Automatic spring-loaded door closer with locking function, for interior and exterior doors, 40-60kg, Silver

Material: The hydraulic door closer is made of high-quality aluminum alloy, offering good toughness, stable quality, and excellent mechanical properties. Hold-open function: The door can be held open when opened to ≥ 90°, and it closes automatically when closed to 90°. Suitable for locations requiring ventilation and handling of large objects. Applicable to: Suitable for doors weighing approximately 40-60 kg and with a width limited to 1100 mm. Adjustable speed: The closing and locking speed of the door can be controlled independently. Turn the valve clockwise to decrease the speed and counterclockwise to increase the speed. The speed control valve can only be adjusted with precision. Widely used: Suitable for residential and commercial doors, fire doors, hotels, apartments, and warehouses.