Manufacturing Technology

How expanded metal is produced

"The metal is inserted on coils or in the form of plates into the rear of the machine.
Each machine is fitted with a special blade which defines the mesh width.
The machines are programmed with the necessary parameters and manually controlled by our qualified employees.
During the elongation process the raw metal sheet is reformed through systematic slitting and predefined stretching. The metal is either formed into rolls or cut to defined sizes."

Planarity

The expanded metal mesh sheets are considered to be planar if, when placed on a flat surface with the curvature facing upwards, the greatest distance between the sheet and the flat surface does not exceed 20mm (over a width of 1000mm). In the case of heat-resistant sheets a distance of 40mm is allowed.

Curvature

The expanded metal mesh sheets are considered to be straight along the longitudinal edge if the curvature midpoint of a sheet with a metal thickness of up to 3mm shows a deviation of not more than 1.5% of the length of the straight line. For sheets with a thickness of 3mm or more the deviance may not exceed 2% of the length of the straight line.