The horizontal impeller type valve bag packer is a specialized machine used to pack powdery products with a relatively low density, such as titanium dioxide and nano calcium carbonate. These products can be challenging to fill using traditional bagging methods due to their lightweight and tendency to shift during filling. 

The impeller in the packer is driven by a motor, allowing for a consistent product flow into the bag. This helps to ensure that the bag is filled wholly and evenly, which is essential for maintaining accuracy. The rotational speed of the impeller is controlled by a frequency converter, which allows for precise control over the filling process.

One of the key benefits of the horizontal impeller type valve bag packer is its ability to maintain high levels of accuracy while operating at relatively high speeds. This is achieved through the use of advanced control systems, which can adjust the filling speed based on the characteristics of the product being packed. This means that the machine can operate at a consistent speed, even when packing products that have varying densities or flow characteristics.