1) The gap at the track joint is 6mm, with a horizontal displacement of no more than 1mm and a height difference of no more than 0.5mm, and the height should have a height from high to low along the direction of the roller movement.

2) The gauge deviation of two parallel tracks shall not exceed 2mm, and the height difference between two parallel track surfaces on the same section (perpendicular to the conveyor centerline section) shall not exceed 1mm.

3) Two parallel tracks should be symmetrically distributed on both sides of the conveyor centerline, with a symmetry tolerance of no more than 1mm.

4) The elevation tolerance along the length of the track shall not exceed 1/1000, and the total length shall not exceed 5mm.

The four tracks overlapped on the head box should be laid after the installation of the head device.

After the installation of the track, it is welded together. The steel rail is welded to the bracket, and one side of the flat steel under the bracket is pressed against the bracket, while the other side is welded firmly to the bracket.