The line is made up from a decoiler at the beginning of the line, which supplies the machine with connecting plates, followed by a feeder which supplies the press the plate that once processed passes to the assembly unit which makes up the grates by joining the plates with the ones that are supplied laterally. A grate extractor conveyor positions them on the grate supporting conveyor. Dimensions of connecting bars: 10x2 to 15x2 mm Dimensions of bearing bars: 20x2 to 50x3 mm