Key benefits - Provides reliable automatic closing to prevent slamming, improve security, and reduce wear on door frames and hardware. - Adjustable control lets you set closing speed and tension for smooth operation on a variety of doors. - Stainless steel construction resists daily wear and maintains appearance for long-term use. - 30-minute fire protection rating adds a measured level of safety for interior applications that require short-duration fire resistance. Features and performance - Material: durable stainless steel for corrosion resistance and consistent performance in everyday use. - Mounting: surface-mounted design for straightforward installation on both left- and right-hand doors. - Fully adjustable: spring-loaded adjustable tension allows precise control of closing force and timing to match door weight and user preference. - Capacity: suitable for doors weighing approximately 20–40 kg; actual locking action depends on installation quality, door alignment, and environmental conditions. - Automatic operation: closes doors without manual effort, ensuring doors return to secure position after use. - Fire protection: rated for 30 minutes of fire resistance as a surface-mounted closer. Compatibility and sizing - Designed for standard interior doors within the 20–40 kg weight range. - Works on left- or right-hand doors with surface-mounted hardware; check door thickness and mounting surface before installation. - Tension and closing speed can be tuned to accommodate variations in door size and hinge friction. Why this product stands out - Combines robust stainless steel construction with full adjustability for a balance of durability and precise control. - Simple surface-mounted installation makes it a practical upgrade or replacement for existing interior door closers. - Fire protection rating gives an added layer of safety for doors in common areas or transitional spaces. Typical applications - Apartment or condo entry doors where automatic closing improves security and prevents accidental propping open. - Office or meeting rooms to ensure doors close quietly and consistently after use. - Interior corridor or service doors where a 30-minute fire protection closer is desirable for short-duration containment. Installation notes and considerations - Surface-mounted installation is straightforward but proper alignment and fastening are important to achieve reliable locking action. - Because locking performance is affected by door condition and installation, test and adjust spring tension and closing speed after mounting. - Not a substitute for full fire-rated door assemblies beyond the stated 30-minute protection; follow local codes and manufacturer guidelines when used in fire-rated applications.