With up to three folding units and a maximum of 14 (Ti 52) and 16 (Ti 36) buckle plates, Heidelberg’s Stahlfolder Ti series folders produce a wide range of fold types, including complex fold-gluing and gatefolds. The 3.15”x3.94” Stahlfolder Ti 36 specializes in the very short fold lengths with numerous parallel and cross-folds that are typical of items such as pharmaceutical inserts, user instructions, advertising materials, and packaging inserts. The Stahlfolder Ti 52 fulfills the requirements of medium-format customers, such as quick and easy processing of traditional advertising brochures, flyers, and signatures with eight A4 or A5 pages. It can fold flat formats ranging from 3.94”x5.91” to 20.47”x 33.07”. A host of configuration options enable both folding machines to be adapted for individual jobs.
On the high-output Stahlfolder TD94/112, an ingenious pneumatic twin lay system substantially increases output without increasing machine speed. Normally, the sheet is fed into the folding machine lengthwise, but with the new pneumatic twin lay system, it is rotated 90 degrees for oblong feeding. The pneumatic twin lay system after the first folding station transports the sheets to a twin lay at the second folding station, where two sheets at a time are processed in parallel. As a result of the sheet's shorter feed length at the same machine speed, output is increased by around 30 to 40 percent based on format alone.
A Cutting Edge for One-Shift Operations
Connectable via ordinary house current wall outlet, the new programmable POLAR 56 guillotine cutter with hydraulic drive is an apt choice for commercial one-shift and digital printers. Equipped with a 5.5'' monochrome (56 ECO) or 18.5” touchscreen display for the networkable version (56 NET), the small-format POLAR 56 combining POLAR’s legendary reliability, build quality, and ease of use in a new, small-format size will be launched at drupa 2012.
Digital Book Trimming
Digital book production down to run lengths of 1, combined with commercial print quality trimming at a reasonable cost has been a challenge in the industry. Choices for trimming have been either expensive book trimmers, or cutting on standard guillotine cutters. The latter raises quality issues due to the clamp crushing the spine, unless a special clamp is used. At drupa, Heidelberg and POLAR will show the new BC330 book trimmer that is ideally suited for digital book production in combination with single clamp perfect binders, such as Heidelberg’s Eurobind 600. The BC330 is capable of cutting books from raw sizes of 4 ¾” x 6” to a maximum of 12” x 13” with a thickness per cut of 2”. Multiple books in a lift also can be cut, improving productivity to a maximum of 240 blocks of books per hour.
POLAR also will launch a new version of its “N” series guillotine cutting systems. Evolving from the highly successful X series cutters, “N” series cutters from 78cm (30”) to 176cm (69”) incorporate all of POLAR’s industry leading technology, including hydraulic clutch with worm gear drive design with either a 22” (N Pro) or 18.5” (N Plus) color touchscreen display. These cutters combine POLAR’s latest networking capability to drive cut programs from impositioning software in prepress directly to the cutter through CompuCut 5.0. Production information from the cutter can be retrieved back to the MIS system, and animation of all cutting functions promotes ease-of-use, shortens makeready, and minimizes waste. Also available is an OptiClamp that provides for improved cut quality of compressible or wavy stocks such as synthetic labels. The POLAR N92 now also boasts a front downholder feature for small cut product.
Label Cutting Production
POLAR label cutting solutions will also see some improvements in time for drupa 2012. The speed of the DC-11 die cutting system increases from 16 cycles/minute to 20 cycles/minute, for example, and a belt conveyor system is now available following the integrated banding unit. The DCC-10 system adds a LT-N loading table and improves die cutting for applications with a cardboard underlayer. The square-cut label system SC-10 adds an integrated airboard lift and can incorporate a BM-105 multistation bander. The SC-25 square-cut system adds log-banding capability for applications or fulfillment requiring larger stacks of labels.