Friction Stay Hinge

A friction stay hinge is a specialized window hinge that allows the window sash to remain open at different positions using friction between the hinge arms.

This type of hinge is commonly used for aluminum windows such as Xingfa systems, uPVC windows, and other casement or top-hung window designs in residential and commercial buildings.

The friction mechanism enables smooth operation while keeping the window stable at the desired opening position without requiring an additional stopper.

Typical technical specifications of friction stay hinges include:

- Material: SUS304 or SUS201 stainless steel for durability and corrosion resistance.
- Hinge length: typically from 10 inches to 18 inches (approximately 250 – 450 mm).
- Load capacity: about 20 – 40 kg per pair depending on the model.
- Opening angle: usually between 60° and 90° or more depending on the window design.
- Steel thickness: approximately 2.0 – 3.0 mm for improved rigidity and stability.

Friction stay hinges are widely used in aluminum window systems, uPVC window frames, and other casement or top-hung windows thanks to their ability to hold the window securely while providing smooth and quiet operation.