Schliess- und Sicherungssysteme GmbH

Schliess- und Sicherungssysteme GmbH is a German manufacturer of locking and securing systems specializing in components and system solutions for the rail vehicle industry. Headquartered in Mühlhausen, Thuringia, the company develops and produces high-quality locomotive doors, carbody components, and safety systems for national and international railway operators and train manufacturers. Operating as a medium-sized manufacturer with around 200 employees, the firm provides end-to-end engineering services including design engineering, prototype construction, testing, and patent development. In addition to railway equipment, Schliess- und Sicherungssysteme GmbH delivers custom locking solutions for the refrigeration and air conditioning industry. The enterprise serves global rail vehicle manufacturers and transport operators with certified quality management standards and innovative security technology. Backed by extensive manufacturing capabilities, the company handles projects from initial technical concept through prototype construction to series production. Through its international presence and specialized subsidiaries, Schliess- und Sicherungssysteme GmbH ensures reliable supply chain support for modern rail transport systems.