The C1 Wedge Connection™

Lowering the cost of wind energy.

Bringing the industry the strongest and safest flange connection

The C1 Wedge Connection™ is the high capacity wind turbine and foundation interface connection. It can deliver an ultimate and fatigue resistance that outperforms all bolted flange connections.

The C1 Wedge Connection enables the largest wind turbines in the world on monopiles

Overturning moments are increasing with increasingly larger wind turbines, the C1 Wedge Connection can deal with these larger loads without requiring a very large interface diameter. This reduces wave loading on the monopile significantly reducing the monopile weight and facilitates installation with conventional installation equipment.

How it works

The C1 Wedge Connection is a symmetric connection with a wedge shaped fastener that creates a strong and safe connection.
C1 Wedge Connection components

Start designing your own C1 Wedge Connection

C1 Connections has developed an analytical design tool. This tool enables anyone to make a design for a C1 Wedge Connection with only a few input variables. 

C1 Wedge Connection Design Tool

Two years track record in one of the world’s largest wind turbines

Pushing boundaries

The C1 Wedge Connection™ supports the use of large wind turbines both offshore and onshore.

Offshore

Onshore

Using the existing supply chain for flange production

Your benefits

when using the C1 Wedge Connection

Using the C1 Wedge Connection as a wind turbine interface offers several benefits.

The connection has a high ultimate and fatigue capacity, lowers CAPEX, and increases safety during installation.

Next Generation Wind Turbine featuring the C1 Wedge Connection

What we can do for you

We supply fasteners and tools for the C1 Wedge Connection™, and provide assistance with the design and fabrication of the connection.

Learn more about

The technology
The product
The benefits