High Quality Overhead Mounted Slide Back Automatic Hold Open Fire Rated Door Closer

High Quality Overhead Mounted Slide Back Automatic Hold Open Fire Rated Door Closer. Durable Aluminum Alloy: Crafted from lightweight and durable Aluminum Alloy for long-term reliability. High Capacity Support: Designed for doors up to 1000mm wide and weighing 65-85kg. Rigorous Testing Standard: Passed EN1154, UL228, and QBT2698 standards with over 500,000 tested cycles. Adjustable Speed Control: Features adjustable sweeping and latching speeds for various door types. Comprehensive Function Set: Includes stop, fixed, delay, adjustable, and buffered functions. Global Safety Certification: Certified by CE, UDEM, Intertek, and CCC for global safety compliance. Expert R&D Leadership: R&D team led by well-known door closer experts ensuring innovation. Flexible Customization: Offers full, minor, and flexible customization from samples or designs.