Good Quality Hydraulic Automatic Sliding Back Door Controller Exposed Surface Mounted Door Closer

Good Quality Hydraulic Automatic Sliding Back Door Controller Exposed Surface Mounted Door Closer. 500,000 Cycles Durability: Tested for over 500,000 cycles to ensure reliability in high-traffic areas. Aluminum Alloy Construction: Lightweight and durable aluminum alloy body for long-term use. Wide Door Compatibility: Supports doors up to 950mm width and 85kg weight. Multiple Installation Options: Supports standard, top jamb, parallel, sliding, and concealed installations. CE & CCC Certified: Meets global safety standards including EN1154, UL228, and QBT2698. Adjustable Functions: Features stop, fixed, delay, adjustable, and buffered closing actions. Expert-Led R&D: Developed by a team guided by well-known door closer experts. Full Customization Available: Offers customization from samples, designs, and full customization options.