Machinery News

Maag unveils performance-boosting pumps

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The Vacorex discharge gear pump is for where assemblies are needed in polymer processes that are able to extract low and high-viscosity plastic melts gently from reactors and degassing systems. The production process takes place directly below the reactor. A constant and precise filling behaviour, coupled with short standing times, allows this series for use in the polymer industry. Other plus points the company says are the high level of efficiency and long service life increase the overall efficiency and availability of the production plant. The series comprises sizes 45 to 560.

The Thermorex series also focuses on the gentle conveying of carrier media of varying viscosities for polymer processes. A special gearing with a low squeeze factor is one design feature that makes the Thermorex transfer, booster or metering gear pump ideal for polymer processes. Other benefits, according to Maag, are the high degree of efficiency with constant and precise transport - even at high outlet pressures. The pumps are integrated as transfer or booster models into the transfer pipe (in-line) or directly onto the mixer, kneader or extruder. The series comprises series sizes 45 to 360.

Other features of both the series are the higher performances and the compact construction, with optimised inlet geometries. The design of the flow channels has been optimised to encourage flow. The carrier materials can be heated continuously to up to 350°C in order to influence their viscosity. This yields viscosities of up to 20,000 Pas. A special gearing system with extremely low squeeze effects allows polymer melts to be handled gently.

Furthermore, Maag says the shaft seals, gear and bearing technology ensures minimum friction and higher efficiency. And last but not least, the two series offer low-pulsation transport even at high differential pressures.