LOB 90/50 Mortise Lever Lock Yellow Zinc 200,000 Cycles Universal Left/Right

Product Overview

The LOB 90/50 mortise lever lock with yellow zinc finish is designed for both exterior and interior doors in residential buildings, schools, offices, and other institutional settings. Suitable for doors weighing up to 100 kg, its universal design allows for left or right-hand installation. Laboratory-tested durability ensures performance up to 200,000 operating cycles, providing assurance for high-traffic environments and professional procurement scenarios.

The principal differentiator of this lock is its certified endurance rating of 200,000 cycles, which minimizes replacement intervals and maintenance cost in facilities with frequent door use. This makes it particularly well-suited for bulk procurement in public sector projects and institutional property management where longevity and compatibility across door types are key requirements.

Key Features

• Universal left/right configuration ? fits L or R opening doors without additional adaptors


• Durability rating 200,000 cycles ? proven in laboratory tests for extended service life


• Supports doors up to 100 kg ? accommodates heavy duty internal and external doors


• Yellow zinc plating ? provides enhanced corrosion resistance in varied environments


• Residential and institutional compatibility ? suitable for homes, schools, offices, and public buildings


• Includes mounting screws and installation guide ? streamlines onsite fitting


• Polish-made ? local manufacturing supports quality assurance in regional projects

Technical Specifications

• Lock Type: Mortise lever lock


• Door Weight Limit: 100 kg


• Endurance Test: 200,000 cycles


• Finish: Yellow zinc (ocynk żółty)


• Configuration: Universal (left/right)


• Country of Origin: Poland


• Packaging: Blister pack

Applications

Used on internal and external doors in residential houses, schools, offices, public institutions, and commercial properties. Compatible with heavy-duty doors up to 100 kg where frequent access and robust locking solutions are required. Ideal for bulk installation in institutional renovations or new construction.

Packaging & Shipping

Delivered in blister packaging with mounting screws and installation instructions included. Bulk purchase options available for large projects.