EoW January 2009

wire drawing machines

Drawing of Alumoclad steel wire Aluminium and aluminium alloy conductors are used for the overhead transport of electrical energy. To support the weight of airborne electrical cables hung between two trestles, a steel wire stiffener is necessary in the centre of the cable. The steel wires used for this purpose are aluminium- or zinc-coated. In particular, aluminium-coated steel wire, known as Alumoclad, is more resistant to corrosion and is also preferable to zinc due to its higher conductivity.

GCR Eurodraw makes lines to draw down Alumoclad from the wire rod to the final required diameters, with conductivity and tensile stress that comply with the regulations in force in the different coun- tries of the world. The lines are able to draw the combination aluminium/steel at high speeds, while at the same time maintaining the original ratio between the thickness of the aluminium coating and the steel wire diameter. Die cooling has been optimised for excellent dispersal of the heat produced during the drawing operation, and block cooling is such that the wire temperature is maintained within the required limits after every single drawing block. The die boxes have been expressly designed for this particular production. Alumoclad drawing lines include pay-offs and take-ups that are specific for the spools used by the user in the subsequent production processes. GCR Eurodraw SpA – Italy Fax : +39 02 9354 0452 Email : gcr@gcrgroup.com Website : www.gcrgroup.com

MTS machine to ❍ ❍

draw Alumoclad wire

Wet wire drawing with M+E

completely pre-wired, with incorporated electrical cabinet • enclosed design with interlocked safety guards conforming • to the most stringent safety regulations

M+E has developed a new generation of wet drawing machines designed to eliminate, or significantly reduce, many existing quality and production problems. Operation of the M+E wet wire drawing machines with different wire types has demonstrated remarkable quality and productivity increases compared to traditional machines, while keeping the die wear constant. M+E wet wire drawing machines are particularly noted for drawing brass coated wire (steel cord, saw wire), electrolytic or hot dip galvanised wire, stainless steel and spring wire. The M+E range includes machines with 2, 4 or 6 cones with a maximum of 12, 25 or 33 dies for a finished wire diameter down to minimum 0.08mm (0.0031"). The main wet drawing machine characteristics are: straight wire path, without transfer sheaves • wire drawing only in one direction • high ratio between ring diameter and wire diameter • guaranteed proper wire and dies lubrication during • stringing-up high pressure individual die cleaning system • water cooled final die and final capstan • robust, anti-vibration steel frame • heavy duty bearings and cone shafts • cone shafts specially sealed to prevent bearings damages • compact design with excellent accessibility during • stringing-up minimum wire slip percentage on cones • AC main motor with slip-proof belt transmission • complete accessibility to all components allowing easy • maintenance

Wet drawing machines fromM+E ❍ ❍

M+E wet drawing machines are supplied complete with wire pay-off and traditional or fully automatic spooler for taking up wire on vertical or horizontal axis spools.

M+E Macchine+Engineering – Italy Fax : +39 0341 806002 Email : info@meitaly.it Website : www.meitaly.biz

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EuroWire – January 2009