efficiency:
Our systems feature intelligent PLC controls (Time/Level Differential) to minimize energy consumption and eliminate manual labor.
OEM Customization:
We tailor channel width, discharge height, and installation angle to fit your existing civil works—no site modification required.
Global Support:
From detailed GA drawings for your tender to fast spare parts delivery, we support our distributors and clients worldwide.
Contact Loway Equipment’s engineering team today for a technical consultation or a competitive quote.
Frequently Asked Questions
Have More Questions? Our technical team is ready to provide detailed, personalized guidance.
Q1: Should I choose a Bar Screen or a Channel Grinder?
If you have the facility to handle and dispose of solid waste, a Bar Screen is better as it reduces the organic load on the plant. If you are in a remote or underground pump station with no means of disposal, a Channel Grinder is the ideal choice to protect pumps without removing the solids.
Q2: How do I determine the correct slot size (gap) for my project?
The slot size depends on the downstream equipment you need to protect.
- Coarse Screening (10mm – 50mm): Recommended for protecting large raw sewage pumps and storm pumps.
- Fine Screening (3mm – 6mm): Essential for protecting biological treatment tanks and sludge handling systems.
- Ultra-Fine Screening (0.5mm – 2mm): Required for MBR (Membrane Bioreactor) protection and specific industrial fiber recovery.
- Need help? Contact our engineering team for a free calculation based on your flow rate.
Q3: What material options do you offer for corrosive environments?
Our standard units are manufactured from AISI 304 Stainless Steel, which is sufficient for most municipal sewage. For high-salinity applications (seawater), industrial chemical effluent, or acidic environments, we strongly recommend upgrading to AISI 316L Stainless Steel or Duplex Stainless Steel for maximum corrosion resistance.
Q4: Is the control panel included, and how does the automation work?
Yes, we provide a complete IP55/IP65 Control Panel (PLC based) with every unit. The equipment operates automatically based on three modes:
- Level Differential: Starts when the water level difference before and after the screen reaches a set point (e.g., due to blockage).
- Timer: Runs at fixed intervals (e.g., 5 minutes every hour).
- Manual: For maintenance and testing.
Q5: What happens if the screen gets jammed by a large object?
Loway screens are equipped with mechanical and electrical overload protection. If a blockage occurs (e.g., a large stone or metal log), the torque limiter or shear pin will disengage, and the motor will cut off instantly to prevent damage. An alarm signal can be sent to your SCADA system.
Q6: Can you customize the dimensions to fit my existing channel?
Absolutely. We specialize in retrofitting. We customize the screen width, discharge height, and installation angle to match your existing civil works exactly. No expensive civil modifications are required on your site.
Q7: Is the equipment shipped fully assembled?
Yes, for most standard sizes, the unit is shipped fully assembled and tested. It is designed for “Plug-and-Play” installation. For extremely large units (e.g., exceeding container height), we may ship in two sections with clear assembly instructions and bolted connections.
Q8: Do you offer international warranty and spare parts support?
We offer a standard 12-month warranty from the date of commissioning (extendable upon request). We keep a stock of critical spare parts (rake teeth, chain links, nylon brushes) and can ship them globally via air freight within 3–5 days to minimize downtime.
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