A pre-packer is a unit installed right after the folder-gluer, and before the packer, as depicted in the image below. 

Most often, several pre-packer units are installed after the folder-gluer. 



💡 Purpose: Pre-packing equipment allow you to prepare the shingle (overlapped stream of boxes) in the right orientation before it enters the case packing process. This way each shingle can be packed into the cases with the right orientation and in the most efficient way possible. 

Those pre-packers include the 3 categories below:
You want to know if you really need a folder-gluer packaging equipment?