There are available three different solutions:
1. OFF LINE HOTMELT GLUE COATING UNIT, in two phases: this solution utilizes the electronic equipment of the sleeve machine. Two different working phases are involved: the coating phase and then the seaming phase;
2. IN LINE HOTMELT GLUE COATING UNIT, in one phase, not in register: this solution involves the installation of a coating unit complete with its own electronic equipment. Both working phases will be run at the same time in a single passage but not in register;
3. IN LINE HOTMELT GLUE COATING UNIT, in one phase, in register: as the previous version also this solution is provided with a own electronic equipment and the manufacturing is done in a single phase but, additionally, this solution operates with an insetting register control.