BONAITI B-TWIN 90/50 Magnetic Mortise Lock Satin Chrome EN 12209 B-TWO Retrofit

Product Overview

The BONAITI B-TWIN 90/50 magnetic lock in satin chrome finish is an Italian-made mortise lock for interior doors, with a focus on non-rebated (flush) door applications in residential and commercial settings. Certified to EN 12209:2005 and awarded the top mechanical durability class (grade 3), it ensures long-term reliability and silent operation thanks to a patented magnetic latch and strike system. The lock is suitable for both left- and right-handed doors and operates without lubrication due to upgraded magnetic components and materials.

A key differentiator of this model is its full backward compatibility with B-TWO lock installation dimensions, enabling retrofit replacement with no need for additional drilling or modification. This feature is critical for refurbishment projects and rapid door hardware upgrades in hotels, offices, or high-turnover rental properties, significantly reducing installation time and cost risks for contractors and facility managers. It is especially recommended for bulk procurement in interior fit-outs where uniform aesthetics and lasting performance are required.

Key Features

• Patented magnetic latch ? silent and smooth closing action for noise-sensitive interiors


• EN 12209:2005 certified ? fulfills strict European mechanical lock standards


• Mechanical class 3 durability ? rated for extended lifecycle in frequent-use environments


• Universal handing ? suits both left- and right-opening doors, minimizing stocking complexity


• Tool-free B-TWO retrofit ? mounts in existing cutouts without extra drilling or mortising


• No lubrication required ? glass fiber reinforced plastics and improved magnets provide maintenance-free operation


• Satin chrome finish ? modern aesthetic, blends with contemporary interior design

Technical Specifications

• Lock Type: Magnetic mortise


• Center Distance: 90/50 mm


• Handing: Universal (left/right)


• Certification: EN 12209:2005 (3 H 4 0 0 A 2 H D 1 0)


• Durability Grade: 3 (mechanical class)


• Material: Steel, glass fiber reinforced plastic


• Finish: Satin chrome


• Key Type: Standard key (1 included)

Applications

Designed for interior single-leaf wooden doors in offices, hotels, homes, and public or commercial buildings where silent operation and flush aesthetics are priorities. Well-suited for non-rebated (flush) door designs, both in new installations and in retrofit scenarios replacing B-TWO locks. Appropriate for high-frequency doors in office corridors, boutique hotels, and premium residential fit-outs demanding long-lasting, low-maintenance hardware certified to EN 12209.

Packaging & Shipping

Standard export packaging. Unit includes the lock body, one key, faceplate, strike plate (where included), and installation hardware. Installation instructions and certification documentation are provided with each product.