CUSTOM WIDE WEB SELF ADHESIVE COATER

Gravure Coater:

1 off direct/reverse gravure coating head comprising engraved ceramic coated gravure roll and rubber covered impression roll pneumatically loaded and with automatic gap control.

This system would enable the operator to “dial-in” the required gap which would then be set automatically via the electronically controlled motorised system.

The impression roll would be of composite construction utilising a base steel roller carrying a removable rubber sleeve mounted.

The rubber sleeve is mounted on a central air mandrel and mounted in special bearing assemblies which allow the sleeve to be changed without the need for tools and without removing the roller from the machine.

This addresses the requirement for different face lengths of rubber roll when coating different widths of web to avoid the possibility of the coating spreading on to the edges of the non-coated side of the web.

The sleeve(s) to be covered in anti-static Hypalon rubber.

The unit would incorporate a stainless steel container and pneumatic pump system to enable the solvent based coating to be pumped via a chambered doctor blade onto the gravure roll.

The gravure roll would be driven on a variable speed drive with speed trim linked into the main drive. Prior to the coating nip, a double- sided contact type of web cleaner would be fitted.