Introduction
The ZXG Series Central Drive Sludge Scraper is a suspended-type system specifically designed for sludge collection and removal in circular primary and secondary sedimentation tanks. Unlike peripheral drive models, the entire load of the ZXG system is supported by the Working Bridge, making it an ideal solution for tanks where a central underwater pivot is not desired.
Working Principle
The drive unit is mounted at the center of the working bridge. It rotates the vertical shaft and the attached scraper arms. As the arms rotate, the specially angled Scraper Blades sweep the settled sludge from the tank bottom toward the central sludge pit for discharge. The Influent enters through the central Influent Well to ensure steady flow distribution.
Application
●Municipal Wastewater Treatment Plants (STP/WWTP)
●Industrial Process Water Treatment
●Potable Water Treatment Plants
●Circular Primary & Secondary Clarifiers
●Chemical & Petrochemical Effluent Treatment
Specifications
Model | Tank Diameter (m) | Tank Depth(m) | Peripheral Speed (m/min) | Motor Power (kW) | Steel Structure Weight(kG) |
ZXG3 | 3m | 3m | 1~2 | 0.37 | 2500 |
ZXG4 | 4m | 3.5m | 1~2 | 0.37 | 3200 |
ZXG5 | 5m | 4.0m | 1~2 | 0.37 | 3800 |
ZXG6 | 6m | 4.0m | 1~2 | 0.37 | 4000 |
ZXG8 | 8m | 4.5m | 1~2 | 0.55 | 5000 |
ZXG10 | 10m | 4.5m | 1.5~2.5 | 0.55 | 6000 |
ZXG12 | 12m | 5m | 1.5~2.5 | 0.55 | 6800 |
ZXG14 | 14m | 5m | 2~3 | 0.75 | 7600 |
ZXG16 | 16m | 5m | 2~3 | 0.75 | 8300 |
ZXG18 | 18m | 5m | 2~3 | 0.75 | 9100 |
*Custom specifications available upon request. | |||||
Technical Features
●Suspended Design: All mechanical parts are supported by the bridge. There are no underwater bearings, which significantly reduces wear and simplifies maintenance.
●High Efficiency Scum Removal: Equipped with an integrated Scum Skimmer System to ensure the effluent surface remains clear of floating debris.
●Stable Flow Distribution: The optimized Influent Well dissipates energy and ensures an even flow, improving sedimentation efficiency.
●Overload Protection: Features an optional mechanical or electronic torque limiter to protect the drive motor and gearbox from damage.
●Corrosion Resistance: Submerged components are typically fabricated from SS304 or SS316L, ensuring a long service life in harsh wastewater environments.
Structure
Our sludge scraper consists of the following main components:
●Working Bridge: A heavy-duty steel beam spanning the tank, providing a stable platform and walkway.
●Central Drive Unit: A high-torque motor and gearbox that powers the entire scraping system.
●Scraper Arms & Blades: Angled blades at the bottom that continuously sweep sludge toward the center pit.
●Influent Well: A central cylinder that stabilizes incoming water flow for better sedimentation.
●Scum Skimmer: A surface mechanism to collect and remove floating debris and foam.
●Safety Protection: Built-in mechanical or electronic overload protection to prevent equipment damage.
Customized Parts in Warehouse
Inside Our Factory: Real Production for Real Projects
As a specialized manufacturer, we don't just sell equipment—we build it. These Working Bridges and Influent Wells are custom-engineered in our workshop to meet a client's specific tank dimensions.
From material selection (SS304/316L) to structural design, we provide tailored solutions that fit your project perfectly. Whether you need a specific diameter or a reinforced frame, our engineering team is ready to customize.
Successful Projects
We have delivered our central drive sludge scrapers to customers worldwide. Our equipment is known for its reliability in both municipal and industrial environments..
