The ASSA ABLOY SL500 Telescopic is an automatic telescopic door that sets a new standard in telescopic performance by providing superior support and stability. By utilizing an exclusive “door on door" design, the ASSA ABLOY SL500 telescopic automatic sliding door has an innovative design that improves upon inferior suspended track systems. It places the door weight on the structural portion of the automatic door header via two structural boxes with integrated replaceable aluminum tracks.








