Corrosion Protection

Optimal Protection for Demanding Environments

nsd tupH™ is our solution for corrosive environmental conditions. Used in a variety of our aluminum gearboxes, motors, and frequency converters in many different industries e.g. food, chemical, pharmaceutical, and marine.

Exceeding Protection Standards

Cleaning processes with highly effective washing additives are constantly being expanded and are making increasingly higher demands on hygienic design and corrosion resistance.

The standards for the food industry, chemical industry, and the pharmaceutical industry call for intensive, strict washing, and disinfection processes.

In order to prevent material destruction by cleaning agents and disinfectants, the design and coating of machines for these applications must be smooth and ensure the best possible cleanability in manual or automated cleaning cycles.

Geared motors and frequency converters with a smooth surface and the nsd tupH™ surface finish meet the requirements for wear resistance and cleanability.

NORD DRIVESYSTEMS has introduced new solutions (in terms of materials, treatment and processing) for the surfaces of motors, gears, and components while offering a protection package with exceptional resistance to cleaning agents typically used in food, chemical, and pharmaceutical industries.

Sealed Surface Conversion System

nsd tupH™ from NORD DRIVESYSTEMS is the perfect solution for high-performance applications and extreme conditions. It is an alternative to multi-layer painting and stainless steel in highly corrosive environments.

  • Complies with FDA Title 21 DCFR 175.300
  • Corrosion resistant - prevents contact corrosion
  • Smooth, easy to clean surfaces
  • Lighter than stainless steel units
  • Dissipates heat more effectively than stainless steel
  • Resistant to acids and alkalis (wide pH range)
  • No spreading of corrosion, even if damaged
  • No flaking or blistering
  • Free from chromates
  • Available on a variety of NORD products, including DuoDrive , NORDBLOC.1, CLINCHER, worm gear units, smooth body motors, as well as select NORDAC variable frequency drives

How It Works

While with conventional methods the paint is only applied superficially and possibly even covers porous areas, the nsd tupH™ process has a base layer that permanently penetrates the surface of the aluminum and ensures a strong foundation for the connection of the surface coating. This combination offers extreme durability and is a harder surface than an untreated aluminum alloy.

Modern gearboxes must be robust, compact, powerful, economical, and light. The advantage of aluminum is its low weight, because weight is a cost factor, especially when the gear itself is a load that must be moved as part of an automated positioning system. For this reason, aluminum alloy has become the preferred material for gearboxes in many areas.

NORD DRIVESYSTEMS improves many of the optimal properties that an aluminum alloy offers for NORD gear housings. The material also has a certain inherent corrosion resistance and does not need additional protection in all cases. At the very least, an aluminum case is a much better conductor of heat than one made of cast iron. The resulting low operating temperatures have a beneficial effect on the internal transmission components and allow a longer service life.


Integrated Gear Unit and Motor

  • Power range: 0.35–3.0 kW
  • Extremely high system efficiency
  • Compact, hygienic wash-down design
  • Maintenance reduction
  • System solution for simple commissioning and plug-and-play

IE5+ synchronous motors (TENV)

Efficient. Hygienic. Compact

  • Performance: 0.5 HP - 3 HP
  • Protection Class: IP69K
  • Efficiency class: IE5+
  • Optional nsd tupH™ and IP69K surface treatment
  • Worldwide approvals and acceptance
  • Compact, hygienic design
  • Constant torque and efficiency over a wide speed range

NORDAC ON/ON+ - SK 300P - Frequency Inverter

Strong focus, optimum function

  • Power range: 0.5 - 4 hp (0.37 - 3 kW)
  • Protection class: IP55, IP66
  • Wall or motor mounting
  • Multi-protocol Ethernet interface
  • Plug-and-play solution for fast commissioning

NORDAC BASE Variable Frequency Drive - SK 180E

Compact drive, most important drive functions

  • Power range: 0.33 – 3 HP (0.25 – 2.2 kW)
  • Protection class: IP55, IP66
  • Wall-mount or motor-mount

Krijn Verwijs

Corrosion-Resistant Gear Drives At Work For The Seafood Processing Industry

The processing of shellfish and crustaceans takes place at the Dutch family-owned company Krijn Verwijs B.V. in the immediate vicinity of the North Sea shore in a humid and salty atmosphere. This has long been a problem for the drives. The NORD surface treatment nsd tupH brought relief.

Ambit Projects

Versatile Drive Systems for the Food Industry

The English machine manufacturer Ambit Projects equips its plants for washing agricultural products with NORD drive systems. The surface treatment nsd tupH™ provides optimum protection for their housing against corrosion.


Reliable NORD Drive Turn Machines in the Box Malting Plant

A complex production process is required to develop different taste nuances. The machines run in continuous operation. To prevent breakdowns, MOPOS installs reliable NORD drives.

Octopi Brewery

NORD is on Tap

For Octopi Brewing (USA), NORD DRIVESYSTEMS supplied drives with special surface treatment compliant with the requirements by the jobbing brewery. With the nsd tupH™ surface treatment, these drives became particularly resistant against corrosion.

S4500 - nsd tupH™ Sealed Surface Conversion System

S4500 - nsd tupH™ Sealed Surface Conversion System
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Documentation Details

CS0020 - MOPOS - Turning Machines for Box Malting

CS0020 - MOPOS - Turning Machines for Box Malting
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Documentation Details

CS0024 - Octopi Brewing - Brewing

CS0024 - Octopi Brewing - Brewing
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Documentation Details

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