B-Harko H6 Cylinder Insert 30/55 mm 6-Tumbler Class 6 Durability Nickel Satin EN 1303

Product Overview

B-Harko H6 Cylinder Insert 30/55 mm is a 6-tumbler door cylinder designed for use in residential and commercial door applications requiring heightened security and durability. Certified by the Building Research Institute (ITB) in compliance with PN: EN 1303:2015-07, it delivers a tested performance in environments exposed to corrosion and temperature fluctuations from -20°C to +80°C. The cylinder meets class 6.0 standards for durability, ensuring long-term operation in high-traffic doors.

The distinguishing feature is its class 6 durability rating with a minimum of 100,000 cycles and 6 key protection tumblers, providing increased security against unauthorized access and key duplication. These attributes are critical for facility managers and procurement teams seeking high-performance, certified door hardware for projects where strong resistance to wear, corrosion, and key manipulation is required. Particularly suited to bulk procurement for modern office spaces, apartment buildings, and institutional facilities.

Key Features

• 6-tumbler system ? enhances protection against picking and unauthorized access


• Class 6 durability ? minimum 100,000 cycles, ideal for high-traffic installations


• Corrosion resistance class C ? operates reliably from -20°C to +80°C in challenging environments


• Key security class 6 ? at least 100,000 key combinations to reduce duplication risk


• Solid brass key (2.3 mm thickness) ? provides robust mechanical strength


• Torque resistance ? cylinder withstands up to 15 Nm rotational force


• ITB tested ? certified to PN: EN 1303:2015-07 for quality and compliance

Technical Specifications

• Cylinder Length: 30/55 mm


• Number of Tumblers: 6


• Durability Rating: Class 6 (? 100,000 cycles)


• Corrosion Resistance: Class C (-20°C to +80°C)


• Key Security Rating: Class 6 (? 100,000 combinations)


• Resistance to Torque: 15 Nm


• Key Material: Brass, 2.3 mm thickness


• Certification: PN: EN 1303:2015-07


• Finish: Nickel satin

Applications

Suitable for installation in modern apartments, office buildings, institutional facilities, and commercial door assemblies. Compatible with doors requiring certified cylinder hardware for high-traffic entry points, environments exposed to frequent use, and locations needing robust security and corrosion resistance. Appropriate for projects needing compliance with EN 1303:2015-07 standards and high key protection.

Packaging & Shipping

Units are packed in aesthetic retail boxes including the cylinder, three keys, mounting screw, and maintenance/installation instructions. Declaration of conformity and test certificate are included. Bulk packaging options available for large orders.