Page 136 - Demo

PRECAST CONCRETE ELEMENTS136 CPI %u2013 Concrete Plant International %u2013 6 | 2025 www.cpi-worldwide.comHPGM 2250 planetary mixerThe core component of the new mixing plant is a Wiggert HPGM 2250 planetary mixer with a concrete output of 1.5 m%u00b3 per cycle. The lining with Wicodur 4000 composite armoured plates ensures a long service life, while the integrated mixer filter ensures almost dust-free production. The automatic high-pressure cleaning system, also from Wiggert, ensures thorough and fast cleaning of the mixer and thus minimises downtimes.High accuracy and repeatabilityThe aggregates are dosed onto a weighing belt via double dosing gates. Electronic weighing cells, automatic coarse/fine dosing and overrun correction ensure high accuracy and repeatability. Moisture probes in the sand chambers correct the effective sand weight. A microwave probe in the mixer floor records precise moisture values during the process.Dry mixing with subsequent moisture measurementAfter the aggregates, cements and additions have been added, dry mixing is carried out with subsequent moisture measurement. The missing water is then added and the wet mixing time is initiated. The mixer empties the ready-mixed concrete either directly into a truck mixer or transfers it to the bucket conveyor, which supplies the circulation plant with concrete. A water scale on the mixer can be used to replace some of the fresh water with treated wash water from the recycling plant.The chamber allocation is automated via barcode scan on the delivery note.Filling of the lifting bucket%u00a9WiggertHPGM 2250 planetary mixer Control room of the mixing plant