Corrosion Protection

Optimal protection for demanding environments

nsd tupH™ is our solution for corrosive ambient conditions. Benefit from the variety of our aluminium gear units, motors and frequency inverters in many fields, e.g. food, chemical, pharmaceutical and marine industries.

Great demands

Cleaning procedures with highly effective wash down agents are constantly being extended and place higher and higher demands on hygienic design and corrosion resistance.

According to the standards for the food, chemical and pharmaceutical industry, intensive, strict wash down and disinfection processes are required.

To prevent cleaning and disinfection agents deteriorating the material, design and coating of machines for such applications have to be smooth and ensure optimum cleanability for manual or automated cleaning cycles.

Geared motors and frequency inverters with smooth surface and nsd tupH surface treatment meet the demands on wear resistance and cleanability.

NORD DRIVESYSTEMS introduced new solutions (regarding materials, treatment and machining) for the surfaces of motors, gear units, and components and offers an endurance kit providing an enormous degree of resistance against acids and alkalis typically used for cleaning in the 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 multiple coats of paint and stainless steel in highly corrosive environments.

  • Easy to clean surfaces
  • Resistant to acids and alkalis (wide pH range)
  • No spreading of corrosion, even after damage
  • No flaking
  • Corrosion-resistant - prevents contact corrosion
  • Free from chromates

This is how it works

While traditional methods use only a superficial coat of paint and may even cover porous areas, the nsd tupH process has a base coat that permanently penetrates the surface of the aluminium, providing a strong base for the surface coating to bond. This combination offers extreme resistance and results in a surface harder than that of an untreated aluminium alloy.

Modern gear units must be robust, compact, powerful, economical and lightweight. The advantage of aluminium is its low weight because weight is a cost factor, especially if the gear unit itself is a load that has to be moved as part of an automated positioning system. For this reason, aluminium alloy has become the preferred material for gear unit housings in many fields.

NORD DRIVESYSTEMS improves many of the optimum properties that an aluminium alloy offers for NORD gear unit housings. The material also has some inherent corrosion resistance and does not need to be additionally protected in all cases. At the very least, aluminium housings conduct heat more efficiently than cast iron. The resulting low operating temperatures have an advantageous effect on the internal gear unit construction and allow a longer service life.


Two become one.

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

IE5+ Synchronous Motors (TENV)

Efficient. Hygienic. Compact

  • Performance: 0.5 HP - 3 HP
  • Protection class: IP69K
  • Efficiency class: IE5+
  • Optionally available with nsd tupH and IP69K
  • Worldwide approvals and acceptance
  • Compact and hygienic design
  • Constant high efficiency over the entire adjustment range

SK 300P - NORDAC ON/ON+ - frequency inverter

Optimised by focus

  • Power range: 0.37 - 3 kW
  • Protection class: IP55, IP66
  • Wall or motor mounting
  • Ethernet communication for integration
  • Plug-and-Play solution for fast commissioning

NORDAC BASE - SK 180E - Frequency Inverter

Compact Drive, Most Important Drive Functions

  • Power range: 0.25 – 2.2 kW
  • Protection class: IP55, IP66
  • Wall or motor mounting

Krijn Verwijs

Corrosion-resistant drive systems work reliably in salty atmosphere

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.


Latest generation drives for turning 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.

CS0020 - MOPOS Case Study

CS0020 - MOPOS Case Study
  • Download English
Documentation Details

CS0024 - Octopi Brewing Case Study

CS0024 - Octopi Brewing Case Study
  • Download English
Documentation Details

ATEX & EAC Ex - ATEX Information Manual

ATEX & EAC Ex - ATEX Information Manual
  • Download English
Documentation Details

ATEX-Poster - Ex-Labelling for mechanical and electrical devices European

ATEX-Poster - Ex-Labelling for mechanical and electrical devices European
  • Download English
Documentation Details

Find further information here: