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MACHINERY | MIXERS


Right: MTI Flex-line Heating/ Cooling Mixer Combination MTI Flex-line offers high mix quality for dry blending and compounding


“Remote access not only makes it easy to detect faulty components, but updates for software- supported parts and PLC controls can also be uploaded without the need for manual intervention by a technician. By being able to access the HMI at the plant directly, the local operator can also be instructed and trained on the system as well,” Schär says. MTI uses GS- and WAN-based modules to establish a secure connection to its own server via a VPN tunnel to ensure that safety of data transmission is not compromised. However, data security is not the only challenge to consider, especially where remote access goes beyond troubleshooting. Commissioning via remote access, which is especially necessary due to Covid restrictions, poses special challenges for both operator and supplier and is only possible if strict safety requirements are met and well-trained personnel are involved on the user’s side.


Remote intervention “Remote access cannot replace one’s own eyes and ears on site at the machine, so communication during the process is of particular importance,” says Schär. “Video- supported tools, such as Microsoft Teams or


Skype, are valuable additional instruments here.”


Schär says the first mixing plants have


Above: The Aspiration Vent tec 2.0 filtration system offers optimal dry blend quality and dehumidifying performance


already been commissioned by the company in some high-risk Covid areas. “During implementation it soon became apparent that this type of service requires much more intensive preparation. The operator on site usually does not have the specialist knowledge required and must be introduced to the subject with illustrated documentation and then guided through the process. The additional time required for the supervision and implementation of commissioning via remote access must be taken into account – in particular by the provision of trained personnel by the supplier. MTI has recognised this and is strengthening this area accordingly for future orders.” The range of mixing solutions available from MTI includes Vertical High- Speed Mixer Universal friction mixers, which are


50 COMPOUNDING WORLD | November 2020


IMAGE: MTI MISCHTECHNIK INTERNATIONAL


suitable for free-flowing raw materials with or without the addition of liquids and offer heating, temperature control, reaction, melting, coating, agglomeration and dispersion under pressure and vacuum if required. The MTI Unitec Vertical Universal Mixer line is said to offer high energy efficiency together with maximum productivity and mixing quality, and fast formulae changeover. The company’s Horizontal Mixer provides a proven solution for mixing, dispersing, granulating, coating, heating/cooling and drying of products for virtually all applications. MTI’s Flex-Line Heating/Cooling Mixer


Combination provides high mix quality and is said to be well suited to more demanding tasks such as dry blending and compounding, for example. The Eco-Line Heating/Cooling Mixer Combination MTI Eco-line offers a standardised heating/cooling mixer combination and is said to provide good throughput rates at a cost-effective price and operating cost. The MTI Laboratory Mixer is a universal solution device for trial mixtures and small-scale production runs. Designed for efficient and flexible batch mixing, the company’s MTI C tecPRO


device can be used


with vessels of various sizes up to 600 litres. And the MTI Aspiration Vent tec 2.0 aspiration and filtration system is said to be widely used in hot mixing processes for PVC production and processing of natural fibre compounds, such as WPC and PPC.


IMAGE: ZEPPELIN SYSTEMS


Left: The CMQ Container Mixer from Zeppelin Systems is said to slash cleandown times


www.compoundingworld.com





IMAGE: MTI MISCHTECHNIK INTERNATIONAL


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