Harsh operating conditions are present in many industries where they are often subjected to intensive cleaning, high-pressure washing and disinfection processes to meet the highly regulated, hygienic standards. To prevent gear motors from material destruction due to the rigorous cleaning agents and disinfectants, NORD DRIVESYSTEMS (Waunakee, WI) developed nsd tupH – a sealed surface conversion system that ensures easy yet safe cleaning, ultimate surface durability and wear resistance.
The nsd tupH treatment uses a chromate-free chemical process that permanently alters the aluminum housing’s physical properties to create a surface that is up to 7 times harder than the original. A clear sealant is then applied on top of the base layer to form a smooth surface that is easy to clean and maintain. The sealant also provides additional protection against acids and alkalis and will not spread corrosion, even if damaged. When compared to traditional surface protection methods such as paint, nsd tupH will not blister, flake or chip and provides a more durable corrosion resistance.
Stainless steel units are often used in similar harsh environments but unlike nsd tupH units, are heavy, costly and dissipate heat poorly. The advantages of using aluminum products are the material’s inherent low weight, compactness and ability to effectively conduct heat, keeping operating temperatures low and prolonging the service life of the internal transmission components. Another advantage of nsd tupH compared to stainless steel is the product availability. Whereas stainless steel can only be used with a small range of products, nsd tupH is available with a wide variety of NORD’s modular drive system options.