Utilizing Elmo Rietschle side-channel compressors and vacuum pumps, motan‘s METRO G and GRAVICOLOR product lines offer a prime example of how process flow digitalization is improving material flow and productivity across the plastics industry.
Whether for material- or machine-related reasons, the single or multi-stage pumps, which can be controlled in a wide range of pressures, can be used flexibly and linked with higher-level control systems. The power range of the frequency-controlled, energy-efficient side-channel compressors has been expanded to a peak value of 22 kW.
A large customer with a production facility in Monterrey, Mexico, is capitalizing on these energy saving opportunities. At the site, motan-colortronic supplied and installed all the equipment for fully automated and centrally monitored material handling. More than 500 gravimetric mixing and dosing devices from motan’s GRAVICOLOR series are used with more than 1,500 conveying devices.
The Ethernet-based control system concept, in conjunction with a higher-level display facility, enables the integration of the control systems required for drying, mixing, conveying and storage.
Every production line, each with around 25 injection moulding machines for new goods and ground material, is supplied by two Velocis side-channel compressors from Gardner Denver’s Elmo Rietschle division.
With regard to operational reliability, Detlev Schmidt, Sales Director at motan-colortronic, explains the primary benefits derived from the system concept. “The compressors function absolutely maintenance-free and are extremely low- noise,” he says. As a further advantage, he also mentions that the frequency-controlled devices are suitable for achieving economical conveying with air volumes adjusted to match requisite material throughput.