TECHNOLOGY | GRANULATORS
machines. Smart Control measures and stores relevant parameters, such as power consumption or the service lives of bearings, blades, screens, and V-belts, so enabling application-specific optimization of energy efficiency and contributing to sustainable production (see Injection World March 2020 for more details). Smart control caused quite an industry sensation
at K2019, says Mark Hellweg, Managing Director and owner of the company. “We were really overwhelmed,” he says, adding that he was delighted with the large number of orders. Tria too highlights the adoption on its equip-
Above: CMG’s Evoluzione granulator series currently comprises two models, the EV916 (pictured) and EV616, for wet or dry granulation
Right: Tria JM Series granulator
ends up in a surge bin ready for direct reuse or in a big bag for transportation elsewhere. The new controls also extend to the surge bin level manage- ment or to the automatic selection of a multiple position big bag filling station. Also new from CMG are “supergranulators” for post-consumer recycling. The Evoluzione series currently comprises two models, the EV916 and EV616, for wet or dry granulation, with granulation capacity from 2,000 to over 5,000 kg/h. Advanced controls monitor operating temperature, blade wear, productivity, operational efficiency, and energy use, with functional parameters being managed on the machine or remotely, with connectivity based on the OPC-UA protocol. All CMG units for recycling applications feature the company’s Adaptive Motor Power (AMP) function. The granulator is able to autonomously establish which power level to adopt to carry out its work, according to quantity of material to be ground, shape, weight, thickness, type of plastic, and temperature of the piece. AMP makes it possible to optimise the quality of the regrind and minimise the use of electricity. Santella says a CMG granulator consumes 20 to 25 Wh/kg, compared to over 40 Wh/kg for some rival units. K2019 may seem long ago, but it was the world’s last major plastics show. Hellweg Maschinenbau used it to debut granulators with a new digital Granumaster “smart” control system. This enables networked communication of the machines with upstream and downstream components, as well as with operators, in line with Internet of Things (IoT) principles.
Hellweg calls the Granumaster a digitalisation first for granulators, saying it made the company the first granulator manufacturer to offer connected functionality and electronic monitoring for such
42 INJECTION WORLD | January/February 2021
www.injectionworld.com
ment of smart control systems. “Tria is adopting Euromap directives in terms of communication protocols OPC-UA between different machines and has created applications that can be easily adaptive to the customer’s production line,” says a represen- tative. “These applications allow continuous monitor-
ing of the entire system; system diagnostics; tele-assistance; continuous monitoring of con- sumption; continuous monitoring of blade wear; monitoring of the temperature during material feeding, thus avoiding creation of dust, angel hair and overheating of material inside the grinding chamber; remote control of the system.” Wittmann’s G-Max 13 completes its G-Max
granulator series, which offers cutting chamber sizes ranging from 130 × 260 mm to 460 × 235 mm and engine outputs from 2.2 kW to 4 kW. Units can be used for material throughputs of up to 50 kg/h on injection moulding machines with up to
IMAGE: CMG
IMAGE: TRIA
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