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Engel, West Hall, Booth W3303 Highest degree of efficiency with the best quality and shortest cycle times: This is the daily challenge that the manufacturers of beverage caps face. For the production of 26mm caps with tamper-proof bands made from HDPE, Engel is presenting a state-of-the-art solution at the NPE.

At the core of the highly-integrated solution is an all-electric e-cap 2440/420 US injection moulding machine, equipped with a 96-cavity mold by z-moulds (Austria). On the periphery, Engel integrates a dry-air system by Eisbär Trockentechnik (Austria), and an optical in-spection system by Intravis (Germany) into the overall concept. To combine minimal energy consumption with outstanding process consistency and precision in the production of beverage caps, Engel relies on the all-electric high-performance machines of the e-cap series, which, with clamping forces of 120 to 460 US tons, were developed specifically for this market segment. With their high-performance servo-drives, the e-cap machines ensure the required plasticising capacity and maximises part production quality even when using the new high-strength HDPE materials with an MFI significantly lower than 2 or even 1 g/10 min. In spite of its impressive performance, the e-cap uses very little power and cooling water, even at high speed. The increased ejection and clamping forces help to achieve very short cycle times.

caption: Maximum output with minimal energy consumption: During the NPE, an all-electric e-cap injection machine equipped with a 96-cavity mould will be producing 26-mm caps with tamper-proof bands in a cycle time of less than 2 sec.

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