Stacker 500 is based on a completely new principle: vacuum plate conveying. the heart of the machine comprises two motor-driven perforated belts linked to a vacuum generator, air is evacuated through the holes in the belt, to create a vacuum capable of lifting and conveying the grids to the stacking area. the machine is completely enclosed to avoid the dispersion of lead powder into the enviroment, while equally ensuring easy access to all mechanical parts: the sturdy structure and the application of material such as stainless steel make the machine durable and reliable, easy to clean and without the need for frequent maintenance.