Category: decanter centrifuge

5 sets of big bowl decanter centrifuges for overseas tailings slurry separation project

Recently the 5 sets of big bowl decanter centrifuges are shipped to overseas tailings slurry separation project.


The supply of 5 sets of big bowl decanter centrifuges for an overseas tailings slurry separation project is a systems level investment in water security, tailings risk mitigation, and operational continuity. The technical case rests on high G separation, wear engineered construction, and VFD driven flexibility; the strategic case rests on water recovery, dry stackable solids, and compliance with evolving global tailings standards. As mining jurisdictions worldwide move toward stricter tailings governance and more ambitious water stewardship targets, fleets of big bowl decanter centrifuges are poised to transition from alternative technology to standard practice in responsible tailings management. The 5 units deployment described here exemplifies that transition — not merely a shipment of equipment, but the installation of a dewatering backbone for a project that cannot afford to treat tailings as an afterthought.
Why should we use the big bowl decanter centrifuges?


Decanter centrifuges separate solids from liquids by feeding slurry into a rapidly rotating horizontal bowl, generating centrifugal forces that can reach up to 3,500 G. Denser solids migrate to the bowl wall, where an internal scroll conveyor continuously transports them to a discharge outlet, while clarified liquid exits from the opposite end. The result is a dry, stackable cake suitable for dry stacking or co-disposal, alongside clean process water that can be returned immediately to the plant.


GNLW764-VFD series big bowl decanter centrifuge is a 30m inch bowl centrifuge, which offers a bowl length to diameter ratio of 4.38 and a capacity of 60 ~ 120 m³/h for coal mine tailings, depending on feed solids content. Variable frequency drive (VFD) control systems that allow independent adjustment of bowl speed and differential speed.
For more information of big bowl decanter centrifuge, pls check with GN solids control.

10 Sets Big Bowl Mud Centrifuge and 5 Vertical Cuttings Dryer for Africa Project

Recently, GN Solids Control completed a large order and is preparing it for shipment to an African client. The shipment includes 10 sets of GNLW453D-VFD big bowl mud decanter centrifuges and telescopic skid, 5 sets of GNCD930G vertical cuttings dryer systems, 10 sets of feeding pumps, 10 sets of screw conveyors, and other equipments. All of these units have been tested, inspected, and packed, ready for delivery.

The GNLW453D-VFD is a high capacity decanter centrifuge designed for drilling mud and waste management. Its big bowl design improves separation efficiency and processing capacity, while the VFD control system allows operators to adjust bowl speed and differential speed according to actual mud conditions. This helps recover more valuable drilling fluid, reduce waste volume, and improve overall solids control performance. The matching skid ensured stable operation and convenient installation on site.

The GNCD930G vertical cuttings dryer is widely used for treating oil based and synthetic based drilling cuttings. It recovers valuable drilling fluid from cuttings and reduces the oil content in discharged solids, helping clients meet environmental requirements and lower disposal costs. The 5 vertical cuttings dryer systems will work together with the decanter centrifuges to form an efficient drilling waste management process.

In addition, the 10ea feeding pumps and 10ea screw conveyors are included to ensure smooth material transfer throughout the system. The pumps feed drilling mud to the centrifuges, while the screw conveyors transport solids between different processing units. This complete package provides a reliable and integrated solution for drilling waste treatment.

Before shipment, each unit was carefully inspected and tested to ensure quality and performance. The equipment is now being prepared for long-distance transportation to Africa. Once installed, the system will help the client improve drilling fluid recovery, reduce waste, and enhance operational efficiency.

We look forward to supporting the successful operation of this project in Africa.

GN Solids Vauum Pump and Decanter Centrifuge for Middle East Client

The Middle East and North Africa (MENA) region presents some of the most demanding operating conditions for oil and gas drilling operations anywhere in the world.
GN Solids Control, a global manufacturer of solids control and drilling waste management equipments, has been serving the Middle East market for many years. With a deep understanding of regional challenges and a proven track record of successful deliveries, GN provides integrated solutions that combine advanced solids vacuum pumps and decanter centrifuges to help clients achieve operational excellence.

GN Solids Vacuum Pump:

For Middle Eastern projects, the GN Solids Vacuum Pump is deployed to extract oily sludge from pits and separators. The pneumatic design is intrinsically safe, preventing ignition risks in explosive environments while ensuring compliance with international safety standards. This makes it particularly valuable for:

  • Pit cleaning and sludge removal: Efficiently transferring accumulated sludge from drilling waste pits
  • Waste mud transfer: Moving high solids content drilling waste across site
  • Tank bottom cleaning: Removing residual sludge from storage tanks and separators
  • Hazardous waste recovery: Safe handling of materials in Zone 1 hazardous areas

GN Decanter Centrifuge:
GN manufactures decanter centrifuges with bowl diameters ranging from 9 inches (220 mm) to 30 inches (760 mm), accommodating a wide spectrum of processing requirements. Key features include:

The use of Decanter Centrifuges in Drilling Operations:

Fine Solids Removal: After primary separation equipment such as shale shakers, desanders, and desilters remove larger cuttings, the decanter centrifuge tackles the fine and ultra-fine solids that remain suspended in the drilling fluid.

Barite Recovery: Barite is an expensive weighting agent used to increase mud density. The decanter centrifuge can recover barite from drilling fluids, significantly reducing operating costs. By separating high gravity solids from low-gravity solids, the centrifuge enables operators to reuse valuable weighting materials.

Waste Volume Reduction: By removing solids from drilling fluids, the decanter centrifuge reduces the volume of waste requiring disposal.

GN Hydraulic Drive Centrifuge Unit for Diamond Core Drilling In Australia

Recently one set of Hydraulic Drive Centrifuge Unit for Diamond Core Drilling are ready for delivery to Australia.


Diamond core drilling is the preferred method for mineral exploration in Australia, where vast and remote mineral deposits require precise geological sampling. In this process, a diamond impregnated drill bit cuts a cylindrical core of rock, and drilling fluid or “mud” is pumped down to lubricate and cool the bit, remove rock cuttings, stabilize the borehole wall, and prevent contamination of the core sample.
The logistical challenges are compounded by the remote nature of many Australian exploration sites. Limited access to electrical infrastructure, the need for helicopter transportability, and harsh operating conditions demand equipment that is robust, self-sufficient, and easily deployable.
One complete set of hydraulic drive decanter centrifuge unit including decanter centrifuge (high G force separation removes fine solids from drilling fluids), hydraulic drive system, diesel engine(Provides robust, autonomous power generation), mud tank, feeRecently one set of Hydraulic Drive Centrifuge Unit for Diamond Core Drilling are ready for delivery to Australia.


Diamond core drilling is the preferred method for mineral exploration in Australia, where vast and remote mineral deposits require precise geological sampling. In this process, a diamond impregnated drill bit cuts a cylindrical core of rock, and drilling fluid or “mud” is pumped down to lubricate and cool the bit, remove rock cuttings, stabilize the borehole wall, and prevent contamination of the core sample.
The logistical challenges are compounded by the remote nature of many Australian exploration sites. Limited access to electrical infrastructure, the need for helicopter transportability, and harsh operating conditions demand equipment that is robust, self-sufficient, and easily deployable.
One complete set of hydraulic drive decanter centrifuge unit including decanter centrifuge (high G force separation removes fine solids from drilling fluids), hydraulic drive system, diesel engine(Provides robust, autonomous power generation), mud tank, feeding pump, mixing pump, mixing hopper.
Features of GN hydraulic drive centrifuge system:
1. Environmental friendly
2. Reduce drilling cost, reduce wear on drill bits and mud pump
3. Safety
4. High Efficiency
At the heart of the GN hydraulic centrifuge system is the GNLW223D-FHD full hydraulic decanter centrifuge, featuring a compact 220mm (9-inch) bowl diameter. Despite its small footprint, the unit delivers powerful solid-liquid separation, removing fine solids down to 2~5 microns at 3,800 RPM, generating Max 2492 G force for optimal drilling fluid purification. The processing capacity maximum 130 litres per minute, with a tank volume of 2.03 cubic metres ensuring continuous and efficient solids removal.
Engineered with a skid-mounted, modular design, the entire system weighs approximately 2,500 kg and meets stringent weight and size requirements for helicopter transport, enabling rapid mobilization to challenging terrains.
If you need a solids removal unit, pls contact with GN solids control.

Hydraulic Drive Mud Centrifuge and Cuttings Dryer for Asia Client

One unit of hydraulic drive mud centrifuge and vertical cuttings dryer are ready for shipment to Asia client.
Fully Hydraulic Decanter Centrifuge (GNLW363D-FHD)


GNLW363D-FHD centrifuge is fully hydraulic drive. The bowl speed and conveyor speed is adjustable within the permitted range. It can achieve independent, stepless and large range speed regulation for the bowl and conveying. The bowl speed and conveyor speed during working is showing on the screen.
GNLW363D-FHD centrifuge is mainly composed of rotating assembly, hydraulic drive system and inlet and outlet interface device
Unlike conventional electric driven VFD decanter centrifuge, this fully hydraulic drive decanter centrifuge features a cutting edge hydraulic drive system. The system drives both the conveyor and bowl from a hydraulic pump unit through two independent hydraulic oil circuits, enabling precise, independent, and infinitely variable adjustment of bowl speed and scroll differential speed—even during operation
Vertical Cuttings Dryer (GNCD930G)


GNCD930G vertical cuttings dryer, it is a core piece of equipment for drilling waste management. Primarily designed to treat drill cuttings discharged from shale shakers when drilling with oil based or synthetic based mud, the cuttings dryer utilizes high speed centrifugal force to effectively remove residual liquid from cuttings. The GNCD930G is engineered to achieve an Oil on Cuttings (OOC) level as low as 3%–5%, meeting stringent environmental standards while allowing valuable oil-based mud to be reclaimed and returned to the drilling system
This significant shipment to an Asian oilfield service company underscores GN Solids Control’s commitment to providing high-quality, reliable equipment for offshore drilling operations worldwide.
s a leading manufacturer with API certification, GN Solids Control continues to support the global oil and gas industry’s efforts toward more environmentally responsible operations by delivering advanced, high-performance solutions. For more information about GN Solids Control and its full range of solids control and drilling waste management equipments, visit www.gnsolidscontrol.com.