Invisible Door Closer — Round Concealed Automatic Hidden Buffer Hydraulic (Rotundity) A compact, round hydraulic door closer designed to be fully concealed inside the door or frame. The Invisible Door Closer delivers automatic, controlled closing with a hidden buffer for soft, quiet operation. Its rotund (round) profile allows discreet installation where a visible surfacemounted closer is not desired. Key benefits Hidden, inconspicuous design: The closer sits inside the door or frame, preserving the door's appearance and eliminating exposed hardware. Smooth, reliable closing: Hydraulic damping provides controlled, predictable closing speed to prevent slamming and reduce wear on hinges and frames. Softbuffered stop: Builtin hidden buffer cushions the final seconds of closing for quieter, safer operation and gentler contact with the latch or jamb. Automatic operation: Closes the door automatically after opening, improving convenience, energy efficiency, and security without manual effort. Low maintenance: Sealed hydraulic mechanism and robust construction minimize service needs and maintain consistent performance over time. Key attributes Form factor: Round (rotund) concealed unit designed for recessed installation; suitable when a concealed solution is required. Functionality: Automatic closing with hydraulic damping and integrated hidden buffer for a soft close. Compatibility: Intended for concealed installation within compatible doors or frames that can accept a round, recessed closer. Works where a concealed hydraulic closer is desired to or hide surfacemounted hardware. Materials and build: Engineered for durability with precision mechanical and hydraulic components to ensure longterm, stable operation. Performance highlights: Smooth, adjustable hydraulic closing action; buffered final closure to prevent slams; reliable automatic retraction after opening. Typical applications Interior commercial offices and meeting rooms where a clean, uninterrupted door appearance is important and noise reduction is required. end residential interiors, hotel rooms, and hospitality areas where concealed hardware preserves style while delivering reliable, soft closing. Retail, medical, and institutional doors where automatic, quiet closing improves safety, privacy, and energy control without visible mechanisms. Installation and use notes Designed for recessed installation into a round opening in the door or frame. Professional or skilled installation is recommended to ensure correct alignment and hydraulic performance. The closer provides automatic closing and a buffered stop; adjustment features (when present) should be set according to door weight and desired closing speed. Suitable as a concealed alternative to surfacemounted closers where appearance, quiet operation, and a soft stop are priorities. What makes this product unique Combines a round, fully concealed form (rotundity) with hydraulic damping and an integrated hidden buffer, offering a refined solution for applications that demand both aesthetics and dependable automatic closing performance. Choose this Invisible Round Concealed Automatic Hidden Buffer Hydraulic closer when you want automatic, quiet, and concealed door control without visible hardware, while retaining reliable hydraulic performance and a soft, buffered close.