Single or double hinged leaf.

Hinged metal door with electro-zinc coated steel frame (1,5 mm thickness), cold-formed and construction by welding. An intumescent seal is embedded in the frame, which ensures the necessary tightness against flames and hot gases. The leaf, with a door stop edge in all three sides of the frame, is made of two electro-zinc coated steel panels, ranging from 1 to 1,5 mm thick, and contains thermal insulating and acoustic materials according to Schröders constructive system. Lateral and superior fixed panels can be attached if its composition is similar to the leaf. The pivoting behavior of the door is ensured by two welded hinges of the system (per leaf), with a 16 mm diameter solid steel pin and movement on thrust ball bearings, allowing an opening up to 180º.