Granule processing

Foto by Alexander Grey on Unsplash

 

The effective drying and dedusting of plastic granules is essential for the production of high-quality plastic parts. Often, the granules are already contaminated with dust and fibers (also known as angel hair) due to abrasion during delivery. These impurities can lead to quality defects in the end product, especially in products that require high optical quality or a high-gloss finish. In severe cases, such impurities can even cause product jams and thus downtime of production facilities. Our pressure measurement technology offers precise monitoring of the vacuum in dedusting systems to minimize such risks.

Another critical aspect is the adequate drying of hygroscopic thermoplastics to bring them to an optimal residual moisture content for processing. This is achieved through special air treatment, which ensures an extremely low dew point and thus a minimal absolute water content. WIKA’s temperature measurement devices contribute to an energy-efficient operation of the drying plants, while our level measurement devices control the material fill level in the drying container. Pressure gauges, on the other hand, ensure efficient air conveyance through the blower.