TECHNOLOGY | PACKAGING


BluePower servo drive. At K2019, PP buckets with a capacity of 20 litres each were injected in two cavities and decorated by IML. The shot weight was about 1,500 g with a cycle time of just 14 s. The available speed option ensured fast injection speeds (up to 700 mm/s depending on the injection unit) as well as fast clamping movements. “We thus offer our customers an additional option to improve their opening and closing movements of the GX machine, especially for large packaging opening widths of more than 350 mm,” adds Golz. The dry cycle time is shortened by almost half a


Above: At K2019, 20 litre buckets with an IML decor were produced on the new GX 1100. The speed option ensures fast injection speeds


high-quality plastic products despite fluctuating raw material quality. This paves the way for a far more widespread use of recycled materials. On top of this, Engel says that it is collaborating with proces- sors as early as the product and process develop- ment phase of many projects in order to continually reduce the amount of material used and facilitate the subsequent recycling of the products. Designed for larger packaging and logistics


applications, KraussMaffei has developed the GX 1100 machine. This means the clamping force range of the GX series is extended and is now available from 4,000–11,000 kN. At K2019, the company demonstrated a 20 litre bucket applica- tion with IML decoration using a new 26D HPS barrier screw. “With the new clamping force size of 11,000 kN, we are expanding the range of our successful GX series with a specific target,” says Hans-Ulrich Golz, President of the Injection Mold- ing Machinery segment of KraussMaffei. “We see great opportunities particularly in the areas of packaging and logistics.” The company says that the most recent member


of the GX series has the space-saving two-platen design, GearX and GuideX clamping elements, modular configuration and a wide variety of equipment options, for example the energy-saving


Right: BMB has introduced the eKW45HP/2200 Hybrid, a high performance new concept machine customised for the production of rectangular thin-walled containers with IML and Trexel’s MuCell technology


26 INJECTION WORLD | July/August 2020 www.injectionworld.com


second. With 8,000 production hours a year, a total of almost 130,000 buckets can be produced with the speed option. The HPS barrier screw for polyolefins allows for particularly fast melting and high shot weights due to the high L/D ratio of 26. The HPS barrier screws deliver a plasticising performance up to 40% higher than conventional high-performance screws from KraussMaffei. At K2019, digital functions controlled and


monitored the entire manufacturing process of the IML buckets. The APC Plus machine function ensured extreme consistency in component weight and thus high product quality by controlling the changeover point from injection pressure to holding pressure, as well as the holding pressure level, from shot to shot. Additionally, the dwell time of the PP in the plasticising unit was monitored for the first time, which ensures a high material quality. The DataXplorer, in turn, provided a detailed view of the depth of the process by storing up to 500 signals every 5 milliseconds as continuous graphs — for instance, signals from the machine itself or special signals such as the mould cavity pressure. The digital information from the injection moulding process and the information from the automation and peripherals flows converge in a new data collection point, which enables the customer to control and monitor its production flow specifically. Connection to an MES system is also possible. BMB has introduced the eKW45HP/2200


Hybrid, a high performance new concept machine customised for the production of rectangular thin-walled containers with IML and Trexel’s MuCell


IMAGE: KRAUSSMAFFEI


IMAGE: BMB


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