Our heavy-duty steel access systems are engineered for interior or exterior openings, vehicle access, and harsh, high windload environments. Designed to operate in pressures up to 20″ W.G. with a UL Certified Fire Rating (1.5 HRS), these systems offer low maintenance and customizable control systems, including Vent-on-Demand (VOD) capabilities. Built with heavy-duty steel construction and options for spring or counterweight balancing, they ensure durability and reliability. Additional features like digital limits, battery backup, and motion detectors enhance functionality, tailored to specific needs. Ideal for settings requiring certified engineering and custom sizing, our systems provide secure, efficient access solutions in the toughest conditions.