21–23 Oct 2025
Arcotel Wimberger
Europe/Vienna timezone

Water-Based Lubricants in Power Tools for Construction: Tribological Performance and Corrosion Challenges

23 Oct 2025, 09:30
20m
Arcotel Wimberger

Arcotel Wimberger

Neubaugürtel 34-36 Vienna, 1070 Austria
Oral Presentation Water-based and green lubricants Electrical and energy systems

Speaker

Dr Jens Kondratiuk (Hilti AG)

Description

The study investigated a water-based lubricant specifically designed for power tools, such as diamond drilling tools used in the construction industry. The water content in the lubricant enhances heat transfer capabilities and provides superlubricity, thereby improving thermal management and gearbox efficiency during operation. The formulation was evaluated using standardized ASTM laboratory tests and custom-designed accelerated corrosion tests that simulate the conditions within gearboxes of high-performance tools. While laboratory conditions indicated modest corrosion risks, the real-application benefits of effective lubrication and enhanced cooling appear to outweigh these concerns. Additionally, the study addresses the challenges of sealing water-containing lubricants with FKM and NBR radial shaft seals. Future research is recommended to further optimize traditional sealing systems to ensure reliability in demanding environments.

Authors

Dr Jens Kondratiuk (Hilti AG) Dr Alexander Tomandl (Hilti AG) Dr Eva-Maria Mautner (Klüber Lubrication GmbH ) Dr Philipp Lorenz (Klüber Lubrication GmbH ) Stefanie Haupt (Stefanie Haupt)

Presentation materials

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