Applications Nacelles
In the heart of every wind turbine, the nacelle faces some of the most demanding mechanical and environmental challenges.
At Vink Plast, we supply engineered plastic components designed to perform reliably under high loads, continuous rotation, and exposure to harsh weather.
From precision-machined sliding bearings in yaw systems to corrosion-resistant covers and maintenance-free materials, our solutions ensure smooth operation, low noise, and long service life.
Whether it’s for rotation mechanisms, service platforms, or protective elements, we provide materials, machining, and technical support that meet the strict requirements of the global wind industry.
Sliding pads for yawing systems
The yawing system is part of the Nacelle. It allows the turbine nacelle to automatically head into the wind to maximize the power generation.
Plastics are used for the yawing system that turns the wind turbine as the material must withstand friction. This is both to reduce wear on the material and make the movement as silent as possible.
A common type of plastic for this purpose is a version of PA (nylon) often with certain additives to make the material self-lubricating. PETP (Ertalyte) is another common material choice.
Customer
requirements:
- Low to very low wear. Long lifetime
- Low stick-slip which give low noise
- High creep resistance
Our material recommendation:
- PETP – Ertalyte
- PA6 with oil – Ertalon LFX
Our production recommendation
- 5-axis milling
- Laser engraving for identification if required by the customer
Grease trays
Grease or lubricant is used in the yaw system for the sliding pads. The grease cannot be allowed to drop inside or outside the turbine, so a grease tray is needed under the yaw system.
Depending on the system a small tray can follow the calibers around or a circular tray can cover the entire way around the top of the tower.
Customer
requirements:
- Can withstand grease
- Low cost
- Easy to clean
Our material recommendation:
- PP-C
- PEHD
Our production recommendation
- Vacuum Moulding
- Injection Moulding
Covers
Covers are needed for different areas of the nacelle. They can be cost-effectively made with plastic in different forms and are safe for personnel to step on and blocks electric or mechanical areas that can be dangerous for a person to reach into.
Customer
requirements:
- Low cost
- Easy to attach and remove
- UV-stable if outside
Our material recommendation:
- PP-C
- PEHD
- PC (Polycarbonate) – Lexan
- ABS
Our production recommendation
- Vacuum Moulding
- Injection Moulding
Bolt covers and thread protection
Thread and bolt heads needs protection from corrosion and impact during transport and during service of the turbine. Plastic covers solves this problem. We offer both standard and customer specific solutions.
Customer
requirements:
- Can withstand grease
- Low cost
- Easy to attach and remove
- UV-stable if outdoors
Our material recommendation:
- PP-C (regenerated)
- PEHD (regenerated)
- Soft PVC
Our production recommendation
- Dip casting
- Injection moulding
