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Kategori: Energy, oil & gas

Perfect cleaning for the
wind turbine industry

Maintenance and cleaning

Optimising resources ensures
uniform quality

ZF Wind Power gets higher quality cleaning with less manual handling

ZF Wind Power puts wind turbines in motion. ZF Wind Power supplies gearboxes for the world’s leading wind turbine producers. But when the gears of the gearbox are not completely clean, it becomes a problem for the subsequent processes. Together, ZF Wind Power and DST-CHEMICALS have refined DST-PINK GEL as an efficient detergent for wind turbine gearboxes. But why the colour pink?

DST-CHEMICALS and ZF Wind Power developed, tested and optimised the DST-PINK GEL product in collaboration in 2018. Jens Lorentzen, Technical Process Specialist, and Pernille Simonsen, Chemical Engineer, describe the challenges, development efforts and collaboration involved the solution – and the result.

Jean-Pierre Huyberechts (ZF Wind Power): “ZF is dedicated to standardising ALL of our fluids – to a uniform high level of quality. This will allow us to guarantee the same and the best results to our customers, every time. Whether the gearbox is produced in the US, China, India or Belgium. That’s why DST-CHEMICALS is a key partner.”


ZF Wind Power had daily problems with poor wash quality and results after using a different detergent. The gearboxes were not absolutely clean. Moreover, the subsequent manual cleaning took an unnecessarily long time. ZF Wind Power and DST-CHEMICALS have worked together as partners for many years and have developed several products which is why ZF Wind Power contacted DST-CHEMICALS in Denmark: would DST-CHEMICALS be able to help develop and optimise DST-PINK GEL?

DST-PINK GEL is a manual detergent sprayed on the part to be cleaned. Afterwards it is rinsed out. The parts still pink are the nooks and crannies to be finished with manual cleaning, Jens Lorentzen says. When ZF Wind Power produces gearboxes, lots of parts have to be spotless before proceeding in the processing.


ZF Wind Power had very specific requirements for the abilities and appearance of the detergent. Pernille Simonsen has developed and optimised DST-PINK GEL together with ZF Wind Power.

Through a wide range of testing in both Lommel (Belgium) and Kolding (DST HQ, Denmark), we found an optimum solution. Adding the colour pink to the detergent makes it easier for the staff to see which areas require cleaning and where cleaning is insufficient. At the same time, the product also had to be ready for use and to be able to be applied and removed quickly. Studying the product’s composition, we have managed to find a good solution.

DST-PINK GEL has been developed and tested in various processes and then applied – at first in Lommel, Belgium and now globally at ZF Wind Power.


DST-PINK GEL is applied using a hand sprayer, and after 10-15 min., one man can easily remove DST-PINK GEL and apply a water based corrosion inhibitor (DST-PAS/1).

Rather than using three hours to process one gearbox – and take up space – ZF Wind Power is now able to handle six gearboxes at a time. Just one man – without using any solvents.


  • Total cleaning and degreasing of metal parts on wind turbine gearboxes
  • Preparation for additional processing – lacquer or paint
  • Water based solution – no solvents used
  • Saves resources – both manpower and time
  • Standardising fluids – and quality – globally

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Safe cleaning of decks and wires on offshore installations

Offshore cleaning

All risks avoided

Safe cleaning of decks and wires on offshore installations

DST-OFFSHORE CLEANER has been developed in close collaboration with at large offshore customer, who was after a cleaner which could help create a much safer working environment. Simultaneously, the product had to be water-based and highly effective for cleaning the offshore installations in the North Sea.

It was a final demand that the product had to be less hazardous in order to secure the working environment for the operators. Using the new product from DST-CHEMICALS means that the offshore crew now work safely during the cleaning process, without involving any risks at all.

As any other high-end product from DST-CHEMICALS, this new product has been developed in close consultation with the customer and has undergone tests and improvements along the way. DST-OFFSHORE CLEANER is of course HOCNF approved in compliance with the OSPAR guidelines.

The Harmonised Offshore Chemical Notification Format (HOCNF) 2 applies to all chemicals used in connection with offshore exploration and production activities in the OSPAR maritime area. The OSPAR commission aims to protect and conserve marine animals and plants.

DST-CHEMICALS A/S also develops and produces water-based degreasers, cleaners and rust removers for the metal working industry.


  • To be used directly on deck and
    wires on offshore installations
  • Water-based and low alkaline
  • Ph 9.5
  • Removes grease and oil contamination
    from all surfaces


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Lower temperature and
extended bath life times

Renovation & repair

A smooth
wash process

VMS Group ensures a
safe working environment

VMS Group A/S – World Class Maritime Services covers all aspects of service within in the maritime and offshore industry and others. For the repair and maintenance service, the company is using DST-DEGREEZ/9E.

Workshop manager Kim Brohus had three all-important demands for the cleaner:
• The quality of the washed items had to be impeccable
• The product had to be a single use product and had to contain corrosion inhibitors
• The product had to be safe for the working environment and eco-friendly

All three demands were met, and moreover, the economic gain was an extra asset. DST-CHEMICALS and Brohus achieved the cost savings through lowering the temperature and extending the bath life times.

Kim Brohus comments: “We have an extremely close and very rewarding cooperation with the competent people from DST-CHEMICALS. They have found the perfect product to cover our needs – a product which fits the cleaning process of the various washes each day at our workshop.”

”Moreover, the service concept ensures that the wash process runs smoothly and that we achieve the best cleaning result all the time. The machine operators are extremely happy with the DST-DEGREEZ product, as it is eco-friendly and without any work-related nuisances at all.“

DST-CHEMICALS A/S develops and produces water- based degreasers, cleaners and rust removers for the metal working industry.


  • Water-based and alkaline
  • Removes grease, wax
    and oils from metal
  • pH 9.1
  • Works in spray, dip or
    ultrasonic applications
  • For steel, stainless steel,
    cast iron, copper and brass
  • Contains corrosion inhibitors

More about DST-DEGREEZ

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