Early Warning Signs of Traction Machine Bearing Failure
Early Warning Signs of Traction Machine Bearing Failure In an elevator traction system, the traction machine bearing is one of the key elevator components that ensures the stable operation of the motor and traction sheave. Bearings support rotating parts and reduce friction. Once they become damaged or their performance declines, it can not only affect […]
Problems Caused by Improper Escalator Comb Plate Installation
What Problems Can Be Caused by Improper Installation of Escalator Comb Plates? In an escalator system, the comb plate is located at the entrance and exit, serving as a critical transition component between the steps and the landing platform. By precisely meshing with the step teeth, it ensures that passengers can board and exit the […]
GPSI,GPSII,GPSII NEXWAY,MAXIEZ Summary of Common Elevator Door Motor Models
GPSI,GPSII,GPSII NEXWAY,MAXIEZ Summary of Common Elevator Door Motor Models 1. Applicable Elevator Series GPSI GPSII GPSII NEXWAY MAXIEZ 2. Common Door Motor Model Categories 1) EMB Series (AC / Synchronous Door Motors) EMB-80-4 Voltage: 113V Power: 80W Speed: 600 r/min EMB-48-8 Type: Permanent Magnet Synchronous (SE-BL door motor) Reference Model: YA171B911G EMB-125-4 Type: Three-phase AC Asynchronous […]
Risk Analysis of Insufficient Lubrication of Elevator Wire Ropes
Risk Analysis of Insufficient Lubrication of Elevator Wire Ropes In an elevator traction system, the wire ropes play a critical role in carrying the car’s weight and transmitting power. As one of the key elevator components, wire ropes must maintain proper lubrication during long-term operation to reduce friction, slow down wear, and extend service life. […]
Impact of Traction Sheave Groove Wear on Wire Rope Service Life
Impact of Traction Sheave Groove Wear on Wire Rope Service Life In an elevator traction system, the interaction between the traction sheave and the wire ropes is one of the key factors ensuring safe operation. Among these, the condition of the sheave grooves directly determines the load distribution and wear pattern of the wire ropes. […]
Common Abnormalities in Permanent Magnet Synchronous Traction Machines
Analysis of Common Operating Abnormalities in Permanent Magnet Synchronous Traction Machines With the development of elevator technology, permanent magnet synchronous traction machines (PMSMs) have been widely used in various elevator systems due to their high efficiency, low energy consumption, and compact structure. However, during long-term operation, these machines may still experience various abnormalities that can […]
Magnetic vs Photoelectric Leveling Switches in Elevators
Differences Between Magnetic Leveling Switches and Photoelectric Switches in Elevators In elevator control systems, leveling detection devices are essential for achieving precise floor stopping. Among them, two common types are magnetic leveling switches and photoelectric switches. Although both types of elevator components serve the same purpose—detecting the car position—they differ significantly in working principles, application […]
Light Curtain Installation Angle & Detection Coverage
Impact of Elevator Light Curtain Installation Angle on Detection Coverage In elevator door systems, the elevator light curtain is one of the most important safety components. It forms a detection field at the doorway using multiple infrared beams. When an obstruction is detected, the system prevents the door from closing or reopens it, effectively avoiding […]
How to Identify Wear on Escalator Handrail Surfaces
How to Identify Wear on Escalator Handrail Surfaces In escalator systems, the handrail is not only essential for passenger balance but also a key component synchronized with the equipment’s operation. Since the handrail runs at high speed and is used frequently, surface wear is inevitable. If the wear condition is not properly assessed and addressed […]
Troubleshooting Elevator Door Lock Jamming
Troubleshooting Approach for Elevator Door Lock Mechanical Jamming In elevator door systems, the door lock is one of the core safety components. The elevator can only start running when the door lock is fully engaged and sends a correct signal. Therefore, if the mechanical structure of the door lock becomes jammed, it will not only […]
The Role of Elevator Emergency Power Systems
The Role of Elevator Emergency Power Systems In modern buildings, elevators have become an essential means of vertical transportation. However, in the event of a sudden power outage, elevators may stop operating and trap passengers inside the car, creating potential safety risks. Therefore, the elevator emergency power system has become a critical elevator component for […]
Causes of Escalator Handrail Speed Desynchronization
Causes of Escalator Handrail Speed Desynchronization During escalator operation, the handrail and the steps should run at nearly the same speed. This synchronization is essential for passenger safety and riding comfort. Once a speed mismatch occurs, it not only affects user experience but may also pose potential safety risks. In actual maintenance work, handrail speed […]
