Netzsch Pumps USA, the complex fluid handling solutions provider, recently announced the launch of N. Durance tungsten carbide fusion coating technology, a surface treatment engineered to maximize the service life and reliability of NEMO progressing cavity pumps.
Developed through research and testing for abrasive and harsh applications, the N.Durance™ coating provides a long-term solution where uptime, durability, and cost efficiency are critical. Designed for highly abrasive and corrosive applications, N.Durance delivers a level of protection and performance far beyond traditional coating technologies such as hard chrome plating, HVOF, and plasma spray systems.
The N.Durance series, available in Advanced, Pro, and Ultimate versions, enhances rotor durability and extends both rotor and stator lifetimes by leveraging a dense, homogeneous fusion coating with very low porosity. The manufacturing process achieves hardness, toughness, ductility, and cavitation resistance, minimizing oxidation and decarburization of tungsten carbide particles while improving the cohesiveness of splat layers.
This results in better cracking resistance, consistent wear protection, and reliable operation under extreme conditions. With a hardness of about 1,300 Vickers — among the highest in the industry — N.Durance delivers protection against friction and wear from abrasive fluids and solids common in applications for PC Pumps.
N.Durance delivers wear resistance, impermeability to gas and liquids, and improved corrosion protection, and replaces environmentally harmful hard chrome plating manufacturing processes. Unlike chrome plating, which produces carcinogenic hexavalent chromium, N.Durance employs an environmentally friendly manufacturing method that avoids toxic chemicals and hazardous waste.
The technology is manufactured in-house at Netzsch’s Exton, Pennsylvania, facility, ensuring consistent quality, controlled processes, and short delivery times. As the only progressing cavity pump manufacturer in the U.S. capable of producing and coating rotors in-house, Netzsch can machine and N.Durance-coat rotors in as little as one to two days, even offering same-day shipment when needed. All components are fully compliant with Build America, Buy America (BABA) requirements.
Ideal for industries handling abrasive slurries, corrosive fluids, and erosive environments, N.Durance improves the long-term reliability and efficiency of Nemo® Progressing Cavity Pumps. In municipal wastewater plants, this translates to longer maintenance intervals, reduced downtime, and improved system predictability. When paired with Netzsch’s smart monitoring solutions, such as Norius™, operators can access real-time data on pump performance for predictive maintenance and proactive service planning.
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