Core Technology Upgrade of Elevator Safety Gear – Dual Braking System Fortifies the "Lifeline" of Vertical Mobility

As the "last line of defense" for emergency braking of elevators, the technology of safety gears has recently achieved a breakthrough. The dual-braking safety gears, jointly developed by leading domestic elevator component enterprises and universities, have been put into mass production. Their braking response speed is 40% faster than that of traditional products, and their reliability under extreme working conditions has been certified by authoritative industry institutions.​

With the surge in the number of high-rise buildings, the safety of elevator operation has attracted widespread attention. As a key component that forcibly stops the elevator car when the elevator is overspeeding or out of control, the performance of the safety gear is directly related to the lives of passengers. Traditional safety gears mostly adopt a single mechanical braking structure, which is prone to braking delay under harsh environments such as low temperature and high humidity. The newly developed dual-braking safety gear innovatively integrates mechanical braking and electromagnetic auxiliary braking technology: when the elevator speed exceeds the safety threshold, the mechanical caliper is triggered first, and at the same time, the electromagnetic device applies braking force synchronously. This dual protection ensures that the car stops stably within 0.5 seconds, avoiding secondary injuries caused by braking impact.​

Experts from the China Elevator Association stated that this technology has passed 1,200 simulated failure tests conducted by the National Elevator Quality Supervision and Inspection Center, and can work stably in the temperature range of -30℃ to 60℃. Currently, it has been applied in the elevator renovation projects of super high-rise residential buildings and commercial complexes in cities such as Beijing and Shanghai. In the next step, the industry will promote the inclusion of dual-braking technology in the new national standard for elevator safety gears to further improve the safety protection level of elevators.