Extrusion International 3-2018

19 Extrusion International 3/2018 Electric Drive Technology for a Sustainable Development At the Plast 2018 in Milan Plastiblow exhibited a fully elec- tric blow moulding machine PB15ES-700 with double head, in a very interesting configuration, for the production of 5-li- ter bottles with handle in two cavities. Several adjustments are possible on this machine characterized by accessibility to all components and simple and rapid production changes. Another blow moulding machine PB30ES-750 was also vis- ible on the stand via webcam or directly at the factory in Cor- sico thanks to organized visits. This machine was equipped with a high efficiency mould for the production of 20-liter stackable jerry cans in medium-high molecular weight poly- ethylene with view stripe. Moreover, it was equipped with two post-cooling stations and a radial wall thickness control system (PWDS) allowing fast cycles and very good thickness distribution. The fieldbus architecture for the connection of the various electronic components at distributed intelligence, allows a digital transmission of signals with maximum reliability and speed, a precise synchronization of the servo-driven move- Plastiblow S.r.l. www.plastiblow.it ments and an accurate diagnostics and supervision of the system in real time. The machine was also equipped with a module that enables the recovery of the kinetic energy of the carriages during deceleration, converting it into electrical en- ergy that is returned to the line. The technical solutions adopted to achieve the servo-driven movements are patented and are a distinguishing feature of the Plastiblow machines. Gear Extruder ROTOMEX Series Extended In order to meet continuously evolving material requirements, TROESTER has expanded their existing offering of the Rotomex ZX series gear extruders with the addition of the ZX 75neo and ZX 120neo. Offered in a wide variety of sizes to meet an array of applications from small to large output requirements, these ma- chines are ideally adapted for direct feeding of extrusion, calen- dering and other rubber processing equipment. The new ZX neo machines incorporate several upgrades to the current Rotomex offering, including a safety clutch that releases when a torque limit is reached to prevent damage to the ma- chine or two temperature control units, whereby the gear pump housing and the head can now be controlled independently. This creates an opportunity to achieve higher throughputs. Other features are a fully integrated loop control that is ready to easily connect with downstream equipment, an optimized handling of the rubber leakage and a disassembly aid for the breaker plate. Moreover, the larger operator panel that includes a scandisk memory card port to allow for easy recording of production data. In addition, there is a database of service information that pro- vides details about critical spare parts, and who at TROESTER to contact for troubleshooting and service needs. The ZX 75neo and ZX 120neo are now available in addition to the conventional Rotomex sizes. A ZX 75neo will be exhibited on the DKT Expo in Nuremberg, Germany (July 2 – 5, 2018). Following the expo this machine will be available for trials at TROESTER in Hanover, Germany or for rental upon request. TROESTER GmbH & Co KG www.troester.de