Tungsten carbide fusion coating technology

NETZSCH Pumps USA has introduced N.Durance tungsten carbide fusion coating technology to extend the service life and reliability of NEMO progressing cavity pumps in abrasive and corrosive applications. The surface treatment is engineered to outperform traditional hard chrome plating and thermal spray coatings by providing dense, low-porosity wear protection for pump rotors operating in harsh environments common to municipal and industrial wastewater systems.

The fusion coating process produces a homogeneous tungsten carbide layer with high hardness of approximately 1,300 Vickers, delivering strong resistance to abrasion, cavitation and corrosion while maintaining toughness and adhesion under thermal and mechanical stress. Multiple coating configurations are available to match moderate to extreme service conditions, helping reduce downtime, extend maintenance intervals and lower total cost of ownership.

Manufactured in-house in the U.S. and compliant with Build America Buy America requirements, N.Durance supports faster turnaround times and consistent quality while improving long-term pump performance in demanding wastewater applications.