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The Spanish mechanical engineering company Tornos Gurutzpe S.A., based in Guipúzcoa, has delivered more than 5,000 machines within half a century. Its horizontal lathe, the "A-2000 4G CNC", is equipped with a novel energy chain solution for long unsupported travels in the swarf areas.
The success story of a now world-renowned manufacturer of horizontally working lathes began 52 years ago, high in the Basque Country mountains. We are talking about the Spanish machine manufacturer Tornos Gurutzpe S.A. The lathe manufacturer Gurutzpe has specialised in custom designs for customers often with many specific requirements. In addition to prismatic lathes, Gurutzpe also manufactures for example four-guide machines that allow extremely flexible applications. As a rule, these are equipped with fixed or hydraulic steady rests and other accessories of the latest generation. Market demand is increasingly tending towards large and long lathes. For instance, Gurutzpe has already built lathes with a length of 20 m. With these dimensions, energy supply systems are of course also needed that can enable the very long travels associated with them. But that was not the only requirement in this application: The global buyers of lathes place great value on 3 things in particular: reliability, rigidity and efficiency. For its horizontal lathe, the "A-2000 4G CNC", Gurutzpe was finally looking for an energy and signal supply solution that could meet these requirements.
For the new "A-2000 4G CNC" horizontal lathe, a first model of which has now been delivered to a customer in the wind energy sector, the Tornos Gurutzpe S.A. opted for two double-run guidelok energy chains from igus. The two opposing energy chains have an unsupported connection to the carriage over a length of 13.5m. The new energy chain solution from igus was specifically developed for long travels up to 50 m unsupported in the swarf area. The guidelok system guides the upper run of the energy chain on pivoting roller holders that fold inwards inside the moving radius of the chain and thus ensure free travel at all times. Guided in a light trough channel, the energy chain initially travels past the roller holders. These then fold in and then after the radius, back out again. Then the upper run is supported again on the roller holders. Due to this novel design, no swarf can settle between the gliding surfaces of the upper and lower run of the energy chain.
