Saddle Stitchers — A Stitch In Time
"If stitches run out or a booklet is missed, they can be disposed of in a print overrun," Steinke states. "But in an on-demand environment—particularly in some cases where the books are personalized—it becomes an important issue."
Duplo USA will be unveiling its new System 4000 bookletmaker at Graph Expo next month. The System 4000, first shown worldwide at DRUPA earlier this year, will be displayed in-line with Duplo's new high-speed collating system. This system will demonstrate speeds up to 4,200 booklets per hour.
Maximum rated speed has always been a hot-button topic from both a manufacturer and end-user standpoint. William Duff, president and CEO of Hohner Stitching Products, points out that optimum speed can be achieved only under ideal conditions, such as use of a highly skilled operator and the correct alignment of the planets. Absence of such variables "decrease [the operator's] chances of achieving maximum rated speed long before those signatures ever hit the pockets," Duff states. Plus, as the machine ages, it loses a step, speed-wise. Components will wear and fail sooner when the unit is run at top speed.
What should printers look for in a stitcher, then? Efficiency is the answer, according to Duff.
"Reduce setup times, reduce maintenance intervals and improve technology in the stitching process itself," Duff says. "Product in the wrappers at the end of a shift is where you test the metal, and as equipment manufacturers committed to our customers, we continue to innovate to improve on our portion of the process."
Hohner has recently unveiled its HSS-18 Selective Stitch system, which represents a major change in stitcher head designs. The system, tabbed by Heidelberg as standard equipment on its new ST-400 and SP-870 units, replaces Hohner's Model 70/20, Bostich 18D or G20.
Duff has no doubt that there is a successful future awaiting the efficient and economical saddle stitcher.