ANDOVER, MAINE— Standard Finishing Systems announced the release of the Horizon iCE StitchLiner Mark IV Saddlestitcher which combines signature scoring and folding, saddlestitching, and three-knife trimming into a single system. The Mark IV can run at speeds of up to 6,000 booklets per hour for A4 portrait applications and 5,300 booklets per hour for A4 landscape applications. These production speeds can be maintained even when the system is set to variable thickness mode or when cover sheets are being inserted. The Mark IV can run continuously even when errors like a dropped stitch or sheet misalignment are detected by automatically rejecting the booklet to an eject tray without operator intervention, improving system up-time. On the Mark IV, stitch length, balance adjustment, and thickness settings can all be changed automatically from booklet to booklet during operation for true variable booklet production with consistent quality. Across all booklet sizes, the system’s scoring function reduces cracking on the spine and allows for a tighter fold. The sheet-alignment section features four-directional jogging for a tighter jog and more accurate alignment across stocks. Improvements to the Mark IV’s transport system also allows for stable sheet transport across substrates, even for coated and lighter weight sheets.