Sliding Door systems operate on a track system, which is designed to provide years of smooth, trouble-free service. This track system, combined with permanently lubricated trolleys provides virtually silent operation and minimal resistance. The system requires the least headroom of any industrial door system available. Pre-mounted components minimize field assembly time and reduce the possibility of installation errors. A microprocessor control system that constantly monitors the door operation and position, ensuring maximum control and efficiency. Permanently lubricated components and self-diagnostic electronics virtually eliminate the maintenance that is required on most door systems available today.