Elkuch Train Tunnel Doors

Elkuch train tunnel doors are safety gates for railway tunnel cross-passages, ventilation shafts and emergency escape routes — engineered by Elkuch Bator AG, Liechtenstein, to withstand the specific structural loads that make railway tunnel doors unlike any other industrial door application. Founded in 1963, Elkuch has been the engineering authority on railway tunnel door systems for over 60 years — a company whose entire technical focus is on the conditions that no standard industrial door manufacturer has ever attempted to address.

Railway tunnels generate dynamic alternating pressure loads of up to 10 kPa at several million load changes per year as high-speed trains pass through the tunnel bore. A passenger train travelling at 250 km/h creates a pressure wave that compresses and then rapidly decompresses the air in front of and behind it — every door and gate in the tunnel cross-passages experiences this alternating pressure load every time a train passes, potentially dozens of times per day for decades. The Elkuch railway tunnel safety gate is designed to withstand this load profile — at 10 kPa alternating pressure over millions of load cycles — while also resisting static loads of up to 30 kPa and maintaining a 20+ year service life.