As hydrovac excavation continues to expand across global markets, efficient slurry management has become a critical operational requirement. Hydrovac trucks generate large volumes of water-soil mixtures that must be processed, dewatered, and disposed of in a cost-effective and environmentally compliant manner. To help contractors reduce disposal costs, recover reusable water, and minimize downtime, GN Solids Control has delivered its GNLW454GT Mud Dewatering Centrifuge, designed specifically for hydrovac slurry treatment applications.

The GNLW454GT is a high-capacity, 18-inch bowl decanter centrifuge, engineered to handle fine solids separation while maintaining continuous and stable operation. Hydrovac waste typically consists of fine clay, silt, sand, and suspended solids with varying densities. These characteristics require a centrifuge with strong torque output, precise control of differential speed, and high G-force to achieve effective liquid-solids separation. The 454GT meets these challenges through its enhanced torque gearbox, wear-resistant bowl design, and optimized scroll geometry.

One of the major advantages of using the GNLW454GT in hydrovac slurry treatment is its ability to significantly reduce the volume of liquid waste, producing a drier solids discharge. The dryer the solids, the lower the disposal cost—and for many hydrovac contractors, disposal fees represent the largest operating expense. With the GN centrifuge, customers have reported substantial reductions in the number of truckloads sent to disposal sites, improving both operational efficiency and profitability.
In addition to solids reduction, the centrifuge produces clearer effluent water, which can be reused on site for hydrovac operations or discharged according to local environmental regulations. This not only minimizes fresh water consumption but also supports more sustainable jobsite practices.

The GNLW454GT is built with robust, industry-proven materials, including tungsten carbide wear protection on the scroll, tiles along the bowl inner surface, and an abrasion-resistant feeding system. All components are designed to withstand the highly erosive nature of hydrovac slurry, ensuring long service life and reduced maintenance frequency. The machine is available with either VFD control or fixed-speed operation, with the VFD package allowing operators to adjust bowl speed, differential speed, and feed rate in real time to achieve optimal performance under changing conditions.

For mobile jobsite requirements, GN also provides skid-mounted or containerized system options, integrating pumps, polymer dosing units, and control panels into a compact processing unit. This allows the GNLW454GT centrifuge to be deployed at transfer stations, hydrovac dumping facilities, recycling centers, or directly at project sites.

With decades of experience in solids control and separation technology, GN Solids Control continues to support customers in the hydrovac, tunneling, construction, mining, and drilling sectors worldwide. The successful deployment of the GNLW454GT Mud Dewatering Centrifuge demonstrates GN’s commitment to offering reliable, efficient, and field-proven solutions for demanding slurry management applications.