This is a classic washer roller quite similar to those that have been used in the industry for over 50 years.
Some customers prefer this version as it is the type they have used for many years. By simply removing the screw at the end, the roller can be stripped down to its individual washers for easy cleaning should the roller become clogged. However regular washing with a laminating brush and some acetone should keep the roller operational without the need for stripping down.
This roller eliminates air pockets quickly and effectively. With its series of steel washers separated and mounted on a steel frame, it is both strong and robust.