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High-Resolution Flow Meter

Featuring Sensitive Control and Comprehensive Documentation

Elmet Elastomere Produktions- und Dienstleistungs GmbH, Oftering, Austria, offers a high-precision, automatically controlled multicomponent dosing system with a high-resolution flow meter. Integrated as a closed-loop control instrument into the colorant and additive feeding system, it determines the dispensed volume with a resolution of 640,000 increments per liter.

Combining a high-resolution flow meter with sensitive control and comprehensive documentation of additive and colorant metering, Elmet meets the stringent demands placed by the health-care industry on liquid silicone rubber injection molding (© Elmet)

On the basis of these precise measurements, the system accurately controls the supply of colorants and additives, in line with the setpoint defined on the touch display. At the same time, the corresponding values are made available for documentation. Processors of colorless functional additives, including certain active ingredients, will in particular benefit from such precision-controlled metering. Optically imperceptible and hence, potentially undetected deviations from the setpoint, e.g. due to wear, clogging strainers or changing properties (viscosity) of the additive charge, may cause significant extra costs and, in the worst case, may even have an impact on the health of the end user. The Elmet system, based on exact volume measurement, ensures that the necessary metering accuracy is maintained throughout by continually readjusting the feed rate to the originally acquired and stored reference value. As long as this readjustment remains within a certain tolerance range, the operator is informed of this situation so that action can be taken in good time. However, if tolerances are exceeded, the system will automatically discontinue the production process to prevent rejects before they occur, thereby saving costs.

The new flow meter is part of Elmets feature-packed Top 3000 S multicomponent dosing system for LSR injection molding applications, which boasts particularly rugged and energy-efficient pneumatic drives and supports the use of both 20-liter and 200-liter drums. The system maintains the mixing ratio of the LSR A and B components unchanged over the entre drum content, ensuring material utilization of over 99%. Its maximum discharge rate is 2.5 l/min, with a rate of colorant addition of up to 10%. The associated process data for each individual shot can be exported via an USB, LAN or WLAN interface.

Company profile

ELMET Elastomere Produktions- u Dienstleistungs-GmbH

Tulpenstraße 21
Tel.: +43 7221 74577-0
Fax: +43 7221 74577-11

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