Principles of Wire Rolling Technology

Karl Fuhr GmbH & Co. KG
Industriestraße 7
32805 Horn-Bad Meinberg
Telefon +49 (0) 52 34 / 84 98 - 0


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Rolling is defined as a forming-technology for "endless" materials using rotating cylindric tools called rolls. The energy required for the forming process can either be provided by pulling the material through the rolling machine or by motorizing the rolls. Therefore the machines are devided into two groups: driven and undriven rolling machines.

The simplest kind of using the rolling-technology is to use two rolls with parallel axis. Machines working according to this principle are called two-high rolling machines. Feed stock can be round or preshaped wire. In most cases the rolls have a plain surface to produce flat wire. If shaped wires are requested, profiled rolls are used.


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In many cases multiple two-high rolling machines are assembled to wire flattening mills. By using at least two machines with horizontal roll axis and one with vertical roll axis, flat wires with tight toleranced width and thickness can be rolled.


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If more sophisticated shapes are required, Fuhr profile rolling machines with four rolls in a plane are used. The rolls are radially adjustable. This type of machine is also called a turks head. The profiled rolls enclose the section all over and form the incoming round or preshaped wire to precise shapes. By using this type of machine almost every shape can be rolled.


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A special type of rolling machine is the so-called universal type turks head. All rolls are radially and axially adjustable. For this reason rectangular and square shapes can be rolled without changing the rolls. The dimensions are reached only by roll adjustment, resulting in low tool costs and high productivity.