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Our DENOR Non-drum sewage grinder is suitable for small open channels and small flow rate water intakes.
Open channel sewage grinders - your reliable solution for grinding of various types of waste and contaminants extracted from industrial and commercial and domestic wastewater.
Main Benefits of the Sewage Grinders
Compact, efficient design with custom frames
Available for installation in-channel, pipe mounted, or slide rails
Suitable for small open channels and narrow space
Amphibious motor design for versatile use
Optional PLC intelligent control system
Low investment, operating and maintenance costs
Main Applications
Water inlet channel(well)
Sewage lift projects
Municipal sewage systems
Industrial / Commercial / Residential areas
Product Description
Technical Data
Applications
DENOR Non-Drum Sewage Grinder: High-Strength Grinding, No Rotating Drum, No Clogs, Save Cost.
Not all grinding applications need a rotating drum. For installations where uninterrupted flow and low maintenance are top priorities, the DENOR Non-Drum Sewage Grinder delivers.


This high-strength grinder is engineered to reduce pump ragging and protect downstream equipment—without the complexity of a rotating drum. It tackles the toughest solids head-on, including rags, rocks, plastics, wipes, paper, clothing, fabrics, wood, bottles, and more.
Our Denor offers a wide range of sewage grinders engineered for superior performance, reliability, and easy maintenance. They are built for sewage, sludge and screenings applications in either open channel, inline or gravity installations. Each unit is heavily constructed for low vibration and quiet operation.
Designed for Demanding Environments
The Non-Drum wastewater grinder is built for applications where reliability cannot be compromised. Its open-ended, no rotating drum design means fewer moving parts and fewer things to clean.
Key Design Highlights:
Customization: Built Your Way
Every site has unique challenges. That's why the Non-Drum Sewage Grinder is designed for full customization:
| Feature | Customization Options |
| Cutting Blades | Number of blades configurable for your specific solids load. |
| Dimensions | External size fully adaptable to your installation space. |
| Materials | Available in carbon steel or stainless steel. |
| Connection | Can be outfitted with flanges for seamless pipeline integration. |
Working Principle
Our non-drum channel wastewater grinder is widely used in open channel of integrated prefabricated pump station, wastewater treatment plant, rainwater drainage channels, tunnel drainage pumping station, commercial and residential district pipe network engineering, sewage lifting project etc.
Why Choose DENOR?
Need a non-drum sewage grinder that fits your exact specs? [Contact DENOR] for a custom quote.
Materials of construction
| Motor | Customized, multiple power options |
| Reducer | Planet gear reducer |
| Rotating Drum Screen | Stainless steel |
| Cutters and Spacers | Heat-treated alloy steel |
| Shafts | Heat-treated alloy steel |
| Housings | Ductile cast iron ASTMA 536 |
| Mechanical Seals | Tungsten carbide faces |
| Channel Frame | Carbon steel or stainless steel (304, 316) |
Non-drum channel type wastewater grinder models (Supports on-demand customization).
|
Model |
Flow (m³/h) |
Size(mm) |
Weight(kg) |
||
|
A |
B |
C |
|||
|
DNRF-N80 |
80 |
1225 |
189 |
506 |
218 |
|
DNRF-N120 |
120 |
1352 |
286 |
603 |
230 |
|
DNRF-N170 |
170 |
1481 |
415 |
732 |
265 |
|
DNRF-N240 |
240 |
1644 |
578 |
895 |
300 |
|
DNRF-N300 |
300 |
1772 |
691 |
1008 |
320 |
|
DNRF-N400 |
400 |
1911 |
821 |
1138 |
350 |
Water Inlet Channel(well)
Sewage grinders can pulverize suspended solids and floating debris in water channels into particles measuring 6mm to 12mm.
Sewage Lift Station Projects
Sewage grinders can be installed at integrated lift pump station to reduce the size of solid waste, protect pumps, and ensure efficient wastewater transport.
Municipal Sewage Systems
Sewage grinders are used in municipal sewage pipeline systems to reduce the volume of solid waste, prevent pipe blockages, and protect pumps and other equipment during wastewater treatment.
Industrial / Commercial / Residential Areas
Industrial, commercial, and residential areas all generate various types of solid waste. Sewage grinders can help manage this waste and maintain the smooth operation of the sewer system.
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CUSTOMIZED DISPLAY
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Bespoke Design
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