General description The Automatic Hydraulic Door Closer is designed for both commercial and residential use, accommodating doors weighing between 20-40kg. This versatile door closer allows you to keep doors open at any angle from 90° to 180°, eliminating the need for external force or door stoppers. It automatically closes the door silently when pulled to 90°, making it an ideal choice for well-ventilated spaces or frequent movement of goods. Technical specifications Weight capacity: 20-40kg Door width compatibility: 750-850mm Material: High-quality aluminum alloy Closing speed control: 2 independent valves for customizable speed Installation Comes with detailed installation instructions Includes an installation video for easy setup Designed for smooth and straightforward installation Usage Suitable for right and left opening doors Compatible with wooden and metal doors Ideal for residential and commercial applications, including fire doors, hotels, condominiums, apartments, and