Power Outages Aren’t Dangerous — What’s Truly Dangerous Is an Elevator Without an ARD
Power cuts aren’t the danger—elevators without an ARD are. In modern high-rise buildings, elevators have become essential to daily life. However, when a sudden power outage, electrical failure, or internal control cabinet fault occurs, the elevator may stop between floors — trapping passengers inside. Such incidents are not uncommon. To prevent danger and panic, the […]
Elevator Button Aging: Failure Symptoms & Replacement Guide
Elevator Button Aging: Failure Symptoms & Replacement Guide In an elevator system, the elevator button is the component with the highest usage frequency. Whether it is the hall call button or the car operating panel (COP) button, it is pressed hundreds of times every day. Combined with environmental humidity, dust accumulation, oxidation at contact points, […]
How to Determine Whether an Elevator Traction Sheave Needs to Be Replaced
How to know if an elevator traction sheave needs replacement In an elevator system, the traction sheave is a core component that determines the stability and safety of the car’s operation. Through friction with the wire ropes, it drives the elevator up and down. Therefore, after long-term operation, the sheave will inevitably experience wear, deformation, […]
Causes of Elevator Door Lock Contact Failure and Effective Solutions
Causes and Solutions for Elevator Door Lock Contact Failure In all elevator safety protections, the door lock system is one of the most critical defense lines. It directly determines whether the elevator can start and whether passengers can ride safely under the correct conditions. However, after many years of operation, door lock contact failure becomes […]
How to Choose the Right Elevator Door Operator System Components?
How to Choose the Right Elevator Door Operator System Components? The elevator door operator system is the most frequently moving, most easily worn, and most experience-defining part of the entire elevator operation. The smoothness of door opening and closing not only affects building operation efficiency but is also directly related to passenger safety. Therefore, choosing […]
Escalator Comb Plate Wear and Selection Tips
Escalator Comb Plate Wear and Selection Tips In an automatic escalator system, the comb plate is a seemingly simple yet extremely critical safety component. Located at the entrance and exit of an escalator, it meshes with the step treads like a “comb,” guiding passengers’ footsteps while preventing foreign objects from being drawn into the mechanical […]
Are Elevator Button Brands and Models Not Interchangeable, Making Replacement Difficult?
Are different elevator button brands hard to replace? In elevator maintenance and modernization projects, elevator buttons are among the components that fail most frequently and require the most frequent replacement. However, many maintenance engineers encounter the same problem: elevator button models from different brands are completely incompatible, making replacement extremely difficult! There are many brands […]
Main Causes of Elevator Light Curtain Failure and Selection Tips
Main Causes of Elevator Light Curtain Failure and Selection Tips The elevator light curtain is one of the most important modern safety anti-clamping devices. It provides real-time detection when passengers enter and exit the cabin, preventing pinching accidents. However, after long-term use, it is not uncommon for the light curtain to fail. Once a light […]
Common Elevator Traction Sheave Models
Common Elevator Traction Sheave Models In the entire operating system of an elevator, the traction sheave is one of the most critical components in power transmission. It determines whether the elevator can run smoothly, steadily, and safely. The friction between the traction sheave and the wire rope generates traction force, enabling the car and counterweight […]
What Are the Common Brake Voltages Used in Escalators?
What Are the Common Brake Voltages Used in Escalators? In the safety mechanism of an escalator’s operating system, the escalator brake is one of the most critical safety components. Whether it is a sudden power failure, overspeed operation, chain slack, or abnormal vibration, the brake must intervene instantly to bring the escalator to a stable […]
What Are the Common Failures of Escalator Inspection Boxes?
What Are the Common Failures of Escalator Inspection Boxes? In an escalator system, the inspection box is one of the most frequently used control components by maintenance personnel. It can switch inspection modes, adjust direction, and perform low-speed debugging. It is a core tool for escalator maintenance and troubleshooting. Once the inspection box malfunctions, the […]
Common Faults Found in Elevator Door Operator Boxes
Common Faults Found in Elevator Door Operator Boxes During elevator operation, the elevator door operator box is the core component responsible for controlling the door-opening and door-closing actions. It directly affects elevator safety, stability, and passenger experience. Since the door operator system is a high-frequency operating component, various faults will inevitably occur over time. As […]
