Door Closer is a mechanical device that closes a door, in general after someone opens it, or after it was automatically opened. Choosing a door closer can involve the consideration of a variety of criteria. In addition to the closer's performance in fire situations, other criteria may include resistance to opening forces (for use by disabled or infirm) as well as health, safety, durability, risk of vandalism/ligature and aesthetics.
Main lever supplied with the door floor springs is of M.S, Steel which gives long life to the mechanism. The floor spring ocks at 90° when opened and remains opened till it is pushed back to close.
One control valve screw is provided to adjust the speed of the floor spring under the top plate.
We glazing all about door and window roller assemblies, including sliding door rollers for vehicles. Combination with metal / plastic roller and housing. With 35 years manufacturing experience, we have made both OEM and ODM rollers for many different industrial application. Our ability in designing and making automatic assembly machines help us to eliminate high labor costs and possible error from manual production.