4 O‑Ring Binder Mechanism A4 & A5

The 4 O Ring Binder Mechanism is a durable round O‑ring binding mechanism, designed for riveting securely to the spine of a binder. Manufactured for professional stationery and binder production, this mechanism delivers smooth ring operation, secure document retention, and long‑term reliability.

Available for both A4 and A5 sheet formats, this 4‑ring O‑ring mechanism range offers flexibility for producing binders, manuals, training folders, and presentation materials. The O‑ring design allows for easy page turning and consistent document alignment, making it ideal for office, educational, and commercial applications.

Widely used by stationery manufacturers, printers, and trade suppliers, this 4 O‑ring mechanism provides a dependable solution for compact and full‑size binder production.

4 Ring Mech Options

4 O Ring Mechanism – A4 Sheets

• Ring Spacing: 80‑80‑80mm
• Application: A4 binders and folders

4 O Ring Mechanism – A5 Sheets

• Mechanism Length: 210mm
• Ring Spacing: 45‑65‑45mm
• Application: A5 binders and compact folders

All variants are designed for rivet fixing directly to the binder spine.