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| Categories | Decanter Centrifuge |
|---|---|
| Brand Name: | Longdai |
| Model Number: | LW |
| Place of Origin: | China |
| MOQ: | 1Set |
| Price: | 15000USD-25000USD |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability: | 100Set Per Month |
| Delivery Time: | 30 working days |
| Packaging Details: | Wooden or customized |
| Material: | SS304 |
| Machinery: | separation centrifuge |
| Discharge Type: | Spiral Screw Discharge |
| Item: | Industrial Separator Centrifuge Machine |
| Description: | Solid-liquid Separation Machine |
| Auxiliary Motor Power: | 7.5kw |
| Drum Length: | 1720L |
| Keywords: | fish oil decanter centrifuge |
| Capacity: | Up to 1000 cubic meters per hour |
| Power: | 30Kw |
| Company Info. |
| Jiangsu Longdai Environmental Protection Group Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
Decanter Centrifuge | Empowering Global Water Environmental Protection with Advanced Separation Technology
The decanter centrifuge—full name: Horizontal Spiral Discharge Sedimentation Centrifuge—is a high-efficiency device that achieves continuous solid-liquid separation based on the principle of centrifugal sedimentation.
Its core structure comprises four key components:
Its operation is defined by the “Four Continuities”:
| Stage | Description |
|---|---|
| Continuous Feeding | Slurry enters uniformly through the central feed pipe into the centrifuge chamber. |
| Continuous Separation | The high-speed rotating bowl generates a powerful centrifugal field, forcing denser solids to settle rapidly against the bowl wall. |
| Continuous Liquid Discharge | Clarified liquid continuously overflows from the liquid outlet. |
| Continuous Solid Discharge | The scroll conveyor pushes settled solids toward the conical end for uninterrupted cake discharge. |
This “four-continuity” design enables fully automatic, non-stop, and highly efficient operation—the hallmark of modern decanter centrifuges.
| Advantage Dimension | Technical Performance | Environmental & Social Value |
|---|---|---|
| High-Efficiency Separation | Separation factor up to 4000 G; cake dryness 25–35% DS | Reduces sludge volume by >80%, minimizing transport and secondary pollution risks |
| Continuous Operation | 24/7 automated running without frequent shutdowns | Ensures stable operation of large-scale treatment plants |
| Fully Enclosed Design | Zero leakage, zero odor emission | Meets the strictest environmental standards; improves workplace conditions |
| Intelligent Control | PLC + touchscreen + IoT remote monitoring | Reduces labor dependency; enhances operational management |
| Broad Applicability | Suitable for municipal, industrial, chemical, food, mining sectors | One platform serves diverse environmental needs |
Decanter centrifuges are not lab curiosities—they are frontline warriors in real-world environmental protection. Tens of thousands operate worldwide, tirelessly safeguarding water resources.
In sewage treatment plants, decanter centrifuges dewater waste activated sludge (typically >98% water) to <75% moisture content, reducing volume by over 80%—dramatically easing disposal via landfill, incineration, or transport.
Social Value: Behind every well-functioning wastewater plant is a reliable sludge dewatering system. The decanter centrifuge is its core engine.
In petrochemical, textile, paper, food, and pharma industries, it ensures compliant discharge, resource recovery, and water reuse.
Social Value: Industrial green transformation relies on clean production tech. Decanter centrifuges turn “waste into wealth.”
In river dredging and lake restoration projects, it rapidly separates high-solids slurries, enabling efficient silt removal and clear-water return.
Social Value: Every revitalized river and crystal-clear lake reflects the power of environmental technology.
In food processing, biotech, and mining, it recovers valuable materials—proteins, starch, oils, metal powders—turning waste streams into resources.
Social Value: Resources are finite, but recycling is infinite. Decanter centrifuges close the loop in circular production.
The following standard specifications apply to municipal wastewater, industrial effluent, and general solid-liquid separation applications.
| Model | Bowl Diameter (mm) | L/D Ratio | Max Speed (rpm) | Max G Force | Main Motor Power (kW) |
|---|---|---|---|---|---|
| LW-250 | 250 | 3.0 – 4.2 | 4500 | 2800 | 11 – 15 |
| LW-300 | 300 | 3.5 – 4.5 | 4200 | 3000 | 15 – 22 |
| LW-350 | 350 | 3.5 – 4.5 | 3800 | 3000 | 22 – 30 |
| LW-400 | 400 | 3.5 – 4.5 | 3600 | 3200 | 30 – 37 |
| LW-450 | 450 | 3.5 – 4.5 | 3200 | 3200 | 37 – 55 |
| LW-500 | 500 | 3.5 – 4.5 | 3000 | 3200 | 55 – 75 |
| LW-550 | 550 | 3.5 – 4.2 | 2800 | 3000 | 55 – 90 |
| LW-600 | 600 | 3.5 – 4.2 | 2600 | 2800 | 75 – 90 |
| LW-650 | 650 | 3.5 – 4.2 | 2400 | 2800 | 90 – 132 |
| LW-700 | 700 | 3.5 – 4.0 | 2200 | 2500 | 110 – 160 |
| LW-760 | 760 | 3.0 – 4.0 | 2000 | 2500 | 132 – 200 |
| LW-800 | 800 | 3.0 – 4.0 | 1900 | 2200 | 160 – 250 |
| LW-900 | 900 | 3.0 – 3.8 | 1700 | 2000 | 200 – 315 |
Based on municipal sludge (feed concentration: 2–5%; target cake DS ≥25%)
| Model | Typical Capacity (m³/h) | Cake DS (%) | Effluent SS (mg/L) |
|---|---|---|---|
| LW-250 | 3 – 8 | 20 – 25 | ≤ 500 |
| LW-300 | 5 – 12 | 20 – 25 | ≤ 500 |
| LW-350 | 10 – 25 | 20 – 25 | ≤ 500 |
| LW-400 | 15 – 30 | 22 – 28 | ≤ 300 |
| LW-450 | 20 – 45 | 22 – 28 | ≤ 300 |
| LW-500 | 25 – 55 | 25 – 30 | ≤ 300 |
| LW-550 | 30 – 70 | 25 – 30 | ≤ 300 |
| LW-600 | 40 – 85 | 25 – 30 | ≤ 300 |
| LW-650 | 50 – 100 | 25 – 30 | ≤ 200 |
| LW-700 | 60 – 120 | 25 – 32 | ≤ 200 |
| LW-760 | 80 – 150 | 25 – 32 | ≤ 200 |
| LW-800 | 100 – 180 | 25 – 32 | ≤ 200 |
| LW-900 | 120 – 220 | 25 – 32 | ≤ 200 |
| Category | Options | Recommended Application |
|---|---|---|
| Material | SS304 / SS316L / Duplex Stainless Steel | Based on feed corrosivity |
| Wear Protection | Hardfaced scroll / Ceramic inserts / Reinforced drum ribs | High sand or abrasive particles |
| Differential | Mechanical gearbox / Hydraulic differential | Stable vs. variable feed conditions |
| Drive System | Single motor + belt / Dual motors + VFD direct drive | Energy efficiency & control precision |
| Control System | Local push-button / PLC + HMI / IoT remote | Automation level requirements |
| Explosion Proof | Standard / ATEX / IECEx | Petrochemical, solvent-rich environments |
We don’t just sell equipment—we deliver end-to-end professional service throughout your project lifecycle.
Today, global water environmental protection is entering an era of
unprecedented opportunity.
Governments worldwide are increasing environmental investment,
tightening discharge standards, and accelerating green technology
adoption. As a core solid-liquid separation solution, the decanter
centrifuge carries both vast market potential and profound
responsibility.
We remain committed to our core values:
Technology Leadership · Quality First · Customer Focus · Green
Development
We will continue enhancing product performance and service excellence to contribute more Chinese innovation and solutions to global water sustainability.
We firmly believe:
✅ Every reliably operating decanter centrifuge is a guardian of blue skies and clean water.
✅ Every successfully delivered overseas project embodies win-win collaboration.
✅ Every technological breakthrough advances sustainable development.
Protecting water resources benefits the present and future generations.
No matter whether you’re in Europe, the Americas, Southeast Asia, the Middle East, or Africa—and no matter if you face challenges in municipal sludge, industrial wastewater, or ecological remediation—we stand ready to partner with you.
With professional decanter centrifuge solutions and sincere service, we invite you to join hands in safeguarding Earth’s most precious resource: water.
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