This high-quality Surface Mounted Automatic Door Closer is engineered for unilaterally opened doors. Having passed 500,000 mechanical life test cycles, it features advanced time delay and buffering functions. With adjustable strength and speed, it provides a safe and durable solution for wooden, steel, and fire doors. It is widely used in residential anti-theft doors, hotel rooms, meeting rooms, and hospitals.

• Buffering Function: Resistance generated beyond 65° to prevent wall impact.
• Time Delay: Keeps door still between 65°~180° for easier access.
• Adjustable Speed: Closing speed can be set between 3 to 60+ seconds.
• Universal Installation: Supports vertical, parallel, and sliding rail styles.
• Application Scope: Width: 50-1500mm; Height: 2000-2400mm; Weight: 15-150KG.