BONAITI B-TWIN 85/50 Magnetic Lock EN 12209 Satin Gold Direct B-TWO Replacement

Product Overview

The BONAITI B-TWIN 85/50 magnetic lock with cylinder is designed for use in interior doors, with specific compatibility for flush (non-rebated) doors. Manufactured in Italy, it meets EN 12209:2005 mechanical standards (classification: 3 H 4 0 0 A 2 H D 1 0) and achieves the highest mechanical durability class 3. Its patented magnetic system operates quietly and efficiently, thanks to improved magnets and a glass fiber-reinforced polymer-stainless steel construction.

The key differentiating feature of this SKU is its dimensional compatibility with prior B-TWO models, allowing simple replacement without additional door drilling. This minimizes installation complexity and mitigates retrofit risk for property managers and fit-out contractors upgrading door hardware in existing interiors. Particularly suited for bulk procurement in commercial renovation projects and for professional installers handling large-scale door upgrades.

Key Features

• Magnetic latch mechanism ? patented design ensures silent, smooth operation with minimal wear


• EN 12209:2005 certified ? compliance with European mechanical standards, class 3 durability


• Universal installation ? fits both left- and right-handed interior doors


• Dimensional match to B-TWO model ? enables direct replacement without new drilling or rework


• Glass fiber reinforced polymer and steel ? enhanced durability for high-traffic applications


• No lubrication required ? maintenance-free operation throughout product life


• Satin gold finish ? contemporary, low-visibility trims for modern interior aesthetics

Technical Specifications

• Lock Type: Magnetic, interior lock with cylinder


• Backset: 50 mm


• Case Size: 85 mm


• Material: Steel, glass fiber reinforced polymer


• Finish: Satin gold


• Certification: EN 12209:2005


• Mechanical Class: 3


• Handing: Universal (left/right)


• Compatible Door Types: Flush/interior

Applications

Used in flush and standard interior doors of residential, hospitality, office, and retail environments. Ideal for commercial upgrades, renovations, and fit-out projects requiring silent operation, EN 12209 compliance, and durable, low-maintenance locking. Compatible with doors needing retrofit from B-TWO series, or new installations in modern design-focused settings.

Packaging & Shipping

Standard export packaging. Each unit includes the lock body, installation accessories, and cylinder. Bulk shipments for large orders are available upon request.