Wind Power and Energy
Optimising reliability, reducing maintenance and extending the service life of critical components in wind power generation.
As the global demand for clean, sustainable energy grows, wind power has emerged as a critical force in the renewable energy sector. We provide high-performance sealing solutions that meet the rigorous demands of wind turbines and associated energy systems.
Renewable energy systems, whether it be wind power or hydro power, need low friction sealing solutions that are reliable and efficient, providing longevity between set maintenance periods as accessibility is usually limited due to their locations.
M Seals provides a range of low friction sealing solutions, utilising our vast array of HNBR, NBR, FPM, PTFE and internally lubricated polyurethane materials. A bespoke and standard seal range is available to suit the application requirements of hydraulic cylinders for turbine blade pitch and yaw control, along with sealing systems for gearboxes and braking systems.
Large diameter rotary shaft seals can be designed and manufactured to suit all types of environmental conditions.
Challenges in Wind Energy Applications
Wind turbines operate in some of the harshest environments on earth – from offshore platforms battered by saltwater, to remote onshore sites exposed to temperature extremes and high mechanical loads. These conditions place immense stress on turbine components, making effective sealing essential to:
- Prevent lubricant leakage
- Protect against dust, dirt, and moisture ingress
- Withstand wide temperature and pressure variations
- Resist degradation from UV, ozone, and chemicals
Sealing Solutions for Wind Turbines
From our experience of working with leading manufacturers of wind turbines, we have gained specific experience in the various sealing challenges in the nacelle. The main bearings of today’s wind turbines require large radial shaft seals with diameters of several metres and specially designed finger or garter spring systems.
With this in mind, we have developed special shaft seals that can be retro fitted in the turbine without removing the shaft. We also have a range of materials to suit a large temperature range and that have good resistance to wear, ozone and UV rays.
We offer sealing solutions for shaft sealing in the gearbox, as well as hydraulic seals in pitch, yaw control and brake systems, in a vast array of low friction PTFE and internally lubricated polyurethane materials in bespoke or standard ranges.
We also offer on-site assistance with installation and troubleshooting as part of our service.
We will work closely with you to gain a full understanding of your application needs before recommending the best sealing solution.
Case Study
Hydropower Unit Overhaul
A customer initially contacted us to request a quote for replacing large diameter rotary shaft seals, specifically sizes 260x300x20 and 300x340x20. Further conversations revealed a problem related to rising water levels and the resulting increase in water pressure. This presented some challenges as the current rubber rotary shaft seals were only designed for a pressure of 0.5 bar and were installed back to back. Our solution was to replace the seal.
Seals for Wind Power Systems
Used in gearboxes, generators, and nacelle components, these seals maintain lubricant integrity and block contaminants.
Designed for pitch and yaw control systems, these seals handle high pressures and ensure reliable hydraulic function.
Essential for static sealing in nacelles, towers, and electronic enclosures, where resistance to temperature fluctuations and weather is critical.
Tailored solutions for unique turbine designs and environmental conditions, including split seals for ease of maintenance in confined or elevated spaces.
Advanced Materials for Demanding Conditions
Our sealing solutions are manufactured from a wide range of high-performance materials to ensure durability, flexibility, and chemical resistance:
- Fluoroelastomers (FKM/Viton™): Exceptional temperature and chemical resistance, ideal for gearbox and hydraulic system seals.
- PTFE (Teflon™): Low friction, excellent for high-speed applications and chemically aggressive environments.
- Nitrile Rubber (NBR): Cost-effective choice for moderate temperature and oil resistance.
- Hydrogenated Nitrile (HNBR): Enhanced thermal and ozone resistance for longer service life.
- Silicone Elastomers: Excellent flexibility and low-temperature performance for electrical enclosures and static seals.
- Polyurethane (PU): Tough and wear-resistant, used in hydraulic seals and wipers.
Custom Sealing Solutions
Custom sealing solutions are essential for wind farms, where each installation can present unique environmental and engineering challenges, especially in offshore locations. Custom-designed solutions are tailored to fit specific geometries, load conditions, and environmental exposures, ensuring optimal performance and longevity. Whether it's adapting to complex nacelle designs, accommodating large blade root diameters, or withstanding dynamic movement at tower joints, custom seals offer superior fit and functionality. These solutions also allow for the integration of advanced materials that meet exacting resistance requirements for saltwater, UV, temperature extremes and mechanical stress. When standard seals are not suitable or do not give the required efficiency, custom components can reduce maintenance intervals and enhance the reliability of critical systems.
Proven Performance in Every Environment
We have over 20 years' experience providing seals to the wind power and renewable energy industry, providing a range of low friction sealing solutions that are reliable and efficient, with longevity between set maintenance periods.
Our seals are trusted by leading wind power OEMs and maintenance providers. Every product we deliver meets strict industry standards, including ISO 9001.
Talk to one of our technical engineers today to learn more about how we can help you with your sealing needs for wind power and renewable energy applications.