GN Separation Moves to the New Factory, A Milestone after 15 Years

Recently, GN Separation officially began production at its new 120-acre factory in Yutian, Hebei Province. This milestone event signifies a new phase of development for GN Separation. Over the past 15 years, the parent company of GN Separation has been focused on the manufacturing of separation equipment, driven by innovation and customer demand, continuously expanding its business areas, and improving product quality and service levels.

GN Separation’s main business includes areas such as drilling solids control equipment, decanter centrifuge equipment, and mineral vibrating screens. The company is committed to providing customers with efficient and reliable separation equipment and solutions, helping customers optimize resource utilization and configuration. After 15 years of development, GN Separation has become one of the key players in the domestic separation equipment manufacturing industry.

The new factory is equipped with advanced production and processing equipment, including large laser cutting machines, robotic welding stations, CNC machining equipment, and paint and powder coating assembly lines. The introduction of this high-tech equipment will elevate GN Separation to new heights in terms of production efficiency, product quality, and manufacturing processes.

During the construction of the new factory, GN Separation paid attention to the comfort and functionality of office facilities and accommodation. The modern office space is equipped with state-of-the-art office equipment and network facilities, providing convenience for employees in their daily work. The dormitory area includes amenities such as air conditioning, hot water, meeting and relaxation areas, ensuring a comfortable living environment for the staff.

The commissioning of the new factory will increase GN Separation’s production capacity by more than double, further meeting customer demands for product quality and delivery times. GN Separation has earned widespread trust from its customers through its professional technical team, rigorous quality management, and precise delivery commitments. In the future, the new factory will leverage its scale advantages to continuously improve production efficiency and product quality, offering customers higher-quality services.

The inauguration of GN Separation’s Yutian factory marks a milestone in the company’s 15-year journey, signaling the beginning of a new chapter. Starting from this new point, GN Separation will continue to uphold its “customer-centered” philosophy, enhance technological innovation and quality management, actively expand domestic and international markets, and continuously enhance its brand influence and industry position.

We sincerely invite both new and existing customers to visit the factory and witness the strength and charm of GN Separation’s Yutian new factory. At the same time, we look forward to collaborating with friends from all walks of life to create a better future together.

Optimizing Slurry Supply: The Versatility and Efficiency of GN Screw Pumps for Centrifuges

The screw pump stands out as the optimal apparatus for supplying slurry to centrifuges due to its unique features in a waste fluid treatment system. It avoids shearing or mixing the slurry, maintaining a low internal flow rate along the shaft, and ensuring consistent capacity, and stable pressure without causing vortices or stirring. Its composition revolves around two distinctive geometric components: the screw shaft (rotor) and the screw sleeve (stator). These elements work in tandem, generating extrusion that guides the slurry along the shaft.

GN Solids Control is a leading screw pump supplier that our screw pumps boast enhanced durability and reliability compared to most Chinese-made counterparts Crafted with components from leading German brands and assembled in China. Through strategic agreements with NETZSCH, we can provide these pumps at a more cost-effective price than the official site.

Among the favored models is the GNG30B-075C, catering to the GNLW363D centrifuge, boasting a flow rate of 30.3/h, a 7.5kW motor, and DN100 inlet and outlet specifications.

When opting for a screw pump, selecting the right model is crucial for optimal performance. To tailor the choice to the specific physical and chemical characteristics of the media and operational requirements, we encourage users to submit pump operation data. Our team of professionals can then recommend a suitable selection, which is subject to customer confirmation.

The model selection process requires essential operational data:

Transport Medium: Name, corrosiveness, abrasiveness, viscosity, solid content, working temperature.

Operating Parameters: Flow rate or range, maximum pressure, continuous or intermittent operation.

Installation Environment: Horizontal or vertical orientation, fixed or mobile setup, special requirements for connecting pipelines, electrical systems, and explosion-proof protection.

As a progressing cavity pump, the screw pump consists of a helical rotor and stator. The rotor, featuring a large pitch, depth, and a specific cross-section, works in conjunction with a stator with a two or three-start thread, allowing continuous movement of the medium from the inlet to the outlet.

When in need of a centrifuge and feed pump, we recommend choosing the screw pump as your feeding pump. For further information, kindly reach out via email to

Comparation of GN Screw Press and Centrifuge in Dewatering.

In the field of solids control and waste management, particularly in industries like waste water treatment, the demand for effective dewatering solutions is crucial. Among the technologies that stand out in this domain are the GN Screw Press and the Decanter Centrifuge. Both play pivotal roles in separating liquids from solids, each employing distinct mechanisms tailored to different needs. Let’s delve into a comprehensive comparison of these two technologies to understand their strengths and applications.

GN’s Screw Press  stands as an effective dewatering solution crafted to clarify liquids across various industries. This innovative technology leverages screw extrusion, employing the robust squeezing force generated by the alteration of screw diameter and pitch, along with the minute gap between the floating ring and the fixed ring. 

A primary advantage of the GN Screw Press lies in its low energy consumption. Operating at a lower speed, typically around 2-5 RPM, it consumes less power compared to traditional centrifuges. This not only leads to cost savings but also positions it as a more environmentally friendly option. However, it’s important to note that its primary application is in water treatment projects, and its capacity is relatively less than a centrifuge of similar size.

GN Decanter Centrifuges , on the other hand, are longstanding and widely adopted technologies for dewatering applications. Operating on the principle of centrifugal force, the high-speed rotation of the drum or bowl effectively separates liquids and solids based on their densities.


Decanter Centrifuges are recognized for their rapid dewatering capabilities, ideal for applications where time is a critical factor. GN offers dewatering centrifuge models such as 224, 364, and 554, with a length-to-diameter (L/D) ratio of 1/4. In industries like oil drilling, where swift clarification of drilling fluids is essential, centrifuges excel in delivering rapid results with a L/D ratio of 1/3. Additionally, decanter centrifuges prove proficient in separating oil-based fluids.

However, the efficiency of centrifuges comes at a cost, both in terms of energy consumption and maintenance requirements. These machines typically have a higher energy consumption rate, requiring substantial motor power. Furthermore, the high-speed rotation can lead to increased wear and tear, necessitating higher maintenance for the bowl and conveyor components. And the recommended feed pump is GN screw pumps for low speed, and steady pressure supplying.

When deciding between the GN Screw Press and a Centrifuge, several factors should be considered. These include the nature of the material being processed (solids particles, density, etc.), the required level of dewatering, energy efficiency goals, and maintenance considerations.


It’s worth noting that if equipment needs to be placed outdoors, protective measures, such as sun and rain shields, are advisable for the Screw Press, whereas the Decanter Centrifuge can be exposed directly to the elements. For more details, please feel free to contact Sam via WhatsApp at +8618034263511.

6 Sets VFD Decanter Centrifuge for Mud Treatment Supplied to China

Decanter centrifuges are used in a wide variety of industries to separate solids from liquids. They are typically driven by variable frequency drives (VFDs), which allow for more precise control of the centrifuge’s speed. GN supplied 6 sets of GNLW453D-VFD decanter centrifuges this time to a Chinese client.

The ability to vary the speed of the centrifuge allows it to be used for a wider range of applications. For example, it can be used to process slurries with different solids contents or viscosities. Besides, By optimizing the speed of the centrifuge, the separation of solids and liquids can be improved. This can lead to higher quality products with less waste.

Here is the specification of this model:

How Does a Decanter Centrifuge VFD Work?

A decanter centrifuge VFD works by controlling the frequency of the electrical current that is supplied to the centrifuge motor. This changes the speed of the motor, which in turn changes the speed of the centrifuge. The speed of the centrifuge is typically controlled by a feedback loop that monitors the level of solids in the centrifuge.

The centrifuge can separate drilling mud in which the fluid phase was separated by shale shakers and mud cleaners, and it’s feed pumps are usually screw pumps. This equipment will make the fluid phase more clear and reused in the drilling fluids process.

If you are interested in our VFD decanter centrifuge and other solids control equipment, please contact me at

Hydraulic Centrifuge and Screw Pump: A Match Made for Wastewater Treatment.

Hydraulic centrifuges and screw pumps are two types of equipment that are often used together in industrial applications. The hydraulic centrifuge is used to separate solids from liquids, while the screw pump is used as the feeding pump for the centrifuge.

GN Solids Control is a leading manufacturer of decanters centrifuges. We have partnered with Viscotherm and ROTODIFF®, leading brands of centrifuge hydraulic driving systems from Switzerland, to develop the Full Hydraulic Drive (FHD) Centrifuge. This centrifuge meets the highest standards and is designed for international clients. The FHD Centrifuge uses a hydraulic bowl and scroll drive system that is powered by a hydraulic pump unit. This system drives both the hydraulic motor ROTODIFF and the bowl of the centrifuge. The two hydraulic oil circuits allow for independent, stepless, and large-range speed regulation for the bowl and conveying. The FHD Centrifuge has several advantages. It can be used in high-temperature ambients, is designed for heavy mud, and has a flexible bowl and differential speed. The compact one-skid design makes it easy to rig up.

A screw pump is a progressive cavity pump that uses a rotating rotor with a series of helical blades to move fluids. The blades create a series of chambers that trap the fluid and move it along the pump. The pump is gentle on the fluid, so it does not shear or agitate it. It can handle high-viscosity fluids and hard-suspended particles for a mud system, and a good feeding pump for centrifuges. It is easy to maintain, better pumping than a centrifugal pump, and the only worn parts are the rotor and stator.

The combination of the centrifuge and the screw pump could be mounted with a skid:

If you are interested in the skid and equipment, or you have a project in drilling mud treatment or waste fluid treatment, please feel free to contact me for more details.