Landing Door Lock

Overview

The landing door lock is the mechanical and electrical device that holds each landing door closed and proves it is locked before the car can move. It is the primary safety device in the door circuit, and it is the part an inspector looks at first. One Elevator supplies complete lock assemblies, lock contacts and the release levers used across most elevator door systems.

Applications

Locks are replaced on passenger lifts, hospital beds lifts and freight elevators in residential blocks, office towers, hotels and hospitals, and are made to fit OTIS, KONE, Schindler, Mitsubishi, ThyssenKrupp and Fujitec equipment. Contact wear and broken return springs are the two faults that take a lift out of service fastest. Because a lock is a certified safety component, most operators replace the complete assembly rather than rebuild it. Lock types can vary between landings on the same job, so we recommend checking one lock at each floor before ordering a batch.

Types and Range

• Complete landing door lock assemblies
• Lock contacts and micro-switches with silver contacts
• Lock rollers, release levers and return springs
• Lock cams, strikers and mounting plates
• Emergency release keys and triangle keys
• Lock covers, seals and fixing hardware

Each lock is supplied with the matching contact block already fitted.

Selection Guide

Confirm three things before ordering: the lock type and mounting pattern, the contact rating and configuration, and the door opening direction. Never bypass or adjust a lock outside the manufacturer’s limits — it is the primary safety device in the door circuit. After fitting, the locking engagement depth and the electrical proofing are both checked and recorded. All locks are produced to EN 81-20 requirements and every contact is tested for continuity and insulation.

Ordering and Lead Time

Stock sizes dispatch in 7-10 working days; less common types take 2-3 weeks. Send your model number or a photo of the lock plate and our team will verify fitment before you order.

Frequently asked questions

How do I order the correct landing door lock?

Give us the model number, or a photo of the lock plate with the mounting dimensions. Left and right hand versions are not interchangeable.

When should a landing door lock be replaced?

When the hook or roller is worn, the contacts are pitted, or the lock no longer holds the door closed under test. It is a safety part, not a wear item.

Can you cross-reference an obsolete lock?

Often, yes. Send the old part number and a photo and we will check it against current and discontinued patterns before you order.