Transport of wind turbine blades through cargo.

WIND TURBINES AS CARGO

The rapid global shift toward sustainable energy is driving the installation of ever‑larger onshore and offshore wind turbines.
As leading manufacturers such as Vestas, Siemens Gamesa, Goldwind, and General Electric scale up production, the size of critical components—especially wind turbine blades—continues to increase.
With blade lengths now often exceeding 80 to 100 meters, safe and efficient transport has become a major challenge for logistics and shipping companies worldwide. Transporting oversized wind turbine blades requires specialized equipment capable of handling extreme loads, long distances, and demanding sea conditions.

To meet these challenges, industry leaders rely on the CONTECH® T‑12 double twistlock, a proven solution designed specifically for securing large wind‑blade transport frames. The T‑12 has been used extensively by major turbine manufacturers and shipping operators, demonstrating exceptional reliability, stability, and ease of use during the maritime transport of wind turbine components.By ensuring secure interconnection of blade‑transport frames, the T‑12 significantly enhances safety, stacking efficiency, and structural integrity during shipping operations. Its robust design reduces the need for additional lashing equipment, speeds up loading processes, and supports the logistics demands of today’s large‑scale wind energy projects.
As the wind sector continues to grow, CONTECH® remains committed to delivering certified, high‑performance lashing and securing solutions that support the global energy transition and guarantee the safe transport of next‑generation wind turbine blades.

What makes it so challenging?

Transporting a full wind turbine is complex because each main component behaves differently:

Nacelle – extremely heavy and compact, requiring certified lifting and high‑strength securing points.
Blades – very long, light, and sensitive to deformation, demanding specialized support and careful handling.
Tower sections – heavy, oversized steel tubes that need strong foundations and precise load control.

These three components require different securing methods and equipment, including lashing chains, D‑rings, twistlocks, webbing straps, lollipop fenders, and offshore handling sticks. Together, they ensure safe, efficient transport of wind‑turbine components across road, port, and sea logistics.

What needs to be taken into account when securing wind turbine blades?

Securing wind turbine blades requires strict compliance with international cargo‑securing standards and careful attention to their high value and delicate structure. While each manufacturer has its own procedures, several key principles always apply:

Follow IMO regulations (CSS Code) to ensure compliant and safe stowage of wind turbine blades during sea transport.
Protect workers and cargo by using certified securing equipment and safe handling procedures at all stages.
Account for the high value and sensitivity of the blades—often costing over 170,000 USD—where even minor damage can cause major financial loss and delays to the entire wind‑farm installation project.

Effective securing reduces risk, protects project timelines, and ensures blades reach their destination safely and ready for installation.

Features of the double twistlock T-12

The CONTECH® double twistlock T‑12 is engineered for heavy‑duty securing of wind turbine components and is available in multiple sizes to fit different transport frames. It has proven its reliability during numerous shipments of wind turbine blades, nacelles, and tower sections, used by leading manufacturers and shipping companies worldwide.

In recent years, hundreds of wind‑energy components have been safely transported using Contech lashing solutions—including the T‑12 double twistlock, lashing chains, webbing straps, and bridge fittings. The T‑12 ensures fast, stable, and compliant locking between transport frames, making it an essential tool for modern wind‑energy logistics.

For operation, maintenance, and technical details of the T‑12, you can read more in this blog.

What is T-12 all about?

The CONTECH® T‑12 double twistlock is designed to make wind‑turbine blade transport faster, safer, and more efficient. By allowing lashing crews to secure blade frames quickly and with consistent precision, the T‑12 helps increase the number of blades that can be shipped per voyage while maintaining high safety standards.

With higher operational efficiency at minimal additional cost, the T‑12 has become a key component in modern wind‑energy logistics—trusted by leading manufacturers and shipping companies to secure today’s oversized wind‑turbine components.