St. Moritz (CH) 2019


St. Moritz, Switzerland (CH)

Year of commissioning:


Kind of application:

Sand and gravel treatment plant


50 tph of aggregates 0 – 60 mm

pozzato st moritz sand and gravel screening washing plant

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Our sand and gravel treatment plant installed close to St. Moritz has been realized to treat aggregates with dimensions 0 – 60 mm coming from several excavation sites.
The first vibrating rinsing screen, equipped with flow diverter fitted into the front chutes, is able to select the following three fractions:

  • Slurry including particles < 4 mm, which is sent to the sand washing plant equipped with pump and hydro – cyclone in order to remove the silt and clay. The cyclone underflow is treated onto a specific dewatering screen to remove the water in excess from the sand.
  • Gravel 4 – 32 mm which can be sent to the second vibrating dry screen or can be stocked on pile together with the fraction 0 – 4 mm in order to create a mixed product 0 – 32 mm
  • Oversize 32 – 60 mm which is stocked on pile

When the second dry screen is fed with the fraction 4 – 32 mm, the Customer obtains the typical three products needed in the concrete batching plants:

  • 4 – 8 mm
  • 8 – 16 mm
  • 16 – 32 mm