Removable hoppers make recipe changes extra easy in the extrusion process. This makes it easy to clean the batch blender. Injection molding often involves multiple color changes in a day. With fixed funnels, it is often a difficult task to get all the material out of the funnels. The removable funnels make this a simple job. The hopper loaders can remain in place during cleaning and no tools are required. In addition, the funnels are closed so that unnecessary material is not lost.
The removable weighing pan makes further cleaning of the dosing machine even easier. Only loosen an air coupling and the weighing pan can be easily removed without losing material.
The removable mixing chamber completes easy cleaning of the dosing machine. The mixing chamber is fully welded and equipped with a manual slide, so that no materials are lost unnecessarily here either.
The extrusion process often produces edge strips. These edge strips already contain the correct ratio of components. These can be reprocessed by grinding them to regrind. The regrind control ensures that the consumption of regrind by the GRAVIMIX follows the actual flow of regrind or regrind. The GRAVIMIX automatically adjusts the dosage between set percentages so that as many of these edging strips are used as possible, which means that considerable savings can be made on additives and master batch.
Hopper aeration can be used additionally to the plunger valves inside the hoppers. The aeration ensures that the very light foil particles are blown loose during dosing, so that even the most extreme bridging is broken.
Loss-in-weight hoppers can be used to map the decrease in weight of the complete mixture. This allows the extruder to be controlled on the number of grams that a meter of foil may weigh.
F4 and CF500 filters are used for the transport of materials before they are dosed and processed in the extruder. Because there is often regrind used, a lot of dust is created. A lot of dust can lead to a reduced capacity of the conveying system, which means that pleated filters or other filters that are cleaned with compressed air often also have to be cleaned manually. This stops the process. The F4 and CF500 filters work with filter bags and a vacuum-based self-cleaning that causes a very large airflow through the filter bags. This reverse jet cleaning is very powerful, so that the capacity of the system is maintained and there is hardly any manual cleaning required. This not only saves a lot of time, but also a lot of down-time.
Hopper loaders of the MOVAC series have been developed with great attention to detail. These details ensure that the process does not have to come to a standstill because a rubber is worn at the insert filter, because of clever design it is missing in our hopper loaders.