product description:The concealed door closer is a fixed-type aerial overhead closer. The automatic hydraulic door closer is made of high-quality aluminum. The hydraulic principle keeps your door closed. The automatic hydraulic door closer keeps you safe and healthy.Features:The hydraulic design is quiet and stable enough.Two speed adjustments help you control the door closing speed and protect the door lock.Suitable for all doors with a weight between 40-60kg.Suitable for warehouse doors, fire doors, gates, office doors, wooden doors, glass doors and various metal doors and other materials of different materials.Product specificationsColor: silver whiteMaximum load: 40-60KGClosed door speed: 90°-15°Locking speed: 0-15°Speed control: two-stage speed controlScope of application: wooden doors can be perforatednoteInstalling a door near a light door may cause problems with opening the door. If you have a child's house (under 6 years old) and a weak person, please consider this issue.If the door and door frame are not on the same plane and exceed 5 cm / 1.97 inches, you will need to purchase parallel mountings (we do not provide packaging)Make sure that the weight and width of your door meet the requirements of our requirements, otherwise it may cause unexpected problems such as difficulty opening the door (if installed on a very light door) or not working properly (installed on a heavy door) )Before the door closer is installed, the shaft of the door closer cannot be rotated by 180°, otherwise the door closer will be damaged and it will not be used.SuggestThe closing speed is 180°-15°, but it should be slowed down as much as possible at 15°-0°. The door can be fully sealed to prevent the door speed from being too fast, causing noise and door lock damage. please contact us if you have any problem.Arrival time 10 t
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