Cierrapuertas automático, cierrapuertas con resorte de seguridad, bisagra de puerta de cierre ajustable, convierte una puerta batiente en una puerta automática, capacidad de carga 20-40 kg

High Quality - This automatic door closer is made of aluminum alloy, which is oxidation-resistant, wear-resistant, and corrosion-resistant, resulting in a longer service life. In addition, the nylon rollers provide a smoother and quieter operation. Easy Installation - The automatic door closer kit includes all the necessary installation accessories. You simply need to fix the base to the door frame and then install the support rod and gaskets; no modifications are required. (Please be careful during installation) Adjustable Tension - This high-quality automatic door closer features adjustable tension and comes with an adjustable screw, allowing for slow or fast closing. You can choose the closing speed required depending on the closing environment. Improved Design - This door closer stands out from ordinary products. It features a double-spring design for stronger power and suitability for more types and weights of doors. Wide Application - This door closer spring is suitable for doors weighing between 20 and 40 kg and with a width of 1000 mm. This automatic door closing system is suitable for left-hand and right-hand doors, wooden doors, metal doors, residential and commercial doors, and interior/exterior doors. Please note: 1. Due to differences in lighting and screen settings, the product color may vary slightly from the picture. 2. Due to manual measurement, there may be slight errors in the dimensions.