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Published: 14 November 2025
This week, GN Separation successfully completed the assembly of four GNLW224 decanter centrifuges, along with their matching polymer dosing units, at its manufacturing plant. These pieces of equipment are slated to undergo a final inspection and acceptance test conducted by an overseas client next week.

Product Overview
The GNLW224 is the smallest-capacity model in GN Separation's lineup of decanter centrifuges specifically tailored for wastewater treatment applications. It is ingeniously engineered to deliver dependable performance even in compact spaces. Operating at a maximum rotational speed of 5,000 RPM, this centrifuge can efficiently separate solid and liquid phases from a wide range of industrial and municipal wastewater streams.
Each centrifuge comes equipped with a 3-variable-frequency drive (VFD) control cabinet. This advanced feature empowers operators to fine-tune crucial parameters, such as bowl speed, differential speed, and feed pump flow rate. By doing so, they can optimize processing conditions according to the unique characteristics of the materials being treated and specific operational needs.

Integrated Polymer Dosing Units for Enhanced Efficiency
To further boost overall treatment efficiency, the centrifuges are paired with GN Separation's polymer dosing units. These units are designed to precisely introduce flocculating agents into the wastewater stream. The addition of these agents through chemical conditioning promotes particle aggregation, which in turn makes the separation of suspended solids during centrifugation more effective. The synchronized operation of the centrifuges and dosing systems enables end-users to achieve higher solid-liquid separation rates and produce clearer effluent. This not only reduces the workload for downstream processing but also minimizes the environmental impact.
Compact Design and Robust Construction
The GNLW224 boasts a compact footprint, allowing it to be seamlessly integrated into existing plant layouts without the need for extensive modifications. This is a significant advantage for facilities looking to upgrade outdated equipment or expand their capacity within limited space. Moreover, its robust construction, featuring corrosion-resistant materials and wear-resistant components, ensures long-lasting durability. It can withstand demanding operational conditions, such as high-temperature environments or those involving abrasive sludge.
Upcoming Client Inspection Details
The upcoming client inspection will involve a comprehensive testing process for the assembled units. This includes verifying rotational speeds, water test flow rates, vibration levels, and the rise in main bearing temperature, among other parameters. GN Separation's technical team will work closely with the client's engineers during the inspection. They will demonstrate 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 Position and Future Prospects
In recent years, there has been a steady increase in demand for compact and energy-efficient wastewater treatment technologies. This trend is driven by stricter environmental regulations and growing industrialization in emerging markets. GN Separation's decanter centrifuge is well-positioned to take advantage of this market opportunity. It offers a cost-effective alternative to larger, more complex systems without sacrificing performance. With production lines now gearing up to meet the expected demand, GN Separation is solidifying its position as a competitive player in the global wastewater treatment equipment sector.