EXHIBITION REVIEW | PLAST 2018
Cutting edge Sica showed a fascinating cutting unit for small, rigid tubes. The Duet 160C has two carriages rather than one, enabling the unit to cut short sections – 250mm say – very quickly. It can run at over 30 m/ min. The two carriages move independently of each other, with their positions under closed-loop control. The unit also has a novel cutting system that prevents residues from settling inside the cut tubes, using two cutting arms: the first makes a chamfer and the second then uses a knife to cut cleanly through. The unit can also run with just one carriage operating if needed. At the same time, Sica also showed a fully
Above: At Plast, Friul Filiere produced cladding profiles using a special PVC compound that used a filler derived from rice husks
Right: Bausano showed three extruders during the show
Energy savings Tecnomatic showed one of its Zephyr energy- saving extruders for polyolefin pipe. This one had a 75mm screw with a 40 L:D. The same model is available with or without a gearbox – the latter version using a variable torque motor instead. Increased screw length, lower torque and AC water cooled motors on Zephyr extruders all assure the same output of larger extruders but with a better energy efficiency, it says. A new feed bush is said to keep friction – com- monly generated by raw material transport – to a minimum. The screw has also been designed to optimise torque and shear, improving output while keeping melt temperatures low. The company’s focus at the show was on equipment for production of large-diameter pipe (up to 630mm), mainly for water, using PE80 and PE100 materials. Tecnomatic can also supply systems for pipe up to 2006mm in diameter. Bausano, meanwhile, which is well-known for its MD counter-rotating twin-screw extruders as well as single-screw types, showed three extruders: an MD Plus 130/30 with the new Smart Energy system for cylinder induction heating; an MD Plus 75/30 for WPC profiles, with a calibration bench; and a TM 90 L/D 25 equipped with the new integrated Digital Extruder Control system, and a cutter. The new control system, which Bausano says fits in with the Industry 4.0 concept, makes it possible to manage the entire production line and to plan work cycles – remotely if necessary. The HMI has a 15in or 21in multitouch screen, through which the user can (among other things) manage various process parameters and recipes, and also pull up information on energy consumption. Bausano’s ‘smart energy’ system uses electro- magnetic induction to heat the cylinder, which can reduce energy consumption by up to 35%.
42 PIPE & PROFILE EXTRUSION | July/August 2018
automatic winder, the Flash 450 for 450mm diameter tubes, which has three reels, allowing it to wrap and label as well as wind, discharging a product that is ready to go onto the shop shelf. Sticking with downstream equipment, Balzanelli showed a unit from its Excellence series of pipe coiling units, the TR2500 PE double winder for various types of polyethylene (PE) pipe from 20 to 90mm. This is a fully automated unit that coils the pipe, applies straps to keep the pipe coiled, transfers the coil, and then ejects it. One key difference to previous units is the highly dynamic strapping head that enables faster strapping and hence higher overall speeds. The user interface contains various recipes, so the operators simply keys in the reference of the recipe he wants to use, and the machine automatically adjusts its own settings. The interactive HMI has integrated diagnostics and help pages.
Profile punching Baruffaldi Plastic Technology showed its latest hot punching machine for profiles, the HPM-10. The system allows the punching of multiwall profiles without the use of die and with no limits on the
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PHOTO: PETER MAPLESTON
PHOTO: PETER MAPLESTON
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