Efficient quality-improvement of used sand, e.g. reclamation of mixed sand and reclamation of core sand with the goal of using the reclaim as replacement for new sand in the sand system.
For the grinding reclamation the sand has to be dry and in single grains (nearly free of active bentonite and not hardened binders and the temperature of sand must be lower than 60 °C with a grain size of 0,063 - 1 mm
By the grinding reclamation the loss on ignition is reduced.
The reclaim contains "round grains" that allow a high packing density and less binder consumption combined with a top fluidity of the reclaim.