Window System Without Drilling: Discover Our New Kepler System
Do your projects involve tilt-and-turn windows or glazed doors? Discover the Kepler System, Rutperfil’s professional solution that integrates directly into the frame (PVC, aluminum, wood) or the glass itself.
For any professional—whether an installer, décor shop, or interior designer—tilt-and-turn windows and hinged glass doors are a constant challenge. They are practical, modern, and efficient, yet dressing them is a headache.
A standard roller blind installed on the wall or ceiling prevents the sash from opening fully. If installed with extra clearance, it looks unsightly and allows light gaps at the sides.
The solution? Stop fighting with the wall and bring the blind to the window sash itself.
The Professional Solution: Integration, Not Just Adaptation
This is where systems engineering comes into play. Instead of a “workaround,” you need a solution designed from the ground up for this specific purpose.
At Rutperfil, we have developed the Kepler System, a roller blind system with a cassette designed specifically to integrate seamlessly into the sash of the window or door.
It’s not just a normal blind. It is a compact system that becomes an integral part of the window structure.

What Advantages Does the Kepler System Bring to Your Projects?
Total Functionality for the End User The client can open, turn, and tilt their window or door without the blind getting in the way. The blind moves with the sash, maintaining privacy and light control in any position.
Maximum Installation Versatility The Kepler System is designed to adapt to any project. It can be installed quickly and precisely onto the window or door frame—whether aluminum, PVC, or wood. Furthermore, for an even more minimalist finish, it can be attached directly to the glass, becoming fully integrated.
Clean and Minimalist Finish (Ideal for Interior Designers) The system features a top cassette (Box profile) and optional side guides that conceal the mechanism and the fabric roll. The result is a clean, integrated, and professional finish with no light gaps. It delivers the minimalist aesthetic that modern projects demand.
Efficient Components and Coordinated Colors The system is flexible. It is designed for small diameter tubes (like our Roller Tube 16) and compact mechanisms (such as the Brake + Mimas20 Idler) that support lightweight fabrics (up to 1kg)—perfect for this application. Additionally, the profiles (cassette, guides, bottom bar) are available in the most in-demand joinery colors: White, Light Grey, and Black.
When Should You Propose a Kepler-Type System?
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On glazed doors (e.g., balcony or terrace exits) where a standard blind would obstruct the walkway or the door handle.
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In kitchens and bathrooms with tilt-and-turn windows where practicality is key.
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In bedrooms where total darkness is required (using blackout fabric combined with the side guides).
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In office or contract projects featuring modern PVC, aluminum, or wood joinery.
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For any client who values a technical, clean finish that is fully integrated into the glass itself.

Don’t Lose Projects Because of a Window
As professionals, our job is to provide solutions. Offering a system like Kepler demonstrates your expertise and sets you apart from the competition that only offers standard solutions.
At Rutperfil, as B2B manufacturers, we have the know-how and the product to help you overcome these challenges.
Do you have a project with tilt-and-turn windows or hinged doors?
Contact our technical team or download the Kepler System technical data sheet to see full specifications and installation methods. You can also email us at either of the following addresses:
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marketing@rutperfil.com
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info@rutperfil.com
Want to see how easy it is to install the Kepler System?
If you want to see a hassle-free installation, check out this video we have published on our social media channels.