Thumb turn profile cylinder, also called single-open cyliner is equipped with a thumb turn and key, allowing for internal operation via the thumb turn and external operation via the key. Constructed from high-quality solid brass, this cylinder has fire resistance performance and has successfully passed a 60-minute fire rating test in compliance with European standards.
The brass cylinder with thumb turn is compliant with European standard EN1303 and the size conforms to DIN18252. The cylinder profile measures 33*17*10mm and is designed for use inside a mortise door lock, operating the deadbolt to secure or release the door.
The euro profile cylinder is widely used in construction projects in public. For example hospital, school, airport and so on. We can also offer you a mortise lock that is compatible with the profile cylinder and meets fire rated requirements.