QE4S Shielded Intelligent panic bar （emergency escape device）

The QE4S  Shielded Intelligent panic bar （emergency escape device）, designed by Dongmu, is a high-reliability solution tailored for subway stations’ emergency doors and end doors. Engineered for rapid evacuation and secure daily locking, it supports dual-side unlocking: passengers can open doors by pressing the lever from the track side, while staff use a dedicated key from the platform side—ensuring quick response in emergencies.
Featuring a 2-level locking system and overload protection, the device guarantees stable performance: unlocking force ≤67N, lever rotation angle 45±5°, and key rotation angle 80±5°, with automatic re-locking after closing. Crafted from premium materials (aluminum alloy lever with 35μm fluorocarbon coating, 304 stainless steel components), it passes 24-hour salt spray testing and offers 10+ years of corrosion resistance, adapting to harsh environments (-40~85℃, ≤95% humidity).
Modular and recessed installation enables on-site debugging without door removal, reducing maintenance costs. Compliant with EN1125-2008, GB/T standards, and ROHS, it meets global safety requirements—withstand 2000MPa wind pressure, 100,000-cycle structural durability, and 50,000 opening/closing tests.
Ideal for subway infrastructure projects, this device balances safety, convenience, and longevity. Trust Dongmu’s QE Series to safeguard evacuation routes and enhance public security.
panic bar （emergency escape device）, intelligent emergency lock, subway emergency door system, high-security escape lock, modular emergency unlocking device, ROHS-compliant emergency hardware, EN1125-2008 certified escape system