Blue Flower

GN Separation has successfully commissioned and put into operation a heavy-duty decanter centrifuge with a 30-inch (760 mm) bowl diameter for a mining slurry concentration project in China. Deployed for continuous, automated solid-liquid separation, the advanced separation equipment effectively boosts customer’s slurry concentration efficiency, cuts logistics and transportation expenditures, and maximizes the recovery of valuable mineral resources.
The 30-inch decanter centrifuge deployed for this project stands as one of the largest-capacity models in GN Separation’s product lineup. Engineered for high-volume industrial scenarios, the equipment integrates superior processing throughput and outstanding separation precision, making it perfectly suited for rigorous solid-liquid separation workflows in mining, mineral processing, tailings treatment and other heavy-duty industrial applications.
Adopting high-speed rotary bowl design, the centrifuge generates powerful centrifugal force to accelerate the rapid sedimentation and stratification of fine mineral particles. The precise speed differential between the rotating bowl and screw conveyor enables continuous, automatic conveying of concentrated solid materials to the discharge outlet, while clarified liquid is discharged from the opposite end. This fully automated, 24/7 continuous operation drastically minimizes manual intervention and ensures stable, consistent long-term running performance.
Tailored to address the high abrasiveness of mining slurry, the centrifuge adopts premium wear-resistant structural materials for enhanced durability. Its duplex stainless steel bowl delivers exceptional mechanical robustness and superior corrosion resistance to adapt to harsh mining operating conditions. The screw flights are fitted with replaceable tungsten carbide tiles, which greatly extend equipment service life when handling highly abrasive mineral particles. Key wear-prone areas are additionally structurally reinforced, lowering routine maintenance frequency and ensuring reliable long-term operational stability.
Energy efficiency and operational flexibility are core design highlights of the equipment. Equipped with a state-of-the-art variable frequency drive (VFD) control system, the centrifuge allows on-site operators to flexibly adjust bowl rotation speed, differential speed and torque parameters in response to real-time fluctuations in slurry properties. This intelligent adjustable control optimizes overall separation performance, while effectively reducing energy consumption and long-term operational costs.
Compared with traditional gravity thickening equipment widely used in the mining industry, GN’s decanter centrifuge boasts comprehensive competitive advantages, including a compact footprint, ultra-fast processing speed, full automation and stable separation results. The high-concentration underflow produced by the equipment simplifies downstream processing procedures, reduces material handling and transportation costs, and realizes more efficient extraction and utilization of valuable minerals from raw slurry.
As a professional and reliable manufacturer of industrial separation equipment, GN Separation offers a complete range of decanter centrifuges with bowl diameters spanning from 9 inches to 30 inches, covering full-scenario application needs from laboratory testing to large-scale heavy-duty industrial production. Its high-performance separation systems have been widely applied across global industries including mining, oil and gas, wastewater treatment, chemical processing, food production and environmental protection.
The successful commissioning and stable operation of this domestic mining slurry concentration project further validates GN Separation’s strong capability in delivering customized, high-reliability separation solutions for complex and demanding industrial scenarios. Driven by sustained R&D investment, advanced manufacturing capabilities and stringent quality control systems, GN Separation remains committed to developing high-efficiency, cost-effective separation equipment, helping global clients enhance production efficiency, cut operational costs and achieve sustainable resource recycling and utilization.

Improving Mining Slurry Management with GN Large Bowl Decanter Centrifuge Technology

Mining operations generate large volumes of slurry during mineral processing, tailings management, and water recovery processes. Efficient solid-liquid separation plays an important role in improving process efficiency, recovering valuable water resources, and supporting more sustainable mining practices.

For a domestic mining slurry concentration application, GN Separation supplied a GN 30-inch bowl diameter decanter centrifuge, designed to provide continuous separation performance for large-scale slurry treatment requirements.

Read more: GN 30-Inch Bowl Diameter Decanter Centrifuge for Domestic Mining Slurry Concentration Application

Efficient Solid-Liquid Separation Solution for Challenging Oil Sludge Applications

Tank bottom sludge management has always been a major challenge for oil storage terminals and refineries. Due to long-term storage, crude oil tanks gradually accumulate a complex mixture of heavy hydrocarbons, water, sand, corrosion products, and fine solids at the bottom of the tank. This sludge is difficult to handle, requires significant manpower, and often creates high disposal costs.

To address these challenges, GN Separation supplied a GNLW554-VFD Large Bowl Decanter Centrifuge for an oil sludge treatment project in Africa, providing an efficient solution for continuous solid-liquid separation and sludge volume reduction.

Read more: GNLW554-VFD Decanter Centrifuge for Tank Bottom Sludge Treatment in Africa
GN 22-Inch Decanter Centrifuge Deployed for African Tank Bottom Oily Sludge Remediation
GN Separation has fully completed the manufacturing and factory acceptance testing of the GNLW554-VFD decanter centrifuge, which is slated for delivery to an African oil and gas client. Tailored for tank bottom oily sludge treatment, this advanced separation equipment will enable the customer to recover usable crude oil, cut waste discharge volume and enhance overall environmental compliance for on-site operations.
20260710 Oily sludge separation centrifuge

High-Performance Oily Sludge Separation Solution

The GNLW554-VFD is a core model of GN Separation’s 22-inch decanter centrifuge series, engineered for uninterrupted industrial solid-liquid separation. It delivers consistent, high-efficiency performance for rigorous processing scenarios, including oily sludge remediation, refinery waste treatment, drilling waste management and industrial wastewater purification.
Equipped with a variable frequency drive (VFD) system, the centrifuge features flexible and adjustable operational parameters. On-site operators can precisely regulate the bowl rotating speed and differential speed based on real-time feed sludge conditions, ensuring optimal separation results and stable long-term operation for diverse and complex sludge materials.

Optimized Working Principle for Tank Bottom Sludge Treatment

In standard tank bottom oily sludge treatment workflows, the decanter centrifuge is deployed as a core processing unit after sludge pre-treatment procedures such as dilution, heating and chemical conditioning. When pre-treated sludge enters the high-speed rotating bowl, powerful centrifugal force rapidly separates solid sediments from liquid phases.
The built-in screw conveyor continuously conveys separated solid impurities to the discharge outlet, while the purified liquid is discharged independently for subsequent oil recycling and further refinement. Adopting a fully continuous operating mode, the equipment maintains stable separation efficiency even when handling high-viscosity, complex oily sludge with fluctuating properties.

Core Advantages of Decanter Centrifuge Sludge Treatment Technology

Decanter centrifuge separation technology stands out in oily sludge remediation for its dual benefits of resource recovery and waste reduction. It effectively separates crude oil from solid sediments and water phases, maximizing the recovery of reusable oil resources. Meanwhile, it drastically reduces the volume of hazardous oily sludge, lowering subsequent transportation and harmless disposal costs, and minimizing the environmental footprint of oilfield waste.
Thanks to these prominent strengths, GN decanter centrifuges have become essential core equipment for modern oily sludge treatment systems, widely adopted by global oil producers and professional environmental service providers.

Customized Full-Set Sludge Treatment Solutions by GN Separation

Leveraging decades of professional experience in solid-liquid separation technology, GN Separation provides one-stop, turnkey solutions for oily sludge treatment. The complete system covers pre-treatment modules, chemical dosing units, two-phase decanter centrifuges, three-phase separation centrifuges, material transfer pumps and integrated modular processing systems.
Our professional engineering team can design and configure customized process schemes according to clients’ specific sludge properties, on-site working conditions and project treatment targets, ensuring tailored and efficient waste remediation solutions.
20260710 VFD control cabinet

Market Expansion in Africa & Global Service Commitment

The upcoming shipment of the GNLW554-VFD decanter centrifuge marks another milestone in GN Separation’s layout of the African market. It further validates the company’s reliable equipment quality and professional service capabilities in the global oil and gas industry.
Moving forward, GN Separation will continue to iterate and upgrade high-efficiency, high-reliability separation technologies and equipment. We remain committed to helping global clients optimize operational efficiency, maximize resource utilization, and meet increasingly stringent international environmental protection standards.

Hebei, China – July 1, 2026 – GN Smart Control Technology Co., Ltd. (official website: https://www.gnsmartcontrol.com) has officially launched its full-spectrum product portfolio, encompassing explosion-proof electric control cabinets, standard industrial control cabinets, and fully integrated intelligent control system solutions. The company delivers custom-engineered automation control products that meet international certification standards, serving global clients across the oil & gas, mining, tunnel engineering, wastewater treatment, infrastructure construction and other key industrial sectors.

2026.07.01 GN Smart Control Office

Built upon the robust industrial foundation of GN Separation, the company inherits decades of rich on-site project experience in solid-liquid separation machinery. Its core technical team has long provided dedicated support for GN Separation’s projects deployed in more than 70 countries and regions worldwide, with specialized expertise in the R&D, manufacturing and delivery of electric control systems, industrial automation platforms, and complete intelligent slurry pump control units. All control products are designed for full seamless compatibility with GN Separation equipment, enabling the company to deliver integrated turnkey industrial solutions to end users across the globe.

2026.07.01 Ex Electrical Control

The company’s offerings are structured into three core product categories: the explosion-proof electric control series, general-purpose industrial control cabinets, and integrated intelligent control systems. The explosion-proof cabinet line holds a complete set of authoritative global explosion-proof certifications including CNEX, ATEX and IECEx, covering explosion-proof PLC control cabinets, frequency conversion cabinets, soft starter boxes, explosion-proof junction boxes and more. These products fully satisfy the strictest safety requirements for flammable and explosive working conditions such as oil & gas drilling, underground mining and petrochemical operations. For general industrial scenarios, the standardized PLC control cabinets, motor starter cabinets and power distribution boxes ensure the stable automated operation of wastewater treatment facilities and tunnel construction machinery.

2026.07.01 Industrial Electrical Control

Beyond individual cabinet units, GN Smart Control also provides turnkey intelligent packaged systems, including PLC automation systems, SCADA remote monitoring platforms, centralized power distribution units and integrated motor control systems, to realize full-process digital monitoring of production lines.

Supported by the group’s 80,000-square-meter modern intelligent manufacturing park, the company implements rigorous full-process quality inspection protocols and maintains highly flexible, fast-delivery capabilities. Its global service network is fully interconnected with GN Separation’s worldwide layout, with self-operated subsidiaries equipped with local warehouses and after-sales teams established in the United States, Australia and the UAE in the Middle East, alongside authorized service partners in more than 10 countries and regions. This structure ensures that overseas customers can access timely localized technical support as well as on-site equipment installation and commissioning services.

What sets GN Smart Control apart from ordinary electrical control manufacturers is its one-stop customized service capability. Its engineering team develops tailor-made control solutions based on each client’s specific project parameters, covering the entire value chain from conceptual design, production and manufacturing to on-site commissioning and long-term after-sales maintenance. By integrating the two major business segments of separation equipment manufacturing and intelligent control R&D, the company fills a long-standing market gap for dedicated supporting control systems for global industrial solid-liquid separation production lines.

2026.07.01 Smart Control Solutions

A senior executive at GN Smart Control commented: “The original intention of establishing GN Smart Control was to complete the supporting industrial chain for GN Separation. We deeply integrate mature separation equipment technology, safety-compliant electrical control products and intelligent remote monitoring systems, to help global customers improve equipment operation safety, reduce energy consumption and enhance overall project operational efficiency. Looking ahead, we will continue to upgrade our explosion-proof and intelligent control product lines, to deliver more reliable and cost-effective automation solutions for diverse industrial separation working conditions.”

Moving forward, GN Smart Control will increase R&D investment in digitalized and cloud-connected control systems, to further achieve full compatibility between its control products and GN’s full range of equipment, including vibrating screens, decanter centrifuges and sludge treatment systems. The company will also continue to expand its global business footprint to serve more industrial customers worldwide.

Efficient Water Recycling Solution for Domestic Food Processing Plants

In modern food processing plants, especially potato chip and pre-cut potato slice production lines, large volumes of flushing water are generated during washing and cutting processes. This wastewater typically contains a significant amount of free starch, fine fibers, and suspended solids.

Instead of discharging this valuable stream as waste, a decanter centrifuge can be used to efficiently recover starch and enable water recycling, significantly reducing operating cost and environmental load.

Read more: Potato Slices Flushing Water Starch Separation by Decanter Centrifuge