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Muller Martini  trimming 
Since its launch at drupa 04, the Müller Martini Frontero front cut trimmer has been installed in more than 50 locations around the world. The Frontero can cost-effectively produce gatefolded brochures up to 60 mm in product thickness, in a single pass. Now, the Frontero can also handle spine lengths up to 490 mm, enabling an even wider range of products to be processed in two-up production.

Capable of high speed output, up to 6000 cycles per hour, the Frontero can process a wide range of sizes, including landscape up to A4. It offers high trim quality, thanks to its swing cut against cutting sticks and it is possible for the operator to make fine corrections on the fly.

The unit can be retrofitted into existing adhesive binding lines, says Müller Martini.

The Frontero’s design principle is simple: The cover is retracted by suckers and the book block is pressed with a bar. The front cut is then completed. Next, the cover is released and it glides back to its original position. Because the upper and lower sucker bars can be switched on and off separately, products with only one flap - front or rear - can also be produced.