EoW January 2010

Extruding – machinery & equipment Continuous extrusion of copper bus bar Beijing Holland’s continuous copper extrusion machine model, TLJ400 will fabricate wide cross section copper bus bar. With one size (20mm diameter) rod feeding, the machine extrudes copper bus bar of 170mm width and 2,000mm 2 cross-section area. The end products are widely used as large copper conductors, and semi-products of copper strip and copper foil.

Portal machine

The Sampsistemi division of SAMP SpA has a new generation of self-traversing portal payoffs and take-ups to complete the range of powerful machines for cable extrusion. Multiflex-25 is a multi-material extrusion screw. The new portal machine’s maxi- mum reel flange diameter is 5,000mm for a maximum weight of 60 tons. Each model has a very wide reel range; for example, a 3,000mm (20t) model loads reels with flange diameters between 900mm and 3,000mm and it runs at 300m per minute. Thanks to the wide bobbin range, customers will need only a limited type and number of spare parts. All machines are engineered to increase the production efficiency and don’t have gearboxes, chains or belts for the power transmission. The SAMP payoffs and take-ups only use AC motors for accuracy of the machine movements. In addition, the set-up time is said to be much lower than the standard market average. The machine is extremely flexible due to the beam telescopic device and a new changeover system. SAMP recently supplied Nexans with eighteen of these machines. SAMP SpA – Italy Fax : +39 051 370860 Email : info@sampspa.com Website : www.sampspa.com

Copper extrusion machine TLJ400 ▲ ▲

Testing and metal flow analyses have ascertained the optimum materials for die and tooling, and the precise flow patch design to withstand huge friction and pressure during extrusion. The feeding rod is not heated before extrusion, making the process and operation easy.

Offering the convenience of easily sourced 20mm rod, continuous production, different sizes of product, less scrap and easy operation, the TLJ400 machine has become popular with copper bus bar producers, taking the place of traditional hydraulic extrusion presses in some areas. Over 100 machines have been installed worldwide and a larger machine is in development. Continuous extrusion technology is also suitable for the production of aluminium cladding steel wires and aluminium cladding cables. Beijing Holland Tech Co Ltd – China Fax : +86 10 6803 2878 Email : webmaster@bjholland.com Website : www.bjholland.com

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EuroWire – January 2010