These check weighing systems are used for Boxes, packets, etc that have a specific Length, Breath and height. In addition, the contents of these are normally in a solid form. These weighing system have a lot of moving components and that’s why there is no concept of one size fits all.
The major users of these scales are
Processed Food Manufacturers
Dairy Packaged Solids like Cheese, Paneer, etc
Any industry where the packaging is more than 1000 units per hour.