1)application:

Automatic counting packaging for 20-200 per pack.

Mixed counting packing for 2 kind of materials, number can be adjusted.

Common mixed material: expansion tube+screws, screws+nuts, screws+washers etc

Different packing material, different counting device and different configure.
link:http://www.kallymachine.com/vertical-packaging-machine/multifunction-packing-machine/double-plate-counting-packing-machine.html