What is the feature of perfect binding machine with roughener unit?

Q: Perfect binding machine S320D and S460D both contain the roughener unit. What is the feature of perfect binding machine with roughener unit ?

A: The unique part of roughener unit for perfect binding machine can be used to roughen the book spine before the binding process. Through roughening process, the glue binding effect will be stronger and the finished book will looks firmer and more delicate compared with the books without roughening process.

What more, the roughener unit for S320D and S460D perfect binder is unlike other spine rougher that grinds the spine creating lots of noise and dust. Using this dust-free spine roughening unit, it opens the paper grain with very little noise and there is no paper dust. It makes the machine suitable for handling the most difficult papers and making the solid bound.

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