When cutting insulation sheets from EPS blocks, cutting waste is generated which can be reused. This waste is transferred first to the roughing unit, then to the dusting unit and then to the mixing unit.
Through this unit the recycled and virgin material is mixed and reconstituted into blocks.
A double rotary valve unit with combined outlet is available. The percentage of regrind to virgin material can be infinitely adjustable from 5% to 50% with different rotation speed of the rotary valves. The electronic speed control of the drive motors determines a constant mixing ratio. By closing the milled material dosing unit, only virgin material is fed into the block mold. Furthermore, the filling levels of the storage silos are monitored and controlled by level sensors.