MACHINERY | MATERIALS HANDLING


Right: Motan’s Metrovac SG is an inexpensive solution for smaller conveying systems


“This offers a solution to many of the issues associated with traditional profile dryers. Our blower-driven units greatly reduce noise levels and significantly cut energy consumption compared to compressed air nozzle arrangements.” Typical applications include EDPM, nitrile rubber


extrusions, PVC, plastic extrusions, silicone seals, profiles, tubes, pipes and bars.


Two in one Koch-Technik says that its Ekon air dryer – which it introduced at K2019 last year – combines the advantages of its CKT and Eko drying concepts in a single machine. Ekon is available in eight sizes, with outputs ranging from 110 to 2,000 m³/h. The concept of a heat exchanger with piping system – taken from the Eko dryers – has been improved in the new series. As heat is recovered, energy consumption is reduced by 20-30% depend- ing on the material drying temperature, says Koch. As well as a standard blower with frequency


regulation (from the construction volume of 300 m³/h) the new dryer is also equipped with Koch Öko’s patented energy management system, which adapts to the drying process to save energy and protect the material. By combining dew point control, Öko equipment and blowers with frequen- cy regulation, up to 50% energy savings can be achieved when drying the granulate, says Koch. Various drying containers with capacities of 20-600 litres can be integrated into Ekon. Safe operation of the dryer is ensured by micro


filters, overload protection, air check and tempera- ture limiter. The drying process is constantly monitored via sensors. Dry air with a dew point of -55°C can be produced to absorb moisture from the granulated plastic and to achieve the required residual moisture content of the dried material. Using an Ethernet connection, the device can be connected to a corporate network to control the drying centrally.


Inexpensive conveying Motan says that its new Metrovac SG offers an optimal, inexpensive solution for smaller conveying systems. It comprises a vacuum blower, a control and a cyclone dust filter. Up to eight hopper loaders can be connected to the PLC control. The Metrovac SG is available in four blower sizes between 0.85 and 4.3kW. Motan says that a combination of maintenance-free blower and cyclone dust filter makes it versatile – and easily adaptable to individual conveying systems. To generate a constant, reliable vacuum, the conveying station uses side channel blowers. These


30 PIPE & PROFILE EXTRUSION | October 2020


can be placed directly next to the processing machine, and are ideal for short to normal convey- ing distances, says Motan. The FC filters combine cyclone dust separators with a fine dust filter. The transparent dust collector makes removing accumulated dust quick and easy. When using the optionally available bypass


valve, filter cleaning is carried out automatically. Likewise, the filter cartridge is regularly cleaned by implosion air that flows through the cartridge. Material feed lines can be thoroughly cleaned of


any material after each conveying cycle. Among other things, this is particularly important when conveying hygroscopic materials.


Wizard guide Movacolor has developed a configuration wizard for the touchscreen controller software used in its gravimetric and optometric feeders. The wizard guides the user through the configuration process of the software, ensuring that loaders are config- ured, the correct dosing tool is selected, and the initial load-cell calibration performed. The controllers offer optimum control through an 8in multilingual touchscreen with intuitive operation. The start-up wizard can be used for installation and configuration, and the controller can store up to 1,000 recipes and materials. The unit has a stainless steel housing and one control- ler fits all gravimetric units. There is a VNC remote operation option.


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