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The tool previously ran on a modern 270-ton hydraulic machine achieving a 46 second cycle time. There were serious quality issues relating to gas being trapped within the tools cavity.\u00a0 Despite the addition of vents, surface defects resulting from burning were at an unacceptable level.\u00a0 IVM\u2019s Managing Director, Ian Davidson commented,<\/p>\n
\u201cPeople are surprised when we tell them that we chose All-Electric technology primarily to increase productivity and improve the quality of an existing component.\u00a0 We all know that these machines use less energy, are cleaner, quieter and have a much smaller cooling requirement than hydraulic models.\u00a0 These are all contributing factors, but we wouldn\u2019t have made this decision based on these benefits alone.<\/em><\/p>\n \u201cWe were confident that the proven advantages of the NOVA eT could help us to resolve both the current quality concern, and reduce the cycle time.\u00a0 Having now eliminated the gas burning issue and also significantly reduced cycle times, we were right to be optimistic.\u201d<\/em><\/p>\n \u201cVenting is no longer an issue, as we are able to commence material injection when the tool faces are exactly 0.5mm apart.\u00a0 This ability to utilize \u2018pre-injection\u2019 has both resolved the quality issue and contributed towards the cycle time improvement.<\/em><\/p>\n \u201cMost of the cycle time reduction directly relates to the machine\u2019s technological advantages.\u00a0 For example, the opening stroke has been reduced by a second, the machine \u2018relaxing\u2019 the toggles towards the end of the cooling phase.\u00a0 This means that acceleration is virtually instantaneous once mold opening commences.<\/em><\/p>\n \u201cComponent ejection now commences once mold open is at 60mm.\u00a0 This ability to \u2018eject on the fly\u2019 also means that there is no dwell between mold fully open and mold close commencing.\u201d<\/em><\/p>\n \u201cIn summary, the NOVA eT is a \u2018fast\u2019 machine when you compare it to a servo-hydraulic equivalent.\u00a0 All movements have a higher acceleration and deceleration curve, which when coupled with the ability to overlap all phases of the mold cycle, equates to greater productivity.<\/em><\/p>\n \u201cAll-Electric technology comes with a price premium, only some of which can be justified by energy savings.\u00a0 Shaving 20% off a cycle time is the real benefit to us, as higher productivity means lower part cost and a quicker ROI.\u201d<\/em><\/p>\n Negri Bossi Group CEO, Craig Ward, recently attended an Open Day at the UK\u2019s Rugby facility.\u00a0 His presentation made a very compelling argument for investment in all-electric technology when machines are below 250 tonnes, citing \u2018life costs\u2019 and productivity levels as paramount to European manufacturing facilities and their related overheads.<\/p>\n He went on to postulate that most costings\/justifications for the higher levels of investment required were not sophisticated enough and therefore accurate enough to give the correct outcome when deciding between hydraulic or all-electric technology.\u00a0 When done correctly, the conclusion should invariably be, that in the European market, there was no longer a place for a high-end, sub-250-ton hydraulic machine.\u00a0 Investing in machines such as the NOVA eT should future proof the purchasing decision, as the argument will only become more compelling during the service life of the equipment.<\/p>\n The NOVA eT range is available in tonnages between 50 and 350 ton and with a choice of injection units.\u00a0 A 130-ton machine is currently available to view at Negri Bossi UK\u2019s Rugby showroom.<\/p>\n","protected":false},"excerpt":{"rendered":" Less than six months after the delivery of their first NOVA eT All-Electric machine, County Durham based IVM Ltd … Continue reading NOVA eT Technology Improves Process and Productivity for IVM<\/span> ![\"Screenshot](\"https:\/\/www.negribossi.com\/wp-content\/uploads\/cycle-breakdown-and-cycle-time-screenshot.jpg\")