Author: GN Solidscontrol

GNLW654 Decanter Centrifuge Ready for Shipping to European Client

GN Separation has announced that a GNLW654 decanter centrifuge is now ready for shipment to a client in Europe. This delivery represents another step forward in supporting the global environmental and industrial sectors with advanced separation technologies designed for large-scale applications.

The GNLW654 model is one of GN’s largest decanter centrifuges, engineered for high-capacity solids-liquid separation. With a bowl diameter of 22 inches (550 mm) and a maximum length-to-diameter ratio of 4.2, this centrifuge offers exceptional performance for handling significant slurry volumes. It is widely used in industries such as wastewater treatment, mining, chemical processing, oil and gas, and municipal sludge dewatering.

One of the key advantages of the GNLW654 centrifuge is its ability to operate at a high G-force, providing efficient separation even with challenging feed materials. The unit is equipped with a precision-machined scroll and a wear-protected bowl to ensure long-term operation under abrasive conditions. Its drive system allows variable bowl and differential speeds, giving operators precise control over dryness and throughput.

For this project, GN’s engineering team customized the centrifuge to meet the client’s process requirements and comply with European quality standards. All electrical components, including the control cabinet, are CE-certified, ensuring compliance with European regulations. The machine was thoroughly tested before shipment to guarantee reliability and performance.

To facilitate transportation and on-site installation, the centrifuge will be delivered in a skid-mounted configuration. This setup simplifies integration into existing plants and reduces commissioning time.

GN Separation continues to expand its presence in Europe, offering not only equipment but also full technical support and spare parts availability. The GNLW654 is part of GN’s extensive product line, which includes decanter centrifuges ranging from 9 inches to 30 inches in bowl diameter, as well as complete sludge treatment systems.

With this shipment, GN demonstrates its ability to deliver high-quality, turnkey solutions for demanding separation processes worldwide. The company remains committed to innovation, focusing on developing reliable equipment that meets strict environmental standards while optimizing operational efficiency.

 

GNLW364-VFD Sludge Dewatering Centrifuge for Overseas Environmental Company

The GNLW364-VFD sludge dewatering centrifuge is a versatile and reliable solution for environmental companies worldwide that need efficient solids-liquid separation. Designed by GN Separation, this equipment is widely used in industries such as wastewater treatment, environmental remediation, municipal services, and industrial sludge management. Its primary function is to reduce the moisture content of sludge, improving disposal efficiency and lowering overall handling costs.

The GNLW364 model features a bowl with a 14-inch diameter and a length-to-diameter ratio of 4.2:1, ensuring a high separation factor and optimal performance. Its variable frequency drive (VFD) control system allows operators to adjust the bowl and scroll speeds according to the type of sludge and required dryness. This flexibility makes it a preferred choice for companies dealing with a variety of waste streams and sludge characteristics.

One of the key advantages of the GNLW364-VFD centrifuge is its ability to work continuously with minimal operator intervention. The robust stainless steel construction, precision-machined components, and wear-resistant protection on the scroll and discharge ports contribute to its durability in demanding conditions. Additionally, the machine’s automated control system simplifies operation, enabling technicians to optimize performance in real-time.

For overseas environmental companies, equipment reliability and ease of maintenance are critical factors. GN Separation provides the centrifuge with global service support, a modular design for straightforward spare part replacement, and clear documentation for installation and operation. This ensures smooth integration into existing sludge treatment systems, whether at municipal plants, industrial sites, or environmental projects abroad.

The GNLW364-VFD is not only cost-effective but also environmentally beneficial. By reducing sludge volume and improving separation efficiency, it supports sustainable practices and minimizes environmental impact. Its energy-efficient operation and compact design also make it suitable for mobile treatment systems or containerized units often used in remote or temporary projects.

In summary, the GNLW364-VFD sludge dewatering centrifuge is a robust, efficient, and adaptable piece of equipment tailored for global environmental companies. Its advanced control system, durable construction, and proven performance in sludge treatment make it an ideal solution for organizations seeking reliable solids-liquid separation technology for diverse and challenging applications.

 

The Role of the Hydraulic Solid-Liquid Separation Centrifuge in Core Drilling Exploration

In the mining and geological exploration industry, core drilling processes require specialized equipment to ensure sample quality while optimizing operational efficiency. One of the most important pieces of equipment for this purpose is the hydraulic solid-liquid separation centrifuge, specifically designed for core sampling and exploration operations.

The operating principle relies on centrifugal force to separate solid and liquid phases within drilling fluids. During core drilling, fine rock cuttings are generated, which, if not properly controlled, can affect fluid stability and compromise both sample quality and overall drilling performance. The hydraulic centrifuge efficiently removes these fine solids, keeping the fluid within the required parameters.

 

Key Benefits

  • Core Sample Protection: by maintaining proper fluid quality, the centrifuge prevents contamination or alteration of the original geological sample.
  • Extended Drilling Fluid Life: reducing solids content allows fluids to be reused longer, lowering replacement costs.
  • Operational Risk Reduction: cleaner drilling fluids minimize torque issues, stuck pipe events, and wellbore instability.
  • Compact and Portable Design: these centrifuges are often integrated into modular systems, making them highly adaptable for remote exploration sites.

Applications

The hydraulic centrifuge is not only useful in mining but also in geotechnical drilling, hydrogeological studies, and other projects requiring high-quality core samples for detailed analysis.

GN Solids Control provides reliable solid-liquid separation solutions tailored for core drilling exploration. The company’s centrifuge technology is designed to enhance efficiency, reduce operational costs, and ensure consistent and reliable results in exploration projects.

In conclusion, the hydraulic solid-liquid separation centrifuge has become an essential tool for exploration companies seeking to optimize resources and ensure dependable sampling results.

 

A New Test Workshop for Smarter Material Separation Decisions

When choosing separation equipment, real-world performance matters more than datasheets. To support evidence-based selection, our new material separation test workshop is now completed and ready for customer trials. The facility brings together five dedicated test modules designed to mirror the operational challenges found in mining, drilling fluids management, and slurry handling. Whether you send representative samples to our lab or prefer on-site trials at your location, the goal is the same: confirm process outcomes, quantify performance, and de-risk your investment before scaling up.

What’s inside the workshop

  1. Mining Vibrating Screen Test Module
    This station evaluates screening behavior for ores, tailings, and mineral slurries. We can vary feed density, particle size distribution, and screen aperture to map cut points and throughput. Results typically include mass balance, screen efficiency, moisture of oversize/undersize, and blinding tendency under different conditions.
  2. Drilling Shale Shaker Test Module
    For drilling fluids, the shaker test module helps assess solids removal efficiency across API screen sizes, fluid rheology changes, and deck motion parameters. We record fluid loss, screen life indications, and the effect on downstream centrifugation requirements—useful for optimizing screen selection and solids control strategy.
  3. Decanter Centrifuge Test Module
    Here we quantify separation under controlled G-force, differential speed, and feed rate. We measure centrate clarity, cake dryness, torque trends, and polymer (if any) consumption. The outcome is a performance envelope that links solids loading to achievable cut size and energy use.
  4. Combined Separation Module (Shaker + Centrifuge)
    Many processes benefit from staged separation. This module allows us to test upstream screening followed by centrifugation, validating how primary cut removal improves centrifuge efficiency, reduces wear, and lowers power and chemical demand. We document the combined mass balance and incremental gains.
  5. Solids Vacuum Pump Test Module
    For viscous, abrasive, or high-solids slurries, pneumatic vacuum pumps can be decisive. This station profiles suction lift, transfer distance, and cycle frequency versus material properties, helping determine the practical limits for remote or confined transfer tasks. 

How the trials work

Customers may ship samples (with MSDS and handling instructions) for controlled laboratory testing, or request field trials at their sites when scale or logistics make in-house testing impractical. Before any test, we align on objectives: target cut size, clarity, moisture, throughput, footprint, and power constraints. We then design the matrix—screen sizes, rotational speeds, feed densities—and run iterative trials to reach a robust operating window.

Deliverables you can act on

We provide a concise report with:

  • Feed characterization: PSD curves, solids content, rheology notes.
  • Operating setpoints and corresponding KPIs (yield, clarity, cake dryness, energy, wear indications).
  • Recommended equipment configuration and scale-up guidance.
  • Observations on maintenance, safety, and consumables.

This workshop is not about selling a model—it is about reducing uncertainty. With transparent data and repeatable methods, you can select equipment with confidence and document the basis for your decision.

If you would like to schedule a sample-based test or an on-site trial, let us know your objectives and constraints. We’ll propose a test plan that focuses on measurable outcomes and practical recommendations.

 

GN Separation at Pollutec Lyon 2025: what to expect and why it matters

From October 7–10, 2025, GN Separation will exhibit at Pollutec Lyon 2025, Eurexpo Lyon (Avenue Louis Blériot, 69686 Chassieu Cedex, France), Booth H3-E185. Pollutec is a leading European platform for environmental technologies, with a strong focus on water/wastewater treatment, circular economy, decarbonization, and waste valorization. For practitioners seeking robust, scalable solid-liquid and three-phase separation, the show is an ideal setting to compare equipment and real-world outcomes.

Technology focus

GN will showcase a portfolio covering the full sludge and effluent handling chain:

  • Decanter centrifuges: high-capacity bowls with optimized beach/taper geometries to improve clarification and cake dryness while maintaining competitive specific energy consumption.
  • Tricanters (three-phase): simultaneous separation of solids, water, and an organic phase (oils/fats), suitable for industrial wastewater, biodiesel, and by-product recovery.
  • Disc stack separators: high g-force polishing to cut residual suspended solids and reduce COD/BOD in final streams.
  • Integrated systems: tanks, polymer make-up, progressive cavity pumps, conveyors, and PLC/SCADA for automated operation and traceability.

Key applications

What visitors will see

  • Typical operating ranges (g-force, rpm, cut size d50, power, flow rates).
  • Solids control strategies (differential speed, dam adjustment, polymer optimization).
  • O&M best practices: polymer selection, mass balance, clean-in-place, wear management, and predictive maintenance.
  • Reference cases demonstrating CAPEX/OPEX reduction via standardized equipment and plug-and-play modules.

Why Pollutec

Pollutec’s value lies in technical benchmarking and peer exchange with operators, EPCs, and regulators. It’s a chance to contrast configurations (decanter vs. tricanter vs. disc stack), define selection criteria, and review performance indicators (solids in discharge, centrate/overflow clarity, energy per m³, and total cost of ownership).

If you plan to attend, we invite you to stop by Booth H3-E185 to discuss your process challenges and review data-driven configurations. We can also arrange a technical meeting during the show to review samples, flow envelopes, and effluent quality targets.

Pollutec Lyon 2025 | October 7–10 | Eurexpo Lyon | Booth H3-E185.

 

Shipment of GNLW223D Mini Decanter Centrifuges and Mud Recycling Units to Europe

GN Solids Control recently completed a shipment of compact solids control equipment for a client in Europe. The package includes four GNLW223D mini decanter centrifuges and four mud purification systems, consisting of two GNMS-600B units and two GNMS-1000B units. These systems are designed to improve solids separation during drilling operations such as HDD, geothermal drilling, and water well projects.

The GNLW223D centrifuge is the most compact model in GN’s decanter centrifuge lineup. Featuring a 9-inch bowl diameter, it is ideal for sites with limited space or where low-volume but high-efficiency solids separation is required. Despite its small footprint, it delivers high performance, with a maximum bowl speed of up to 4,500 RPM, ensuring efficient removal of ultra-fine solids from drilling fluids.

The GNMS-600B and GNMS-1000B mud purification systems are skid-mounted units that combine shale shakers with desanding and desilting hydrocyclones, providing three-stage solids control in a compact design. The 600B is suitable for mid-range flow rates, while the 1000B model is built for higher capacity operations. Both systems are designed for mobility and easy setup, making them suitable for various field applications.

These systems play a critical role in maintaining the quality of drilling mud, reducing water consumption, and minimizing equipment wear. By efficiently removing unwanted solids, they help stabilize boreholes and extend the lifespan of drilling tools. Additionally, they support compliance with increasingly stringent environmental regulations by reducing waste and fluid contamination.

This shipment demonstrates GN Solids Control’s continued expansion in the international market and its commitment to delivering dependable, field-proven solutions for cleaner and more efficient drilling fluid management.

 

Four Sets of Workover Solid Control Equipment Delivered to an Indonesian Client

GN Solids Control has recently completed the manufacturing and shipment of four sets of workover solids control equipment to a valued client in Indonesia. This project highlights our ability to provide complete mud management solutions for well servicing operations, ensuring reliable performance even in challenging field conditions.

Each solids control set is equipped with a carefully selected combination of units to optimize drilling fluid cleaning and enhance operational efficiency:

  • 8 GNZS593K Shale Shakers
    These high-performance shakers serve as the primary solids separation stage. With excellent handling capacity, they efficiently remove large particles, keeping drilling mud in optimal condition for reuse.
  • 4 GNZS593K-2S12N Mud Cleaners
    Designed as an integrated desander and desilter unit, this model offers fine solids separation after the initial shaker processing. Its compact and modular design simplifies both operation and maintenance in workover projects.
  • 4 Vacuum Degassers
    Removing entrained gases is critical to maintain mud stability and prevent pump cavitation. Our vacuum degassers ensure a consistent mud flow and enhance drilling fluid quality during operations.
  • 8 Jet Mud Mixers
    These units are essential for the fast and uniform mixing of drilling fluids with additives, ensuring that the mud meets the required specifications for each stage of the workover operation

The delivery of these four complete sets to Indonesia demonstrates GN Solids Control’s ongoing commitment to supporting international clients with reliable, field-proven equipment. By integrating our solids control solutions, operators can maximize mud reuse, reduce operational costs, and minimize environmental impact.

This successful project is another example of our expertise in providing turnkey solids control packages, tailored to the specific demands of oil and gas operations worldwide.

 

GNLWS364 Three-Phase Decanter Centrifuge Delivered to an Overseas Customer

GN Separation has recently delivered one unit of the GNLWS364 three-phase decanter centrifuge to an international customer, marking another step forward in our mission to provide advanced separation technologies worldwide. This machine is designed for continuous separation of solids, light liquids, and heavy liquids — ideal for industries such as food processing, chemical recovery, wastewater treatment, and more.

Technical Overview

The GNLWS364 is a precision-engineered three-phase decanter centrifuge capable of separating materials with different densities in a single, continuous process. It operates based on the difference in specific gravity between the solid and two immiscible liquid phases.

  • Bowl Diameter: 360 mm
  • Bowl Length: 1440 mm
  • Max Bowl Speed: 4500 RPM
  • G-Force: Up to 3200 G
  • Main Motor Power: 30 kW
  • Back Drive: 15 kW
  • Material: Duplex stainless steel for the bowl and wear-resistant alloy for critical parts

This machine adopts a horizontal design with a high-efficiency bowl, internal scroll conveyor, and a specially designed centripetal pump system to discharge the clarified liquids. The result is a highly efficient separation process even for complex mixtures with low solid content and minimal density differences.

Application Example

The overseas customer who received this unit specializes in used oil recycling and wastewater treatment. The GNLWS364 will be integrated into their continuous processing line to separate water, oil, and solid particles from oily sludge. Thanks to the adjustable differential speed and feed rate, the system can adapt to feedstock variability without interrupting production.

Advantages for International Operations

The GNLWS364 offers several key benefits for overseas clients:

  • Plug-and-play designfor easy installation
  • Integrated control panelwith PLC + HMI interface for remote operation and monitoring
  • Global voltage compatibility(can be customized to 380V/400V/460V – 50/60Hz)
  • Minimal maintenance requirementsthanks to wear-resistant components

The successful delivery of the GNLWS364 to an overseas partner demonstrates GN’s commitment to delivering dependable, efficient, and customizable separation solutions. Whether you operate in environmental services, food production, or energy sectors, our three-phase decanter centrifuge technology can be tailored to fit your needs.

 

GN Non-Excavation Mud Recycling Systems Delivered to the Middle East

GN Solids Control recently completed the delivery of a complete non-excavation (trenchless) mud treatment system to a customer in the Middle East. This shipment reflects the growing demand for high-efficiency and environmentally responsible solids control solutions in horizontal directional drilling (HDD) and other trenchless operations.

Overview of the Delivery

The equipment package includes two (2) complete 1000 GPM mud recycling systems, two (2) storage tanks, and three (3) mixing tanks. Each 1000GPM system is fully integrated with the essential components required to process drilling mud and reduce environmental impact.

Key Components:

✅ 1000 GPM Mud Recycling Systems (2 Sets)

Each system is designed for processing up to 1000 gallons per minute and includes:

  • 2 shale shakers: Efficiently remove large solids from the drilling fluids.
  • 1 mud cleaner: Combines desander and desilter hydrocyclones for finer solids separation.

This configuration ensures high mud recycling efficiency and supports continuous drilling with reduced downtime.

✅ 2 Mud Storage Tanks

These tanks serve as reserve storage for processed drilling fluids. They are designed to maintain optimal mud volume and provide flexibility during the drilling process.

✅ 3 Mixing Tanks

GN’s mixing tanks are used to prepare fresh drilling fluids or adjust the properties of the recycled mud. They come with mud agitators and mixing hoppers for efficient fluid blending and chemical dosing.

Advantages of GN Trenchless Mud Systems

  • Compact footprint for job sites with limited space.
  • Modular design, easy to transport and install.
  • Energy efficient components reduce operational costs.
  • Customizable configuration based on the client’s drilling program.

Supporting Trenchless Operations in Harsh Environments

The Middle East market often presents challenges such as high temperatures and abrasive ground formations. GN’s trenchless mud systems are built to operate reliably under such conditions, with robust materials and proven performance in demanding drilling applications.

With this delivery, GN Solids Control continues to demonstrate its commitment to providing top-tier solids control equipment for international trenchless drilling projects.

 

GN VFD Drilling Fluids Decanter Centrifuge

GN Separation recently supplied decanter centrifuges to an Asia-based drilling company to support its solids control and drilling fluid management operations. The delivery included 2 sets of GNLW363D-VFD centrifuges and 1 set of GNLW453D-VFD centrifuge. These units will be used on drilling sites to optimize the separation of solids from drilling mud, reduce waste, and improve overall fluid recycling.

About the Models

✅ GNLW363D-VFD
This is GN’s workhorse 14-inch bowl VFD-controlled decanter centrifuge. It is designed for fine solids separation in drilling fluids processing. The variable frequency drive (VFD) allows operators to adjust the bowl speed and differential speed, optimizing the separation cut point depending on the mud properties. Typical bowl speeds can reach up to 3200 RPM. The 363D-VFD is widely used in oil and gas drilling solids control systems, offering reliable performance even under high solids loading.

✅ GNLW453D-VFD
This is a 18-inch bowl VFD decanter centrifuge designed for higher capacity requirements. With a larger bowl diameter and longer beach, it can process higher flow rates while maintaining good separation efficiency. The VFD control allows flexible adjustment of operating parameters, making it suitable for different mud weights and drilling conditions.

Application in Drilling Operations

Drilling operations require precise solids control to maintain the quality of the drilling mud and reduce disposal costs. Decanter centrifuges are a critical component in modern solids control systems. They remove fine and ultra-fine solids that cannot be separated by shale shakers or desanders alone. By deploying GN’s VFD-controlled centrifuges, the drilling company can:

  • Maintain optimal mud weight and properties
  • Minimize dilution costs
  • Reduce waste volume for disposal
  • Improve overall drilling efficiency

Advantages of VFD-Controlled Centrifuges

Variable Frequency Drive (VFD) technology provides the flexibility to adapt centrifuge speed to different fluid conditions. Operators can slow down the bowl to reduce wear when handling lighter mud or increase speed for finer separation. The control panel also allows adjusting conveyor differential speed for better solids dryness.

Why GN Decanter Centrifuges?

GN Separation has years of experience manufacturing decanter centrifuges specifically for the oil and gas industry. Its centrifuges are designed for field conditions, offering robust construction, stainless steel bowls, tungsten carbide protection, and user-friendly controls. The VFD models are skid-mounted for easy integration into existing solids control systems.

By choosing GN’s GNLW363D-VFD and GNLW453D-VFD units, the Asia-based drilling company strengthens its solids control capability, ensuring better environmental compliance and lower operating costs on its drilling projects.