Shandong Ningye Machinery Equipment Co., Ltd. is one of the leading manufacturers and suppliers of wastewater treatment sludge scraper in China. With a professional production team, we are able to meet the needs of the majority of our customers. Please feel free to buy durable wastewater treatment sludge scraper at low price from our factory.
The Wastewater Treatment Sludge Scraper is a core sludge removal device used in secondary sedimentation tanks and primary sedimentation tanks of wastewater treatment plants. Our company is a professional manufacturer with years of design and production experience. Our product line covers peripheral drive, center drive, chain-type, and siphon-type models. The equipment collects sludge settled at the bottom of the tank and pushes it to the sludge discharge outlet, ensuring stable effluent water quality.


Main Types
|
Type |
Application |
Features |
|
Peripheral Drive Scraper |
Large circular sedimentation tanks (diameter 10m–60m) |
High torque, stable operation, suitable for large tanks |
|
Center Drive Scraper |
Small circular sedimentation tanks (diameter 6m–25m) |
Compact structure, easy installation, small footprint |
|
Chain-Type Scraper |
Rectangular sedimentation tanks |
Strong adaptability, handles high-concentration sludge |
|
Traveling Bridge Scraper |
Large rectangular sedimentation tanks |
Wide span, large coverage area per unit |
Structural Components
Drive Unit:
Reducer + motor. Explosion-proof motor available. Protection grade IP55 and above.
Scraper Arm:
Carbon steel with anti-corrosion coating. Stainless steel option available.
Scraper Blade:
Polyurethane or rubber material. High contact with the tank bottom. Wear-resistant.
Sludge Pipe / Sludge Hopper:
Stainless steel. Connected to the sludge outlet to guide sludge flow.
Center Support / End Support:
Bears the full weight of the machine. Rotating parts use wear-resistant bearings.
Control System:
Supports manual/auto switch. Can be connected to PLC for remote control.
Technical Parameters (Peripheral Drive Scraper as Example)
|
Parameter |
Range |
|
Tank Diameter |
6m – 60m |
|
Flow Rate |
500m³/h – 50,000m³/h |
|
Scraper Linear Speed |
0.5 – 3.0 m/min |
|
Motor Power |
0.75kW – 7.5kW |
|
Tank Depth |
2.5m – 6.0m |
|
Material |
Carbon Steel + Anti-corrosion / SS304 / SS316L |
|
Protection Grade |
IP55 / IP65 |
Core Advantages
Direct Manufacturer, No Middleman:
We control the entire process from design, machining, and assembly to commissioning. Delivery time is guaranteed.
Strong Customization Capability:
We provide one-to-one design solutions based on your tank dimensions, sludge concentration, and site conditions.
Wide Material Options:
Carbon steel with epoxy coating, SS304, SS316L - available to meet different corrosion requirements.
Replaceable Scraper Blades:
Polyurethane blades can be replaced individually when worn, reducing maintenance costs.
Torque Verified by Calculation:
Every unit undergoes a load test before leaving the factory to prevent torque shortage on site.
Complete Technical Documentation:
Includes installation drawings, electrical wiring diagrams, and operation & maintenance manuals.
Application Scenarios
- Municipal wastewater treatment plants (primary and secondary sedimentation tanks)
- Industrial wastewater treatment stations (electroplating, dyeing, food, chemical industries)
- Waterworks sedimentation tanks
- Sludge thickening tanks in paper-making and tanning industries

After-Sales Service
- On-site installation guidance available. Technicians can be sent for commissioning.
- Long-term supply of wearing parts: scraper blades, bearings, seals, etc.
- 24-hour technical support response.
Information Required for Selection
To provide an accurate quotation and solution, please supply the following:
- Tank shape (circular / rectangular) and dimensions (diameter or L × W)
- Effective water depth
- Design flow rate
- Sludge properties (moisture content, concentration)
- On-site power supply (voltage, frequency)
- Whether remote control interface is required
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