BONAITI B-TWIN 85/50 Magnetic Lock Polished Chrome EN 12209:2005 Retrofit

Product Overview

The BONAITI B-TWIN 85/50 magnetic lock in polished chrome is an Italian-manufactured lock designed for interior, especially rebated (flush-fitting) doors in residential and commercial spaces. Equipped with advanced magnetic technology, it operates quietly and smoothly, and is certified to EN 12209:2005 with mechanical durability class 3, signifying long, maintenance-free service and compliance with recognized European standards.

A standout feature of this lock is its direct retrofit compatibility with previous B-TWO models?no additional drilling required due to matching dimensions. This eliminates risk of costly rework during refurbishment or replacement projects and simplifies upgrades for property managers and construction contractors. Recommended for refurbishment, specification, and bulk procurement in hospitality, office fit-outs, and high-end residential developments.

Key Features

• EN 12209:2005 certified ? meets European standards for safety and durability in lock mechanisms


• Magnetic latch technology ? exceptionally smooth, silent, and maintenance-free operation


• Mechanical grade 3 durability ? engineered for long service life in frequent-use internal doors


• Universal handing ? suitable for both left- and right-handed door installations


• Direct B-TWO retrofit ? installs in existing prepped doors without extra drilling, saves labor


• Low-visibility hardware ? lock components nearly invisible with open door for modern aesthetics


• Glass fiber reinforced polymer elements ? increased resistance and stability compared to standard plastics

Technical Specifications

• Lock Type: Magnetic mortise lock on cylinder


• Center Distance (Backset): 85 mm


• Distance from Faceplate to Spindle: 50 mm


• Materials: Steel, glass fiber reinforced polymer


• Finish: Polished chrome


• Handing: Universal (left/right)


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


• Mechanical Class: 3 (highest durability)

Applications

Intended for internal flush-fitting doors in office buildings, hotels, upscale residential apartments, and other commercial properties. Compatible with doors requiring a silent, maintenance-free latch. Frequently used in refurbishment projects where smooth operation and contemporary aesthetics are prioritized, and where retrofitting existing Bonaiti B-TWO locks without additional door preparation is required.

Packaging & Shipping

Standard export packaging. Each lock includes the body with faceplate, mounting accessories, and installation instructions. Strike plates for replacement or retrofit must be ordered separately if required.