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| Categories | Sludge Scraper |
|---|---|
| Brand Name: | Dongdai |
| Model Number: | NL 3xL |
| Certification: | 9001 |
| Place of Origin: | China |
| MOQ: | 1 Set |
| Price: | Negotiatable |
| Payment Terms: | T/T,Wechat Pay,Alipay |
| Supply Ability: | 1000 Sets per Years |
| Delivery Time: | 3-5 weeks |
| Packaging Details: | Export polywood |
| Standard: | ISO |
| Material: | Carbon steel |
| Product name: | Chain Plank Sludge Scraper System |
| Driving power(Kw): | 2.2Kw |
| Color: | any color |
| Surface treatment: | Nickle plated ,Plating |
| Recommended Pool Depth H(M): | 3.5m |
| Service: | OEM |
| Recommended Pool Length L(m): | 8-16m |
| Packing: | pp bag+carton |
| Sample: | Accessories Available |
| Pool Width B(m): | 3m |
| Company Info. |
| Jiangsu Longdai Environmental Protection Group Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
Optimized Title:
NL Series Chain Flight Sludge Scraper System – High-Efficiency Scum
and Residue Removal for Water Treatment Tanks
To Our Valued Customers,
We specialize in the manufacturing of a wide range of wastewater
treatment equipment. Should you have any inquiries, please do not
hesitate to contact us. Thank you.
Structure and Working Principle
The NL-type chain flight sludge and scum scraper system consists of
a drive unit, drive sprocket assembly, guide rail and carriage,
scraper flights, driven sprocket assembly, chain tensioning
mechanism, sludge collection pipe, and other key components.
During operation, the chain drives the scraper flights in a continuous loop along the tank. The flights move settled sludge toward the sludge hopper for collection, while simultaneously removing floating scum or oil from the water surface.
Technical Parameters
| Model | NL-3xL | NL-4.5xL | NL-5xL | NL-6xL |
|---|---|---|---|---|
| Tank Width B (m) | 3 | 4.5 | 5 | 6 |
| Tank Length L (m) | 8~16 | 8~16 | 8~16 | 8~16 |
| Tank Depth H (m) | 3.5 | 3.5 | 3.5 | 3.5 |
| Drive Power (kW) | 2.2 | 2.2 | 2.2 | 3 |
| Scraper Speed (m/min) | 1 | 1 | 1 | 1 |
| Scraper Spacing (m) | 2 | 2 | 2 | 2 |
| Max. Influent Turbidity (mg/L) | ≤500 | ≤500 | ≤500 | ≤500 |
Key Features
Over-Torque Protection: Automatically cuts power and triggers an alarm in case of jammed scrapers due to debris or excessive sludge.
Smooth Operation: Minimizes disturbance of settled sludge, ensuring efficient separation and collection.
Compact Integrated Design: Combines sludge and scum removal functions in a single unit, saving space and simplifying structure.
Easy Maintenance: The drive unit is mounted poolside for straightforward access and service.



Packing and Delivery
1. Waterproof packing with the international export standard by
20ft, 40ft, 40hp container. Equipment Fittings, Electric Motor and
Power Cabinet will be packed in Wooden Case or Iron Box. Other
Equipment will be packed by Color-Stripes Plastic Cloth.
2. The whole plant machinery size are large as normal, so we will
use Waterproof cloth to pack all of them. The motor, gear box or
other easily damaged parts, we will put them into box. We have a
professional shipping department, they will try their best to save
your container quantity.
Why Choose Us?
1. Longdai has more than 10 years of experience in wastewater and sludge treatment.
2. We introduce German technology, thus our product is much better than other Chinese manufacturers.
3. We only use the best parts from best supplier.
4. We have our own R&D center and complete manufacture system.
About Us
Located in Yixing, an advanced and beautiful city of Jiangsu
Province, China, Longdai Co., Ltd is a processing equipment
supplier of petrochemical industry specialized in environmental
processing &integrating independent research and development,
design, general contracting, environmental protection equipment
manufacturing, and relevant material supply.
The main products include mechanical bar screen, air flotation
device, dosing device, mud scraper, cooling tower, decanter,
chemical degreasing device, hydraulic screen, sand water separator,
filter, conveyor, thickener , Biological filter, softened water,
buried sewage treatment equipment, etc.
FAQ:
Q: Are You Trading Company Or Manufacture?
A: We Are Both Manufacture And Trading Company. We Have Over 30
Years' Professional Experience As a Waste Water Treatment Equipment
Manufacturer And Engineering Service Enterprise.
Q : What Are Your Main Products?
A:Keywords :Sludge Dewatering Machine Equipment, Screw Type Sludge
Dewatering Press Sludge Screw Press, Dewatering Sludge Machine
Screw Press ,Sewage Treatment Equipment ,Sludge Treatment
Plant,Screw Press Sludge Dewatering ,Dewatering Sludge,Dewatering
Machine For Sludge, Dewatering Sludge Machine Screw Press, Rotary
Drum Bar Screens, Equipment DAF, DAF Price ,Dissolved Air Flotation
System Price, Sludge Shaftless Screw Conveyor,Chemical Dosing
Device ,MBBR Price,MBBR Media,Disc Diffuser, Polymer Preparation
Chemical Dosing System, and other customized machines.
Q: How Can I Find The Suitable Model?
A: Please Provide Flow Rate, Solids Content And Sludge Type, or
directly contact us by the clicking the “contact” icon. We Can
Assist You In Model Selection.
Q: Where Is Your Factory Located?
A: Yixing City, We are in the famous city of environmental
protection equipment ,professional for Sludge screw press
dewatering Machine ,Which Is Very Close To Shanghai With Only Less
Than 3 Hours' Driving. Welcome for your visiting.
Q: Do You Provide OEM Service?
A: Yes. We Can Do The Customized Design According To Your Different
Request for sludge Dewatering.
Q: How About The Production Capacity Of Your Company?
A: Our Factory Covers Area Over 15,000m² And Produces Machines 2000
Sets Per Year.
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