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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.

Motan holding gmbh

The motan group, based in Überlingen, on Lake Constance, was founded in 1947. As a leading provider of continuous raw material handling equipment, it is active in the fields of injection moulding, blow moulding, extrusion and compounding.

The company’s application-focused product range includes innovative, modular system solutions for storage, drying and crystallisation, as well as for conveying, dosing and mixing raw materials for the plastics-producing and processing industries.

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For the production location of a large customer in Monterrey in Mexico, motan-colortronic supplied and installed all the equipment for the fully automatic and centrally monitored material handling system.

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The power range of the frequency-controlled, energy efficient side-channel compressors has been expanded to a peak value of 22 kW.

C-VLR 301 claw vacuum pump with frequency-controlled IE3 motor; suction capacity up to 370m3/h; ultimate vacuum in continuous operation 200 mbar (absolute). The sound pressure level was able to be reduced considerably through sound engineering.

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The chart illustrates the energy saving through the use of intelligent converter technology at varying flow quantities. A calculation example for the operation of a single frequency-controlled 11 kW side-channel compressor over 20,000 operating hours shows a saving of €3,900 if just 10% less electricity is consumed at a price of €0.13/kW.

The opportunity for sustained cost savings is far greater, however. The low-noise, low-maintenance compressors and vacuum pumps all have a modular design with adaptive, needs-based control. Therefore, equipment builders and even users can exploit significant reserves through the control system-related interplay of the frequency-controlled drive line and its flexible adaption to the system technology.

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