Elevator Door System

The elevator door system is a critical subsystem of the elevator, responsible for ensuring passenger entry and exit safety and shaft isolation. It uses a linkage mechanism between the car door and landing door to seal the entrance and exit during elevator operation, preventing people or objects from falling into the shaft or being sheared. Its main functions include:

• Safety Protection: When the landing door and car door are closed, they form a closed space, ensuring that the elevator only starts when the doors are fully locked.

• Smooth Passage: The automatic door opening and closing mechanism provides efficient entry and exit.

• Anti-Pinch Protection: Integrated devices such as light curtains and safety touch panels automatically open the door leaf when encountering an obstruction.

Core Components

01.

Car Door

Installed at the car entrance, it moves with the car and is driven by the door operator system (such as a permanent magnet synchronous motor or variable frequency drive).

Includes a door blade mechanism to open the landing door.

02.

Landing Door (Hall Door)

Fixed at the shaft entrance of each floor, it has no independent power supply and relies on the car door blade mechanism to open. After closing, the elevator automatically resets via a weight or spring to prevent accidental opening when the elevator is not level.

Supporting Mechanisms

Door Operator System: Controls the door opening and closing speed. Common types include connecting rod drive or synchronous toothed belt drive.

Door Locking System: A mechanical lock hook combined with an electrical safety contact verifies that the door leaf engagement depth is ≥7mm before allowing the elevator to operate.

Anti-Pinch Device

Safety Touch Plate: Mechanically senses the door edge and triggers door opening when pressure is applied.

Light Curtain: Infrared light forms a barrier that stops the door from closing when blocked.

Operating Principle and Safety Mechanism

Door Opening and Closing Process: When the elevator car stops at a landing, the car door blade engages the landing door lock wheel, driving the landing door to open synchronously. When closing the door, the door operator decelerates and closes, and the elevator starts after the door lock is verified.

Rigidity Requirements

Door leaf clearance ≤6mm (passenger elevator) to prevent foreign objects from becoming trapped.

The emergency unlocking device is for professional use only. Fault Protection: If the door lock fails or the electrical switch is short-circuited, the elevator stops immediately, preventing the risk of the elevator running with the door open.

Types and Maintenance Key Points

Common Types: Horizontal sliding doors (such as center-opening doors and side-opening doors) are predominant, while vertical sliding doors are often used in freight elevators.

Regular Maintenance: Clean the tracks for dust and check the door lock function every 15 days; annually inspect the clearance and anti-pinch device sensitivity.

Huzhou Kenai Elevator Technology Co., Ltd. : Your Professional Elevator Door System Supplier in China

We focus on integrated elevator manufacturing. Our smart elevator business integrates leading domestic elevator component companies, brings together high-end technical talents, and is committed to achieving technological innovation and building China's leading elevator industry.

One-stop spare parts supply
Covering core elevator components, including traction machines, wire ropes, door operators, and safety devices, we offer a complete range of spare parts in one place, with ample inventory and fast delivery.

Extensive industry experience
Our team has over 20 years of experience in the elevator industry, familiar with various brand standards and technical requirements, and can provide professional solutions.

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We maintain a large inventory of popular models to shorten lead times, and support rapid delivery of standard parts and OEM customized production.

Strict quality control
From raw materials to finished products, we conduct comprehensive quality inspections, adhering to the principle of safety first. Every product undergoes rigorous testing to ensure stability and safety.

Introduction

The Elevator Door System is the mechanism that controls the opening and closing of elevator doors, ensuring safe, smooth, and reliable passenger access. It includes door operators, sensors, panels, tracks, and safety devices.

Elevator Center Split Permanent Magnet Synchronous Door Machine

Product Specification

Clear door width JJ	600	650	700	750	800	850	900	950	1000	1050	1100	1150	1200	1250	1300	1350	1400
A1L	1180	1280	1380	1480	1580	1680	1780	1880	1980	2080	2180	2280	2380	2480	2580	2680	2780
A2L	175	200	225	250	275	300	325	350	375	400	425	450	475	500	525	550	575
B2L	470	520	570	620	670	720	770	820	870	920	970	1020	1070	1120	1170	1220	1270

Features

Smooth & Quiet Operation

Precision motors and guides minimize noise and vibration.

High Safety Standards

Equipped with sensors, anti-pinch features, and emergency release mechanisms.

Customization Options

Door Type & Configuration
Single-slide, center-opening, or telescopic doors to suit building requirements.

Materials & Finishes
Stainless steel, aluminum, glass, or laminated panels with customizable textures, colors, and coatings.

Drive & Control Systems

Standard or high-speed drives, VVVF control for smooth operation, and energy-saving modes.

Safety Features

Optional sensors, emergency unlocking, automatic re-opening, and fire-rated doors.

Special Requirements

Custom sizes for oversized shafts, cargo elevators, or high-traffic environments.

Quality & Certification

International Compliance:

CE, ISO9001, ISO14001 certified, ensuring global safety and reliability standards.

Premium Materials:

High-strength metals and wear-resistant components for long-term durability.

Rigorous Testing:

Full-cycle testing of open/close speed, load, safety sensors, and emergency features.

FAQ

Q: Can the door system be customized for different elevator types?

A: Yes, options include single-slide, center-opening, telescopic, and high-speed doors for passenger or cargo elevators.

Q: What safety features are included?

A: Sensors, anti-pinch devices, emergency release, and automatic re-opening options ensure maximum passenger safety.

Q: How durable are the door systems?

A: Engineered with premium materials and tested for millions of cycles, requiring minimal maintenance.

Q: Can the doors match the building design?

A: Yes, customizable finishes, colors, textures, and glass options are available to complement architectural aesthetics.

We're professional elevator door system manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap elevator door system from our factory.