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Jiangsu Longdai Environmental Protection Group Co., Ltd.

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China High-Performance Decanter Centrifuge for Global Wastewater Treatment | Sludge
China High-Performance Decanter Centrifuge for Global Wastewater Treatment | Sludge

  1. China High-Performance Decanter Centrifuge for Global Wastewater Treatment | Sludge

High-Performance Decanter Centrifuge for Global Wastewater Treatment | Sludge

  1. MOQ: 1Set
  2. Price: 15000USD-25000USD
  3. Get Latest Price
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
Collocation Double motor with double transduce
Weight 1400
Features Continuous operation, high efficiency, low maintenance
Discharge Type Spiral Screw Discharge
Use solids control centrifuge
Core Components PLC,Motor, Pressure vessel, Bearing
Item Industrial Separator Centrifuge Machine
Description Solid-liquid Separation Machine
Brand Name Longdai
Model Number LW
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

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
Collocation Double motor with double transduce Weight 1400
Features Continuous operation, high efficiency, low maintenance Discharge Type Spiral Screw Discharge
Use solids control centrifuge Core Components PLC,Motor, Pressure vessel, Bearing
Item Industrial Separator Centrifuge Machine Description Solid-liquid Separation Machine
Brand Name Longdai Model Number LW
Place of Origin China

1. Introduction: Why Decanter Centrifuges Are the Core of Water Treatment

Amid accelerating global industrialization and urbanization, environmental regulations are becoming increasingly stringent. Efficient water treatment equipment has thus become essential. The decanter centrifuge, as a core solid-liquid separation technology, is steadily replacing traditional belt filter presses and plate-and-frame filter presses due to its closed-system continuous operation, high throughput, and superior separation efficiency.

For procurement professionals with extensive international experience, selecting a decanter centrifuge with high wear resistance, low energy consumption, and adaptability to diverse operating conditions is key to reducing operational expenditure (OPEX).


2. Key Advantages: Why Choose Our Decanter Centrifuges?

Fully Automatic Continuous Operation – 24/7 Reliability
Equipped with dual-motor, dual-VFD drive technology, our centrifuges enable fully automated, uninterrupted feeding, separation, and sludge discharge—eliminating the need for frequent manual screen cleaning and significantly boosting productivity.

Superior Wear & Corrosion Resistance
To handle abrasive solids like sand commonly found in sludge:

  • Scroll flights feature hardfacing with tungsten carbide or replaceable ceramic wear tiles.
  • Bowl construction uses high-grade materials such as Duplex Stainless Steel (2205/2507) or 316L stainless steel, offering a service life far exceeding standard alternatives.

Advanced Dual-Motor, Dual-VFD with Common DC Bus Technology
Our innovative drive system not only enables infinitely variable differential speed control (adapting to varying feed solids concentrations) but also features regenerative energy feedback:

During braking, the auxiliary motor acts as a generator, feeding recovered energy back to the main motor—delivering significant energy savings, especially valuable in high-electricity-cost markets like Europe and North America.

Optimized High L/D Ratio for Superior Clarification
An extended length-to-diameter (L/D) ratio increases residence time inside the bowl, ensuring exceptionally low solids content in the centrate—meeting even the strictest discharge standards.


3. Applications (Applicable Industries)

Our decanter centrifuges have been successfully deployed in global environmental and industrial projects, particularly in:

  • Municipal & Industrial Wastewater Treatment: Thickening and dewatering of waste activated sludge (WAS), digested sludge.
  • Food & Beverage: Separation of brewer’s spent grain, fruit juice clarification, vegetable oil (e.g., palm oil) purification.
  • Chemical & Mining: PVC, titanium dioxide (TiO₂), kaolin classification; barite and gypsum dewatering.
  • Oil & Gas / Drilling: Crude oil desanding, oily sludge treatment, drilling mud conditioning.

4. Conclusion

In today’s global water treatment market—driven by demands for low carbon footprint, high efficiency, and intelligent operation—the decanter centrifuge represents the optimal upgrade for your solid-liquid separation process.

We offer end-to-end lifecycle support, from model selection and installation to commissioning and after-sales service.

Contact us today to receive a customized separation solution tailored to your specific application!


Part II: Comprehensive Technical Data Sheet

The following specifications cover mainstream models—from pilot-scale to large industrial units. Parameters can be fine-tuned based on your actual product series.

Technical Specifications Table

Model Bowl Diameter (mm) L/D Ratio Max Speed (rpm) Max G-Force Capacity (m³/h) Main Motor Power (kW) Weight (kg)
LW-250 250 3.6 4,800 3,226 2 – 5 7.5 – 11 ~1,000
LW-350 350 3.7 4,200 3,969 4 – 12 15 – 18.5 ~1,800
LW-430 430 4.0 4,000 4,032 10 – 30 30 – 37 ~3,000
LW-520 520 4.2 3,500 3,560 15 – 50 45 – 55 ~4,500
LW-650 650 4.4 2,800 2,854 30 – 80 75 – 90 ~7,000
LW-750 750 4.5 2,500 2,620 50 – 120 110 – 132 ~11,000

Detailed Performance Parameters

Parameter Description
Separation Principle Sedimentation centrifugation
Feed Solids Concentration 0.5% – 40% (varies by material type)
Differential Speed Range 1 – 35 rpm (infinitely adjustable)
Differential Speed Accuracy ±0.5 rpm (closed-loop control)
Scroll Material SS304 / SS316L base + tungsten carbide hardfacing
Bowl Material Duplex 2205 / Super Duplex 2507 / SS316L
Bearings Original SKF (Sweden) or FAG (Germany)
Drive System Dual-motor, dual-VFD with common DC bus
Safety Protections Bearing temperature monitoring, vibration protection, over-torque control
Noise Level < 85 dB(A) (with acoustic enclosure)

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Seller

  • Year Established:

    2010

  • Total Annual:

    7000000-8000000

  • Employee Number:

    64~100

  • Ecer Certification:

    Verified Supplier

       Jiangsu Longdai Environmental Protection Group Co., Ltd. is an environmental protection equipment manufacturer with more than 15 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three br...        Jiangsu Longdai Environmental Protection Group Co., Ltd. is an environmental protection equipment manufacturer with more than 15 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three br...

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  • Jiangsu Longdai Environmental Protection Group Co., Ltd.
  • No.28, Chengwen West Road, Gaocheng Town, Yixing City, Jiangsu Province, China
  • https://www.longdaiwwt.com/

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