Muller Martini makes use of the unique digital solutions technology of the SigmaLine as the first fully integrated industrial-grade total solution for digital book production, and with the new offline solution of the SigmaTrimmer three-knife trimmer it gives graphics companies even more flexible application options.

The solo version of the SigmaTrimmer is especially interesting for printers with a mixed job structure and for printers that want to get into the digital printing market with smaller machines.

The final format for each book is read in individually during infeed with a barcode scanner, and all settings are made automatically. Because the knives on the SigmaTrimmer are permanently mounted and the products are moved towards them on a turntable, books in an extremely wide range of formats, sizes and print runs can be trimmed at up to 1000 cycles per hour without interruption (zero make-ready). This solution is particularly interesting for

• printers with a mixed job structure because, due to the time-consuming changeovers of a conventional three-knife trimmer, they lose considerable time during the finishing of their softcover products
• printers that want to enter the digital printing market with smaller machines
• printers that print books using both digital and offset processes
• printers with very small print runs (down to one run) because they frequently trim a wide variety of final formats from just a few standardized raw book formats; therefore on the SigmaTrimmer the maximum foot trimming was additionally expanded from 30 to 75 mm – which in digital printing allows an even larger degree of efficiency and flexibility for their printed products.

Because the knives in the SigmaTrimmer are permanently mounted, books of a very wide range of formats, sizes and print runs can be trimmed without interruption at rates of up to 1000 cycles per hour.