Manufacturer page.

The ASSA ABLOY RR5000 high-performance door is suitable for all types of buildings, with regards to both function and appearance. High flexibility makes it possible to install this door in almost every type of building. The door rolls up on a roll above the lintel when opened, not needing excessive space around the door opening and leaving the door opening completely free. The door is made of insulated panels. The panels are designed without a thermal bridge to provide minimal thermal transmittance, which reduces energy costs. The surface is made of micro profiling stucco steel. There is top, bottom and side seals and seals between door panels. The standard side frame is made of galvanized steel with ethylene-propylene-diene rubber (EPDM) insulation and a sliding guide. The balancing system balances the door by applying a force nearly equal to the weight of the door blade if the door is half-opened. This allows the door blade to be moved up and down, and to stay in a half opening position if the emergency lever is used. The balancing system (springs in combination with belts) supports heavy forces. In case of a spring or belt break, its counterforce is lost. For that case, the drive system is designed to take the load of the door blade weight. The door has 3 primary parts: 1) Top roll with door blade 2) Side frames with integrated balancing system 3) Electrical control system with drive system.