The Albro range includes net weight filling machines. These systems have the advantage of no moving parts in contact with the product during the filling operation.
Porous Nozzle / Nett Weight Filling Principle used on Beta-Fil and Alpha machines
| 1. In standby mode, a low vacuum is applied to the nozzle surface creating a suction effect which holds the powder or granules firmly to the inner wall. |
2. When a container is placed on the load cell, positive pressure fluidises the inner surface of the nozzle and hopper. This causes the product to flow at high speed into container and also purges the porous nozzle. |
3. When 90% of the product has been dispensed in the primary bulk-fill stage, the positive pressure is switched off. The product then continues to enter the container in a controlled manner, but at a much reduced rate. |
4. Once the final fill weight has been achieved, a vacuum is again applied to the nozzle giving an immediate and extremely positive product cut off with absolutely no dribble or run-over. |