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Single-Minded Modular Machining Lines


EMAG LLC (Farmington Hills, MI) offers two machines, the VLC 250 WF and the VSC 400 WF, that can be used to turn and hob in combination. According to the company, there is a quality advantage to such combination machines.


“The advantage,” said Joerg Lohm- ann, Deputy Sales Director, Koepfer GmbH a member of the EMAG Group (Salach, Germany), “is that the work- piece doesn´t have to be unclamped between the different processes.” Despite this advantage, EMAG is phasing out this product family, except, said Lohmann, “for [support- ing] customers that already have these machines. Some of them, however, are even trending towards our new gear manufacturing systems, for instance the combination of a VL2, a VL2, a VLC200H and a VLC100D.” In combination these machines become a modular multipurpose machining line. They are still, however, single-purpose machines. And the reason, according to Lohmann, is that time is money.


“EMAG has chosen to develop its gear manufacturing system with single technology machines,” he said, “to offer an alternative to [combination machines]. The hourly production cost with single technology machines is simply lower compared to multiprocess machines. And in a modular system of these machines one process follows immediately after the other so the value stream is optimized. Throughput times are reduced dramatically by means of avoiding workpiece transportation.” EMAG has shown gear manufactur- ing systems that perform not just the basic metal removal operations but which include welding and workpiece hardening as well.


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“We are developing our modular construction system


further,” said Lohmann, “and we always implement the latest technologies on our vertical platform. The EMAG group offers the whole process chain for green and hard


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June 2014 | ManufacturingEngineeringMedia.com 57


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