Automatic Hydraulic Door Closer with Stop Device, Adjustable Spring Door Closer, Buffer Closed for Commercial and Residential Use 20-40 kg Door (Black)

General description The Automatic Hydraulic Door Closer is designed for both commercial and residential use, accommodating doors weighing between 20-40 kg. This adjustable spring door closer features a stop device that allows the door to remain open at any angle between 90° and 180°, eliminating the need for external force or door stops. It is ideal for maintaining ventilation or facilitating the movement of goods. Technical specifications Weight capacity: 20-40 kg Door width compatibility: 750-850 mm Material: High-quality aluminum alloy Closing speed control: Two independent valves for closing and locking speed Installation Comes with a detailed installation manual Includes an installation video for easy setup Simple and smooth installation process Usage Automatically closes the door when pulled within 90° Can be used for right and left opening doors Suitable for various door types: wooden, metal, residential, and commercial Applicable for exterior and interior doors, including fire doors, hotels, condominiums, apartments, and warehouses Other information Manufactured according to European production standards Passed CE, UL, 3C certification and fire test