Key Doors are a new series of straight sliding hi-tech automatic systems for very intensive use, with high technical content and silent operation. They offer many features mixed with quality and reliability and are easy to install and program. The traction unit and the electronic control panel in one unit reduce the assembly time. Moreover Key Doors offers solutions with appropriate anti-panic break-out devices allowing easy access to escape routes. The complete range offers solutions for all requirements of size, use and weight.