BONAITI B-TWIN 85/50 Magnetic Mortise Lock White EN 12209 Drop-In Retrofit

Product Overview

The BONAITI B-TWIN 85/50 Magnetic Lock is designed for interior doors, particularly for flush (non-rebated) types in residential and commercial buildings. Manufactured in Italy, it employs advanced magnetic technology for silent and smooth operation and is suitable for both left- and right-handed doors. Certified to EN 12209:2005 and rated for mechanical class 3 durability, the lock combines a patented magnetic latch mechanism with contemporary aesthetics, keeping door hardware nearly invisible when the door is open.

The key differentiator of this SKU is its drop-in retrofit compatibility?its dimensions match the previous B-TWO model, allowing effortless replacement without the need for additional drilling or door modifications. This feature eliminates installation risks and reduces labor costs, making it especially appropriate for renovation projects, property management companies, and contractors replacing locks in bulk within modern interior environments.

Key Features

• Patented magnetic latch system ? ensures exceptionally quiet and light operation for noise-sensitive environments


• Certified EN 12209:2005 ? meets stringent European durability and performance standards


• Mechanical class 3 durability ? rated for long-term, low-maintenance operation


• Universal handing ? compatible with both left- and right-handed doors


• Drop-in B-TWO retrofit ? identical dimensions to previous model for direct replacement with no additional drilling


• Upgrade magnets ? enhanced and smoother action compared to previous magnetic locks


• Materials ? steel and glass-fiber reinforced polymer construction for improved strength

Technical Specifications

• Lock Type: Magnetic mortise


• Center Distance: 85 mm


• Backset: 50 mm


• Handing: Universal (left/right)


• Material: Steel, glass-fiber reinforced polymer


• Color: White


• Certification: EN 12209:2005


• Mechanical Class: 3

Applications

The BONAITI B-TWIN 85/50 Magnetic Lock is used in interior flush doors for residential apartments, office spaces, hotels, and modern commercial interiors where a discreet and quiet locking mechanism is desired. Its EN 12209 certification supports installation in projects with durability requirements, while retrofit compatibility suits large-scale refurbishments, managed properties, and multi-unit developments. Variants are available for cylinder, key, and WC privacy applications.

Packaging & Shipping

Standard export packaging. Each unit includes the lock body, faceplate, and installation accessories. Please note: strike plates must be ordered separately when replacing older lock models.