Roughing auger
This machine receives the waste and transfers it through a channel by means of an endless screw, in the walls of the channel there are holes, with a certain passage of light, through which the water will pass and the solids are retained inside channel and will be dragged by the screw until the end of the path.
Usually made of stainless steel. The gearmotor and the supports will depend on the characteristics of each installation and discharge.