Thickeners are used for low consantration materials to make their consantration higher and ready to filter them better. They also used to get back clean water. Their diameters change between 2000 mm. and 35000mm.

Full automatic thickener drive systems drive scrappers at wanted revolution and at the same time move scrappers up and down about 250 mm. and 300 mm. with its electronic torque control system.