+31 (0)10 – 292 97 61 [email protected]



Topclamp Round

Topclamp Large is a unique system consisting of joints, round tubes and connectors. Our patented connector is a mechanism that , when inserted into the joint and tightened, pulls the profile tightly against the joint for a strong, flush connection with a single screw.

  • Outstanding quality
  • Unique clean design
  • Reusable and sustainable
  • Intuitive, easy and quick
  • Endles customisation is possible
  • Products shipped in compact kit-form
  • Direct support from our engineering team
  • Worldwide shipping
  • Topclamp Round is available in size 38.4 mm. We carefully control the tolerances for precise results.
    As standard the joints are uncoated (plain / natural aluminium). On request we can coat the parts in a colour and finish of choice.

    Topclamp connector

     The patented Topclamp connector


    Years of development went into creating the Topclamp connector.
    By turning a single screw our connector makes a strong, flush connection between the joint and profile.
    The connector is specially designed for ease of use and to be reusable, many times over.

    A demonstration of the connector can be found in the video below.

    Topclamp Round

    A wide variety of joints, profiles and accesories are available, you can find an overview and price in the price list.

    Custom joints and components are also possible. Special angles, additinional holes etc. can be made on request.

    We also offer to weld connections pieces to profiles, turning them into large joints (see example pictures on the left). This can make structures stiffer and faster to assemble and disasemble.

    Application examples

    For more examples please visit the gallery

    We can make a specified quote based on a drawing / sketch with dimentions or a list of parts.

    We often accompany our quotes with a clear drawing indicating the parts and lengths of profiles.

    Technical specifications and 3d models are available on the download page.

    Please send your enquiry including any extra information to [email protected],com or fill in the webform.

    Tarification des systèmes d'innovation néerlandais 3


    Dutch Innovation Systems

    Koperslagerstraat 16
    3077 MD Rotterdam

    +31 10 292 97 61

    [email protected]




    Monday – Friday: 8:30am – 5:30pm