A pivoting door between the dining room and kitchen is one of the most charming and practical features of vintage homes! This old-fashioned double acting floor mounted hinge allows your door to swing up to 90 degrees in each direction, and stop open at 85 degrees. The spring tension is easily adjusted to regulate the closing speed. A top pivot and a pair of solid brass plates, designed to cover the hinge cut-out at the base of your door, are included. 1. The weight of super heavy electric floor spring door is =1000kg, the door width is =3000mm, and the door height is not limited 2. Suitable for installing all kinds of heavy-duty framed doors and large metal doors 3. Multifunctional controller, LED screen display, more convenient debugging 4. Ultra-long-distance remote control, up to 200m without obstruction, can be controlled by APP 5. Buried design, low noise, corrosion resistance
link:https://www.heinda-cn.com/floor-spring/heavy-duty-floor-spring/1000kg-floor-door-hinge.html