en.Wedoany.com Reported - Quartzline, a Dutch manufacturer of self-leveling floor screed, uses VEGA level and limit measurement instruments to monitor 15 storage silos at its Dordrecht plant. With radar sensors, the company precisely tracks raw material inventory, enabling efficient production and cost savings.

Founded in 1976 as a poured floor installer, Quartzline has grown into one of the world's largest producers of floor components. The company manufactures floor components for construction sites, including Component A made from sand or gravel of varying grain sizes, and Component B, which determines the liquefaction and hardening effects of the floor. Its products are widely used in private homes and commercial buildings, such as car dealership showrooms and workshops.

After moving into a new facility, Quartzline gained the capability to dry sand and gravel on-site. The production process demands extremely high cleanliness standards, similar to those in the food industry. To avoid cross-contamination between different color batches, the company thoroughly cleans the mixer after each batch and carefully plans the production sequence.

For production monitoring, Quartzline learned about VEGA products through the construction company responsible for building the new plant and conducted a pilot test on one silo at the old facility. After the pilot's success, all silos in the new plant were equipped with VEGAPULS radar sensors. In the liquid tank area, a VEGA level switch was installed on the ST system; for bulk solid silos, VEGAWAVE S61 level switches were used for supplementary monitoring.

Rob Smulders of VEGA Netherlands noted that for abrasive media like sand, non-contact radar level measurement is a superior choice compared to mechanical methods, such as cable level indicators with floats. Quartzline Operations Manager Fred van Zanten stated that the old method of measuring silo levels with aluminum rods and hammers was no longer suitable for the new plant's scale, and radar level measurement technology provided a precise solution.

In practical applications, some products in the silos experience bridging and funneling effects, with larger sand rings occasionally adhering to the silo walls, causing the sensor to misinterpret them as the material's upper boundary. When a sand ring collapses, the level transmitter suddenly shows a reduction of 20 tons of raw material. Quartzline mitigated this issue by installing ventilation systems in the silos.

Van Zanten believes that the investment in VEGA measurement technology has yielded more than expected returns. Accurate inventory information allows the company to purchase raw materials when prices are lower. One silo can hold three truckloads of material, providing significant flexibility in procurement strategy.

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