Present article is focusing to the control of the coiler devices of an extrusion press of 2500 tons-force used in order to obtain coiled wires of brass and copper. The driving of coiler devices is done by another hydraulic system than the main hydraulic system of extrusion machine, with 2 rotary hydraulic motors for each coiling unit. Maintaining the synchronization between the speed of press’s ram during the pressing and the rotation of coilers during the coiling, in case of hydraulic driving, is a difficult task and the main goal of present paper.
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