When it comes to European doors and window systems in the U.S., there are a few options for tooling and components, though, as you noted, Rangate is one of the primary suppliers. They offer a variety of tools, weather-stripping, and sills specifically designed for European style doors and windows.
Other suppliers worth exploring for European door and window systems include Schüco and Rehau, both of which offer complete solutions, including profiles, seals, and tooling for manufacturing these systems. These brands are known for their quality and precision, which is essential for European-style doors that require more advanced fabrication techniques.
For tooling, some companies offer specialized equipment for the unique requirements of European-style tilt-and-turn windows and doors. You might also want to check out Hörmann and VEKA for additional components and system-specific tooling.
In terms of weather stripping and sills, these components are often customized based on the specific window or door profile. So, it might be worth connecting directly with a supplier who specializes in European systems to ensure you get the right fit for your project. Depending on the type of system you're using, a lot of these suppliers also offer kits that are designed for DIY and professional use alike.
It’s definitely a niche market here, but as interest in European doors and windows grows, more resources are becoming available.