MATERIALS HANDLING | TECHNOLOGY
New solutions for keeping materials moving
Materials handling equipment and systems are increasingly required to be cost-effective, efficient, trouble-free, and easily controlled. Mark Holmes reports on recent developments
Moving materials around the injection moulding plant needs to be seamless and efficient. Auxiliary machinery manufacturers are designing simplified conveying systems to streamline production that ensure raw materials are where they need to be, at the right time and in the required state for process- ing. In addition, remote and efficient control of the process and mainte- nance of the system is essential for eliminating downtime and feeding data into management systems, increasingly governed by Industry 4.0 protocols. Maguire Products has developed a new vacuum pump that simplifies conveying of raw materials to blenders, dryers and machine hoppers. The company says that the NVRBE pump is easy to install, operate and maintain. It simplifies conveying of raw materials from storage and can be configured in automated “mini-central” conveying systems with extremely compact LowPro receivers mounted on multiple blenders in injection moulding facilities. According to Maguire Products, multiple units of the NVRBE vacuum pump may be used in a single system and it offers a number of user-friendly features. These include the Clear-Vu dust collection bin, allowing the operator to easily see when cleaning is required, as well as a filter safety switch, which minimises dust contamination. The switch initiates an alarm and stops the blower if the filter becomes clogged. There is also a pressure differential switch that acts as a clogged filter sensor, stopping the blower if the filter is clogged over 90%. In addition, a temperature safety switch
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prevents overheating of the blower. When the blower temperature exceeds a limit, an air bypass valve is opened to cool the blower. This valve prolongs pump life and minimises power usage by allowing the blower to keep running when no vacuum is called for. Finally, operation is quieter in comparison with positive displacement pumps. “The automatic features of the NVRBE vacuum pump and its simplicity of use make it especially compatible with Maguire’s LowPro receivers,” says Frank
Kavanagh, Vice President of Sales and Marketing. “Besides having an up to 80% lower profile than traditional receivers and being easier to configure, LowPro receiv- ers are autonomously controlled, making them suitable for deployment in automated mini-central systems for conveying to multiple blenders.” Conair has also introduced a new hybrid vacuum pump that combines quiet opera- tion, long distance conveying
power, energy savings and wave conveying capability. The company says that the multi-stage regenerative impeller design of the new Conair HRG Series vacuum pumps is the key to developing deep vacuum power for conveying plastic pellets over long distances, while keeping noise levels comfortably
Right: The new HRG Series vacuum pump from Conair combines quiet operation, long distance conveying power, energy savings and wave conveying capability
September 2020 | INJECTION WORLD 57
Left: Maguire Products has developed the NVRBE pump, a new vacuum pump that simplifies conveying of raw materials to blenders, dryers and machine hoppers
IMAGE: MAGUIRE
IMAGE: CONAIR
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