The hopper of the filling system receives the products and prepares the batch. When one batch is ready, the bulkheads open and insert the products on the second hopper underneath, which puts the products on the bottom of the carton tidily. At the same time, the first hopper closes to receive the products arriving from the production line and starts preparing the new batch.
The system provided with pre-stacking hopper and product insertion hopper allows the introduction of the batch into the carton previously formed while the new one is being formed.