Supro Trailer produces Extendable trailer and windmill blade adapters for the windmill blade transport.

Windmill Blade Extendable Trailer

Supro Trailer delivers at least 30 windmill blade extendable trailers to the global market every year, securing its position among the top international suppliers!
Our trailers offer both manual and automatic self-steering functions, providing flexibility for various transport needs. We also offer customization options, including flatbed and gooseneck structures, tailored to meet specific requirements.
For self-steering models, Supro Trailer provides three configuration options:

  • Basic Version – External hydraulic and electrical pipelines require manual arrangement after the trailer is closed.
  • Upgraded Version – Equipped with an electric winch for automatic retraction of hydraulic and electrical pipelines, improving operational efficiency and maintenance.
  • Premium Version – Features built-in hinges of the same quality as European suppliers, allowing a single operator to complete all extension and retraction tasks effortlessly—eliminating concerns about pipeline management.
This is Supro Trailer—backed by extensive experience and advanced design, making transportation easier and more efficient! Easy Supro, Making Your Heavy Hauls Easy!


"ST63A4-A" Manual Steering Extendable Trailer

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"ST63A4-B" Manual Steering Extendable Trailer

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"ST70A4S-A" External Hoses Automatic and Manual Steering Extendable Trailer.

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"ST70A4S-B" Electric Winch Automatic and Manual Steering Extendable Trailer.

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"ST70A4S-C" Built-in Hinge Automatic and Manual Steering Extendable Trailer.

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1 Client, 3 Times Collaborations, 27 Extendable Trailers


Introduction of Windmill blade adapter

Supro Trailer has developed 3 generations of windmill blade adapters which are “STBA-L10”, “STBA-M20” and “STBA-H30”.

Factory yard of  Supro windmill blade adapter

The “STBA-L10” is our first generation of the windmill blade adapter which has 2pcs cylinders to raise up the windmill blade.
And the “STBA-M20” is our second generation of the windmill blade adapter which has 2pcs cylinders to pull up the cylinders. So the “STBA-M20” has a better stable ability than the “STBA-L10”.

The “STBA-H30” is the most advanced windmill blade adapter which also has 2pcs cylinders to pull up the blade, but also it can 2pcs hydraulic cylinders can adjust the position of adapter between with the below semi trailer. And also the “STBA-H30” combines with our customized low bed trailer which can adjust the width of the low bed trailer!

Drawing of STBA-L10

drawing of STBA-L10 windmill blade adapter

Photo of STBA-L10

windmill blade dapter

windmill turbine blade adapter

Related link: Learn the specifications of STBA-L10


Drawing of STBA-M20

drawing of STBA-M20 windmill blade adapter

drawing of windmill blade adapter

Photo of STBA-M20

STBA-M20 WINDMILL BLADE ADAPTER

STBA-M20 windmill blade adapter

Related link: Learn the specfications of STBA-M20


Drawing of STBA-H30

drawing of STBA-H30 windmill blade adapter

Photo of STBA-H30

STBA-H30 windmill blade adapter

Related link: Learn the specfications of STBA- H30


Related links of Supro Trailer:

1. Production information of Windmill tower semi trailers

2. Performance cases of Windmill blade and tower semi trailers

3. Learn about Supro Trailer

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