To ensure a consistent input and product flow to the Hydrau Separator, the Presizer reduces any type of bones to a length of 15 cm (6") at a rate of 3,600 kg (8.000 pounds) per hour.
 
The Presizer has been designed with a minimum of moving parts to reduce maintenance and to optimize cleaning and hygiene. The principle of the Presizer is the utilization of hydraulic pressure against a moving wall, which in turn pushes the bones through a stainless steel grid. The presized bones are now in a format which is readily acceptable to the Hydrau Separator.