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Cleaning | SanitationNew Plant Products

Cleaning/Sanitization

NORD DRIVESYSTEMS’ Corrosion Solution—Sealed Surface Conversion System

NORD DRIVESYSTEM's surface conversion system

Image courtesy of NORD DRIVESYSTEMS

August 4, 2023

NORD DRIVESYSTEMS developed nsd tupH—a sealed surface conversion system. Harsh conditions exist in many industries such as food and beverage, bakery, automotive parts washing, chemical water treatment, marine, car wash and pharmaceutical industries. Applications in these environments are often subjected to intensive cleaning, high-pressure washing and disinfection processes to meet highly regulated, hygienic standards. The company created nds tupH to ensure easy yet safe cleaning, surface durability and wear resistance.

The nsd tupH is a treatment that 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 applied on top of the base layer to form a smooth surface that is easy to clean and maintain. The sealant also protects against acids and alkalis and will not spread corrosion, even if damaged. Compared to traditional surface protection methods such as paint, nsd tupH will not blister, flake or chip and provides 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, compact size and ability to conduct heat effectively, 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 various NORD’s modular drive system options such as:

  • NORDBLOC.1 helical inline gear units
  • NORDBLOC.1 two-stage helical bevel gear units
  • UNICASE parallel shaft gear units
  • UNIVERSAL SI worm gear units
  • UNIVERSAL SMI worm gear units
  • DuoDrive integrated gear units
  • Smoother surface motors
  • NORDAC ON/ON+ variable frequency drives

NORD units that are treated with nsd tupH also include additional hygienic options such as stainless-steel shafts and hardware, special shaft sealing rings to prevent moisture from entering the gear unit, and IP69-rated protection. Additionally, nsd tupH conforms to FDA Title 21 CFR 176.300 and can be built with synthetic or mineral food-grade lubrication for applications with extreme temperatures or those in the food and beverage industry.

Moisture, acids, alkalis and salts are present in many applications in the food and beverage industry, making rapid drive deterioration a constant concern. Painted cast iron units in these environments often fall short of demands and have a high turnover rate. NORD’s nsd tupH drive systems, however, are engineered for robustness and even provide durability in the humid, salty atmospheres of the seafood industry where conventional cast iron units can begin to rust within several weeks and stainless-steel units require long cool-off periods before they can be hosed-down.

The company states nsd tupH is ideal for hygienic applications and industries such as wastewater treatment, where drive systems are exposed to fluctuating temperatures and harsh outdoor conditions. Treating these systems with nsd tupH prevents corrosion from wastewater, precipitation and chemical cleaning. The NORD corrosion solution ensures units have a long lifespan reportedly efficient operation and fewer system replacements.

With the nsd tupH sealed surface conversion system, NORD DRIVESYSTEMS offers a surface treatment solution for gearboxes, motors, variable frequency drives and components to withstand extreme system conditions.

KEYWORDS: cleaning equipment drive technology environmental performance

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