Łucznik E8 40/55 Euro Cylinder Lock Insert Class 6.D Anti-Bump Nickel Finish

Product Overview

The Łucznik E8 40/55 Double Cylinder Euro Profile is a high-security lock insert designed for use in commercial and residential building doors, including fire-rated applications. Certified to class 6.D with burglary resistance class C and a certificate from the Instytut Mechaniki Precyzyjnej, it is suitable for installations requiring compliance with advanced safety standards. The product supports Master Key and Keyed Alike systems, facilitating organizational key management in larger facilities.

A standout feature of this SKU is its integrated anti-bumping and anti-snap technology, which includes an automatic locking mechanism that engages if tampering is detected. This reduces procurement risk for security-focused buyers by ensuring enhanced resistance against prevalent lock-breaking techniques. Highly recommended for property managers and installers specifying hardware for high-security zones, such as schools, healthcare centers, and multi-unit residential projects.

Key Features

• Certified burglary resistance class C ? tested to high mechanical and security standards for demanding installations


• Anti-bumping and anti-snap protection ? integrated mechanisms guard against common forced entry methods


• Fire door compatible ? suitable for use in fire-rated door sets per certification


• Master Key and Keyed Alike compatible ? allows scalable key system management for large facilities


• Mechanism durability over 100,000 cycles ? supports long-term use in high-traffic applications


• 5 vertically milled keys included ? precise cutting for control and duplication security


• Nickel satin or brass finishes ? available to match building aesthetics

Technical Specifications

• Cylinder Profile: Euro Profile D


• Insert Length: 40/55 mm


• Material: Brass


• Finish: Nickel satin


• Certification: 6.D (Instytut Mechaniki Precyzyjnej)


• Burglary Resistance Class: C


• Attack Resistance: D


• Key Security Level: 6


• Mechanism Lifespan: >100,000 cycles


• Fire Door Suitability: Yes


• Key Count: 5 vertically milled keys


• Master/Keyed Alike System: Supported


• Manufacturer: Łucznik LOCKPOL (MCM)


• Available Lengths: 60 to 200 mm

Applications

Suitable for installation in fire-rated, internal, and external doors in residential complexes, commercial offices, public administration buildings, healthcare facilities, and educational institutions. Supports both single door security and centralized key management systems such as Master Key, making it effective for property administrators and OEM door manufacturers. Its anti-burglary features are tailored for high-risk zones.

Packaging & Shipping

Each cylinder is packed in a factory-sealed box with 5 vertically milled keys, a key code card for duplication control, and mounting hardware. Export packaging used for bulk shipments; tamper-evident seals ensure product security until installation.