This week, GN Separation marked a significant milestone by successfully finishing the assembly of four GNLW224 decanter centrifuges, along with their corresponding polymer dosing units, at its manufacturing facility. These newly assembled units are scheduled to go through a rigorous final inspection and acceptance test, which will be carried out by an overseas client next week.

Product Profile

The GNLW224 holds the distinction of being the smallest-capacity model in GN Separation’s extensive range of decanter centrifuges, specifically designed for wastewater treatment applications. It is a masterpiece of engineering, crafted to deliver consistent and reliable performance even in confined spaces. With a maximum rotational speed of 5,000 RPM, this centrifuge is highly efficient in separating solid and liquid phases from a diverse array of industrial and municipal wastewater streams.

Each centrifuge is outfitted with a state-of-the-art 3-variable-frequency drive (VFD) control cabinet. This cutting-edge feature grants operators the ability to precisely adjust critical parameters, such as bowl speed, differential speed, and feed pump flow rate. By making these fine adjustments, operators can tailor the processing conditions to suit the unique characteristics of the materials being treated and meet specific operational requirements.

Integrated Polymer Dosing Units: Elevating Efficiency

To enhance the overall efficiency of the wastewater treatment process, the GNLW224 centrifuges are paired with GN Separation’s polymer dosing units. These units are engineered to accurately introduce flocculating agents into the wastewater stream. The addition of these agents through chemical conditioning encourages the aggregation of particles, which significantly improves the effectiveness of separating suspended solids during centrifugation. The synchronized operation of the centrifuges and dosing systems enables end-users to achieve higher solid-liquid separation rates and produce cleaner effluent. This not only lightens the load for downstream processing but also reduces the environmental footprint.

Compact Yet Sturdy Design

The GNLW224 is designed with a compact footprint, making it easy to integrate into existing plant layouts without the need for extensive and costly modifications. This is a major advantage for facilities that are looking to upgrade their outdated equipment or expand their capacity within limited space. Additionally, its robust construction, which incorporates corrosion-resistant materials and wear-resistant components, ensures long-term durability. It can withstand harsh operational conditions, including high-temperature environments and those involving abrasive sludge, without compromising performance.

Details of the Upcoming Client Inspection

The upcoming client inspection will be a comprehensive process that covers various aspects of the assembled units. It will include verifying rotational speeds, checking water test flow rates, measuring vibration levels, and monitoring the rise in main bearing temperature, among other parameters. GN Separation’s technical team will collaborate closely with the client’s engineers throughout the inspection. They will showcase the system’s capabilities and address any specific concerns the client may have regarding the integration of the new equipment with their existing infrastructure.

Market Standing and Future Outlook

In recent years, there has been a consistent rise in demand for compact and energy-efficient wastewater treatment technologies. This trend is being fueled by stricter environmental regulations and the rapid industrialization of emerging markets. GN Separation’s GNLW224 decanter centrifuge is well-placed to capitalize on this market opportunity. It offers a cost-effective alternative to larger and more complex systems without sacrificing performance. With production lines now ramping up to meet the anticipated demand, GN Separation is strengthening its position as a formidable competitor in the global wastewater treatment equipment sector.

GN Separation has recently achieved a significant milestone by successfully completing the assembly and factory testing of four GNLW764 Big Bowl Decanter Centrifuges for a client in Peru. These high-capacity machines, meticulously designed to meet the rigorous demands of industrial applications, are set to play a pivotal role in enhancing tailings dewatering processes within the mining sector. This strategic move addresses critical challenges related to water conservation, environmental compliance, and operational efficiency, thereby contributing to a more sustainable mining industry.

Decanter Centrifuges: A Game-Changer in Mining Tailings Management

Mining operations generate substantial volumes of tailings—a slurry comprising water, fine particles, and residual minerals—that necessitate effective treatment prior to disposal or reuse. Traditional tailings management methods, such as ponds or dams, are increasingly facing scrutiny due to space limitations, environmental risks, and stringent regulatory requirements. In this context, decanter centrifuges have emerged as a revolutionary technology, offering swift and efficient separation of solids from liquids, thereby transforming the tailings management landscape.

GNLW764: Engineering Excellence for Large-Scale Applications

The GNLW764 Decanter Centrifuge, GN Separation’s flagship model and the largest in its product range to date, is engineered to withstand the rigorous demands of high-volume processing. Featuring a 30-inch (764 mm) bowl diameter and a robust design, this machine is ideally suited for applications such as mining tailings dewatering, tunnel boring machine (TBM) slurry separation, and other industrial processes requiring substantial throughput.

1. Tungsten Carbide Protection: Ensuring Durability in Harsh Environments

Mining environments are inherently abrasive, with tailings containing coarse particles that can rapidly erode equipment. To counter this, GN Separation has incorporated tungsten carbide coatings on critical components, including the screw conveyor (spiral) blades and solids discharge ports. Tungsten carbide, renowned for its exceptional hardness and resistance to wear and corrosion, significantly extends the service life of these parts, minimizing downtime and maintenance costs. This ensures consistent performance even in the most challenging conditions, providing mining operators with a reliable and long-lasting solution.

2. VFD Control Cabinet: Precision and Safety in Operation

The GNLW764 is equipped with a Variable Frequency Drive (VFD) control cabinet, enabling precise adjustment of rotational speed to optimize separation efficiency for varying feed materials. This flexibility allows operators to customize the centrifuge’s performance to specific process requirements, whether handling fine clay particles or coarser minerals. Moreover, the VFD system integrates real-time monitoring of temperature and vibration levels, ensuring safe and efficient operation.

Complementary Technology: GNSJY6000 Flocculation Dosing Unit for Enhanced Performance

To further elevate dewatering performance, GN Separation recommends pairing the GNLW764 with its GNSJY6000 Flocculation Dosing Unit. This system automates the injection of flocculants—chemicals that aggregate fine particles into larger, more manageable clumps—into the feed slurry. By optimizing flocculation, the combined solution achieves superior solids capture rates and higher water recovery, thereby enhancing overall dewatering efficiency.

Looking Forward: A Commitment to Sustainability and Innovation

As the global mining sector continues to prioritize sustainability and operational efficiency, GN Separation remains at the forefront of innovation. Our ongoing investments in research and development, coupled with a comprehensive global service network, ensure that clients receive not only cutting-edge equipment but also unwavering support throughout the equipment lifecycle.

With the GNLW764 Decanter Centrifuges now ready for dispatch to Peru, GN Separation is poised to solidify its position as a leading provider of professional industrial separation solutions. We are dedicated to delivering value to our clients and contributing to a more sustainable future for the mining industry, one innovation at a time.

This October, the global mining community will converge in Beijing for the highly anticipated 21st China Coal & Mining Expo (CCME 2025). As a premier event in the industry, CCME 2025 is dedicated to driving progress in coal and mineral extraction technologies.

Event Snapshot
Scheduled to take place from October 28 to 31, 2025, at the Capital International Convention and Exhibition Center in Shunyi, Beijing, CCME 2025 promises to be a vibrant hub of activity. The exhibition is set to attract a wide array of exhibitors, encompassing well – known domestic and international manufacturers, cutting – edge technology providers, and seasoned industry experts. Over the four – day span, the focus will be on sustainable mining practices, automation, and equipment innovation. Attendees will gain access to the most up – to – date and efficient coal mining solutions, making it an invaluable event for anyone involved in the sector.

GN Separation’s Presence
GN Separation is proud to be among the exhibitors and will be located at Booth A4601. The company is gearing up to present a series of advanced equipment designed to address critical challenges in coal preparation, tailings management, and underground mining operations.

1. Large Flip – Flow Vibrating Screen: A Game – Changer in Screening
At the heart of GN Separation’s exhibit lies the Large Flip – Flow Vibrating Screen, a revolutionary screening technology specifically engineered for fine – grained and sticky materials. Traditional vibrating screens often struggle when dealing with fine coal, wet ore, or clay – rich substances, frequently experiencing clogging and inefficient separation. GN’s flip – flow design, however, overcomes these obstacles. By combining a flexible polyurethane screen surface with a double – mass near – resonance working principle, it effectively prevents screen blinding and pegging. This ensures a consistent and reliable throughput. In the context of coal mining, this equipment is particularly valuable for pre – screening raw coal before the washing process. By doing so, it reduces the burden on subsequent operations, streamlining the overall coal preparation workflow.

2. Tailing Dewatering Decanter Centrifuge: An Eco – Friendly Solution for Tailings Disposal
Tailings disposal is one of the most pressing environmental issues in the mining industry. GN Separation’s Tailing Dewatering Decanter offers a sustainable and efficient solution. It works by reducing the water content in mine waste, separating solids from liquids to produce a dry, stackable cake. This not only minimizes the amount of land required for waste storage but also significantly lowers the risk of leachate, which can have detrimental effects on the environment. In coal preparation plants, the decanter centrifuge plays a crucial role in facilitating the recycling of process water, thereby reducing the consumption of freshwater. With a capacity of up to 100 cubic meters per hour, it is an ideal choice for mid – to – large – scale mining operations that are looking to improve waste management while complying with ESG (Environmental, Social, and Governance) standards.

3. Underground Coal Sump Slurry Separation System: Tackling Underground Mining Challenges
Underground mining environments pose a set of unique challenges, including limited space, water inflow, and the need for rapid and efficient slurry handling. GN Separation’s Underground Coal Sump Slurry Dewatering System is designed to meet these challenges head – on. It integrates a compact decanter centrifuge with a pre – screening module to effectively treat the muddy water generated during roadway tunneling, coal extraction, and dust suppression. The system begins by separating coarse solids using a screening cyclone combination unit. Subsequently, the slurry is transferred to a dewatering centrifuge for fine particle separation. This process eliminates the need for manual sump dredging, ensuring unobstructed mine drainage. Moreover, it supports safe, efficient, and eco – friendly mining operations. Typically designed in a modular fashion, the system is easy to transport, install, and relocate, enabling it to be used in a mobile capacity.

GN Separation: Pioneering a Sustainable Mining Future
With over a decade of experience in separation technologies, GN Separation has established itself as a trusted and reliable partner for mining companies around the world. Its participation in CCME 2025 is a testament to its unwavering commitment to innovation and customer – centric design. Visitors to Booth A4601 will have a unique opportunity to engage with technical experts, witness live demonstrations of the equipment in action, and explore customized solutions tailored to their specific operational needs. We extend a warm invitation to all attendees to visit GN at the expo and discover how our cutting – edge technologies can transform their mining operations.