Black Door Lock Cylinder 90mm 40mm Key × 50mm Thumb – Premium European Cylinder Lock

The Black Door Lock Cylinder 90mm by Importa UAE is a premium European profile cylinder designed for secure, smooth, and reliable door locking. Manufactured from high-quality brass and finished in an elegant black coating, this cylinder combines durability, functionality, and contemporary design for modern residential and commercial projects.

Featuring a 40mm key-operated side and a 50mm thumb-turn side, this cylinder provides convenient access control while allowing easy locking and unlocking from inside the room. The thumb-turn mechanism eliminates the need for a key on the interior side, making it a practical solution for villas, apartments, offices, hotels, and hospitality projects.

Technical Specifications

Cylinder Length: 90mm
Configuration: 40mm Key × 50mm Thumb Turn
Type: European Profile Cylinder
Material: Premium Brass
Finish: Black
Available Colors: Black and Silver
Installation Bolt: 65mm
Includes: 3 Laser-Cut Keys
Suitable for Interior and Exterior Doors

Understanding the 40mm × 50mm Configuration

Many customers ask what the cylinder dimensions mean.

The 90mm measurement represents the total length of the cylinder.

40mm Key Side: Distance from the key opening to the center cam of the cylinder.
50mm Thumb-Turn Side: Distance from the thumb turn to the center cam of the cylinder.

This offset design is commonly used when the door thickness or hardware configuration requires different measurements on each side of the door.

Choosing the correct cylinder size ensures proper installation, smooth operation, and an attractive finish.

Key Features

Premium brass construction
Durable black architectural finish
Smooth key and thumb-turn operation
European standard cylinder design
High resistance to daily wear
Includes 3 precision laser-cut keys
Easy installation
Suitable for modern residential and commercial projects

Applications

The Black Door Lock Cylinder 90mm is ideal for:

Hidden doors
Flush doors
Wooden doors
HPL doors
Villa projects
Apartments
Hotel room doors
Office spaces
Restaurants and cafés
Commercial fit-out projects

Modern Design for Contemporary Interiors

The black finish creates a refined architectural appearance and pairs perfectly with black door handles, concealed hinges, magnetic locks, and modern hidden door systems.

When used as part of a complete door hardware package, it helps create a seamless and coordinated interior design that aligns with current European architectural trends.

Why Choose Importa UAE?

Importa is the first manufacturer of hidden doors in the UAE and a trusted supplier of premium door hardware solutions. Our product range includes hidden doors, aluminium shadow gap profiles, skirting systems, magnetic locks, hinges, cylinders, handles, and complete architectural door solutions.

Architects, contractors, developers, fit-out companies, and interior designers across Dubai, Abu Dhabi, Sharjah, Ras Al Khaimah, Fujairah, Ajman, and Al Ain choose Importa products for their quality, reliability, and contemporary design.

The Black Door Lock Cylinder 90mm 40mm Key × 50mm Thumb is the ideal solution for projects requiring dependable security, smooth functionality, and a sophisticated modern finish.