Automatic door opener, automatic hydraulic damper door closer, 90° positioning, silent bedroom door, pneumatic automatic door closer, furniture hardware

Aluminum alloy body: Made of aluminum alloy, corrosion-resistant and durable; High-strength elasticity: Built-in high-strength spring, strong tension and good durability; Adjustable closing speed: Clockwise increases damping, counterclockwise increases closing speed; Simple and lightweight, the door closer automatically closes the end buffer, positioned at any angle less than 100°, and the door closing buffer prevents damage from collisions; Adjustable general-purpose fire door closer for medium-sized door types - left and right swing doors, wood and metal doors, residential and commercial doors, exterior/interior closures, fire doors