OVJ Acrylic Spring Hinge 35mm x 45mm

The OVJ Acrylic Spring Hinge is a compact, precision-made hinge mechanism designed for controlled opening and return motion in small-scale applications. Encased within a clear acrylic block, the internal metal shaft and torsion spring are fully visible, allowing users to observe the mechanical movement in action. When opened, the hinge expands to 35 mm by 45 mm, and when closed, it returns neatly to a compact 13 mm by 45 mm form, making it suitable for projects where space efficiency and clean alignment are important.

Built for use in model-making, kinetic art, and functional prototyping, this hinge provides consistent tension through its spring-loaded design, enabling smooth and repeatable movement. The rigid acrylic housing offers structural stability while maintaining a clean, technical aesthetic, making it appropriate for both working mechanisms and presentation pieces where internal mechanics are part of the visual experience.