At the recently concluded IE EXPO CHINA 2025, GN Separation garnered significant attention, successfully forging new business collaborations and facilitating in-depth technological exchanges with both familiar and new industry contacts. The event served as an ideal platform for GN Separation to highlight its cutting-edge equipment designed specifically for environmental water treatment and solid waste management.

During the exhibition, GN Separation showcased three flagship products: the Solids Vacuum Pump, the Fully Hydraulic Decanter Centrifuge, and the 3 Phase Decanter Centrifuge. Each of these devices was engineered to tackle pivotal challenges in environmental engineering, spanning municipal sludge dewatering to intricate oil-water-solid separations.

Solids Vacuum Pump: A Multi-Faceted Solution for Material Handling

The fully pneumatic Solids Vacuum Pump stood out as a groundbreaking innovation, renowned for its reliable and efficient handling of a wide array of materials. Its applications extend across municipal and industrial sectors, encompassing:

• Sewage Sludge Removal: Ideal for clearing sedimentation tanks in wastewater treatment facilities.
• Construction Slurry Transport: Efficiently managing heavy mud from construction sites.
• Solid Waste Disposal: Capable of conveying granular solids such as sand and powdered residues.

Designed for durability, the pump operates without any electrical components, ensuring safety in potentially explosive environments and reducing long-term maintenance expenses. Its ability to adapt to varying material densities and particle sizes renders it a versatile solution for dynamic waste streams.

Fully Hydraulic Decanter Centrifuge: A Customized Dewatering Solution

The Fully Hydraulic Decanter Centrifuge by GN Separation distinguishes itself from conventional electric dewatering centrifuges by dynamically adjusting torque based on the characteristics of the feed material, thereby optimizing performance across a range of solid contents. Its key advantages include:

• Adaptive Torque Control: Ensures consistent cake dryness across diverse sludge types.
• Maintenance-Free Hydraulic Gearbox: Eliminates the need for routine servicing, thus lowering operational costs over time.
• Explosion-Proof Design: Certified for use in hazardous environments, including oilfields and chemical plants.

These features position it as a top choice for municipalities and industries seeking reliable and cost-effective dewatering solutions.

3 Phase Decanter Centrifuge: Precision Separation for Complex Waste Streams

The 3 Phase Decanter Centrifuge addresses the escalating demand for advanced separation technologies in environmental applications. Engineered to separate light liquid, heavy liquid, and solid phases simultaneously, it excels in:

• Kitchen Waste Oil Recovery: Extracting edible oils from food processing byproducts.
• Oil-Water Separation: Enhancing the efficiency of wastewater treatment in industrial settings.
• Oily Sludge Treatment: Recovering oil from contaminated sludge in refineries and petrochemical facilities.

By minimizing waste volume and recovering valuable resources, this centrifuge supports the principles of a circular economy while ensuring compliance with stringent environmental regulations.

Strategic Collaborations: Forging Alliances with Industry Pioneers

Beyond product demonstrations, GN Separation’s team engaged in comprehensive discussions with visitors, exploring potential partnerships in emerging markets and research endeavors. The company’s dedication to innovation was further emphasized through collaborations with universities and R&D institutions, focusing on the development of sustainable separation technologies.

GN Separation is proud to announce the successful shipment of one of our large model dewatering decanter centrifuges, the GNLW654-VFD, to an overseas client for industrial sludge treatment. This delivery highlights the increasing global demand for GN's high-performance separation equipment and showcases our technical expertise in providing efficient, reliable, and energy-saving solid-liquid separation solutions.

Powerful Performance for Demanding Applications

The GNLW654-VFD is part of GN’s T Series dewatering decanter centrifuges, engineered with an optimized beach angle of 8.5 degrees to enhance dewatering efficiency and discharge drier solids. This model is specifically designed to handle materials with large particle size, high solid-liquid density difference, high concentration, and low viscosity, making it ideal for municipal and industrial wastewater, oily sludge, drilling mud, chemical wastewater, sand washing water, and more.

Key Features of the GNLW654-VFD

• Large Bowl Design: With a 650 mm (25.6 inch) bowl diameter and 2730 mm (107.5 inch) length, the GNLW654 offers high throughput capacity and effective sludge dewatering performance.

• High G-Force: Operating at a max speed of 2873 RPM, this model generates a G-force up to 3000G, facilitating rapid and thorough separation.

• Premium Materials: The bowl and screw are made of duplex stainless steel (SUS2304 or SUS2205) through centrifugal casting, offering superior corrosion and wear resistance compared to conventional SS304 or SS316.

• Energy-Efficient & Low Noise: The design includes a deep liquid pool, optimized cone angle, and anti-turbulence structures, contributing to better clarity, reduced energy consumption, and quieter operation.

• Wear Protection: The solids discharge ports and screw flights are protected with tungsten carbide sleeves and replaceable wear-resistant tiles, ensuring long service life even under harsh working conditions.

• Smart Control: Equipped with a VFD+PLC+HMI control panel, the centrifuge allows real-time monitoring of vibration, temperature, torque, and lubrication status. Emergency protocols such as automatic plugging and shutdown procedures are in place for safe operation.

• Space-Saving Layout: Both motors are installed at one end of the unit for compact design and easier maintenance access.

Reliable Dewatering for a Wide Range of Materials

GN’s T Series decanter centrifuges are versatile and widely applied in industries such as:

• Municipal wastewater and sludge treatment

• Oilfield drilling fluids and oily sludge recovery

• Sand and mineral washing

• Steel-making and precision casting wastewater

• River and lake dredging

• Chemical, pharmaceutical, and food industry wastewater

• Salt and kaolin recovery

• Biomass, aquaculture, and more

For materials with fine particles, GN also recommends using flocculants to enhance solid aggregation before centrifugation, enabling more efficient separation.

Customized & Turnkey Solutions

In addition to standalone centrifuges, GN Separation offers complete dewatering process solutions by integrating our wide range of separation and conveying equipment. We support system customization based on project-specific requirements and deliver comprehensive support from equipment selection to on-site service.

About GN Separation

As a trusted manufacturer and exporter of separation equipment, GN Separation has supplied decanter centrifuges and related systems to over 80 countries worldwide. We take pride in offering reliable technology, premium materials, and responsive support to help our clients succeed in their environmental and industrial challenges.

GN Separation looks forward to working with you on your next dewatering or solid-liquid separation project. For more information about the GNLW654-VFD or other models in our T Series, feel free to contact us today.

GN Separation has recently achieved a significant milestone by successfully completing the assembly and rigorous factory testing of a mud dewatering centrifuge package tailored for engineering slurry applications. This comprehensive system, featuring a GN-engineered Decanter Centrifuge Model GNLW654-VFD and a complementary three-chamber flocculant dosing unit Model GNSJY2000, is scheduled for shipment to an international client in the near future.

The Decanter Centrifuge GNLW654-VFD is meticulously crafted to manage the substantial volumes of muddy mixtures generated in tunnel boring machine (TBM) operations, river and lake dredging projects, and hydraulic excavation endeavors. These processes yield considerable amounts of water-laden sludge, necessitating specialized machinery for efficient solid-liquid separation. The GNLW654-VFD model stands out in this domain, offering robust processing capabilities that meet the stringent requirements of large-scale engineering projects.

A pivotal attribute of the GNLW654-VFD is its Variable Frequency Drive (VFD) control panel, which offers unmatched adaptability in operational settings. This sophisticated control system empowers operators to dynamically adjust the centrifuge's rotational speed based on the unique properties of the incoming slurry and the targeted processing results. By fine-tuning the centrifuge's performance in real-time, the VFD technology guarantees optimal efficiency and effectiveness in separating solids from liquids, even amidst fluctuating conditions.

In conjunction with the centrifuge, the GNSJY2000 automatic polymer dosing unit plays a crucial role in enhancing the separation process. This three-chamber system is expertly designed to precisely formulate and dispense flocculant chemicals, which are instrumental in aggregating fine particles within the slurry. By effectively binding these microscopic particles together, the flocculant streamlines their removal during the centrifugation process. The GNSJY2000's integrated dosing pump ensures precise and consistent delivery of the flocculant, directly introducing it into the centrifuge to maximize the capture and separation of fine particles. This leads to a purer, more manageable solid output and a marked improvement in separation efficiency.

The triumphant conclusion of factory testing for the GN Decanter Centrifuge GNLW654-VFD and GNSJY2000 automatic flocculant dosing unit underscores GN Separation's engineering expertise and dedication to environmental responsibility. As the company gears up to dispatch this package to its overseas client, it remains steadfast in its mission to deliver solutions that foster sustainable advancement in the engineering and environmental realms.

GN Separation is pleased to announce the successful completion of assembly and factory acceptance testing for two GNLS3061 large linear vibrating screens, scheduled for delivery to a prominent domestic mining company ahead of schedule. These cutting-edge screens are engineered to address the rigorous demands of the mining and mineral processing sectors, delivering unmatched efficiency, robustness, and operational flexibility across diverse applications.

Applications Across Key Industries
The GNLS3061 series is optimized for wet screening, dewatering, desliming, and tailings dry stacking in:

• Mineral processing
• Coal preparation
• Sand and aggregate production
• Building materials manufacturing
• Chemical engineering processes
• 

Key Innovations Driving Performance

1. Advanced Wallboard Architecture
   • Weld-Free Construction: High-strength alloy steel plates with exceptional impact resistance are assembled using imported HUCK rivets with hydraulic tensioning, eliminating welding-induced stress and ensuring structural integrity.
   • Enhanced Durability: This design minimizes fatigue failure risks, extending service life and reducing downtime.
2. Superior Wear and Impact Protection
   • Polyurea-Coated Crossbeams: Utilizing state-of-the-art U.S. spraying technology, these crossbeams offer unparalleled erosion and wear resistance.
   • Rubberized Impact Zones: Critical components are reinforced with rubber elements, safeguarding against abrasion and extending operational longevity.
3. High-Performance Excitation System
   • Helical Gearbox Exciters: Deliver powerful vibration forces with minimal noise, ensuring stable operation and extended equipment lifespan.
   • Adjustable Amplitude: Eccentric blocks positioned externally allow for rapid amplitude tuning via counterweight adjustments, optimizing screening efficiency.
4. Modular Polyurethane Screen Panels
   • Interchangeable Design: Facilitates seamless replacement and customization to meet specific material screening requirements, reducing maintenance time and costs.
5. Tailored Configuration Flexibility
   • Single-Deck and Double-Deck Options: Offer versatile solutions for diverse material classification needs, enabling clients to enhance processing efficiency and product quality.

Commitment to Client Success
GN Separation is confident that the GNLS3061 screens will exceed client expectations by delivering:

• Reliable Performance: Backed by rigorous testing and quality assurance processes.
• Lower Maintenance Costs: Thanks to durable materials and modular design.
• Improved Operational Efficiency: Through optimized screening performance and ease of use.

For Further Inquiries
To learn more about GN’s mining vibrating screen solutions, please contact our team.