EDITOUR PETplanet Insider Vol. 23 No. 07+08/22 www.petpla.net 19 Strong in mid-range clamping forces and side-entry moulds Just in time for the top autumn trade fairs, Otto Systems is presenting its new preform production system “PET-Series” with 160 t and 240 t clamping forces. Otto Hofstetter AG is offering its proven cavity lock technology in side-entry moulds. We met: Mr Stefan Zatti, CEO Otto Systems AG; Mr Beda Grob, CTO Otto Systems AG; Mr Markus Feldmann, Head of Sales PET Otto Hofstetter AG The machine basis for the new PET-Series of Otto Systems – the independent consulting and engineering company under the umbrella of Otto Hofstet ter Holding – is developed jointly with BMB; Otto Hofstetter suppl ies the moulds and the complete handling system with three cooling stations is built and supplied by Otto Systems. Ot to Systems further combines all components, resulting in a highly integrated preform production system. Two special features shine out alongside the many small highlights in the series. Although it is a side-entry system, some of the existing top entry moulds can be used on both platforms with minor adjustments. A greater tie bar distance compared to the standards makes this possible. The second highlight is the electric clamping unit with an optimised five-point double toggle characteristic. Because the toggle moves outwards – differently to conventional constructions – as well as due to smart central force transmission a minimal platen deflection and stable parallelism can be ensured. This patented and over a decade proven clamping concept guarantees reduced wear and an extended mould service life. The toggle can also be supplied with extended arms. This allows the production of very large opening strokes for preforms up to 400mm in length and makes the system one of the few highly integrated machines suitable for large water container preforms. For Otto Systems, the obvious trend towards highly flexible smaller systems is clear. One reason is the ever-increasing number of individual designs which requires smaller production lots. Small mould configurations for large preforms and wide mouth applications are therefore an excel lent match for market requirements. On the other hand, more compact moulds for smal l preforms and a high efficiency in the performance of the PET-Ser ies enable an impressive output for moulds up to 96 cavities. For production with fast cycles (e.g. drinks preforms), Otto Systems offers the high efficient Shot Pot for the plastification. For production with high shot weights and low cycle times (e.g. water containers), the so called Time Safe Unit (plasticising with a side piston for the hold pressure) is ideal. The Otto Hofstetter moulds are impressive in their low maintenance requirements. Shot numbers of 12 to 14 million are more the norm than the exception before first maintenance is required. And this competitive advantage is no longer restricted to top-entry moulds. Now, Otto Hofstetter is offering its low-maintenance construction for sideentry moulds too. The trend towards smaller neck geometries on drinks bottles is also leading ultimately to smaller moulds or the same size moulds but with more cavities on the mould. At the autumn trade fairs, Otto Hofstetter will also present moulds with again reduced pitch. www.otto-systems.com www.otto-hofstetter.swiss Tour Sponsors: PET-Series 160 3100-SP-100 by Otto Systems 96 cavity side-entry PET mould Feldmann: We’ve spent the last two years intensively pushing side-entry moulds. This speed of development is only possible in family companies, where a problem identifi ed today already has a solution tomorrow. Zatti: Top-entry moulds can also run with minor adjustments on the PET-Series from Otto Systems. This usually reduces the investment costs for the overall system.
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