The Nagel SP Plus Book Binder is a used book binding machine, designed to give saddle-stitched booklets the appearance of a high-quality perfect binding by squaring and pressing their spines. Ernst Nagel is a well-established German manufacturer with a long-standing reputation in the finishing and post-press industry, producing equipment widely used in print finishing operations.
A key benefit of the spine-pressing process is that the treated booklet spine becomes printable, adding both a professional aesthetic and practical value. Squared spines also make stacking, storing, and packing considerably easier and more space-efficient, as the booklets lie flat without the tendency to spring open or shift — a common issue with conventionally stitched brochures.
The SP Plus is notable for its flexibility in deployment. It can be used offline as a mobile, standalone unit in a post-press workflow, or integrated online directly behind several compatible folder-stitcher models, including the Foldnak 8, Foldnak 80, and Foldnak 100, where it functions as a fast and reliable inline solution. This range of integration options makes it suitable for a variety of production environments and throughput requirements.
In terms of capacity, the machine handles booklets of up to 30 sheets at 80 g/m², with a maximum format size of 350 mm × 250 mm. When operated in offline mode as a standalone unit, it is capable of processing up to 1,200 booklets per hour in a single pass. The machine is located in Germany and is offered in used condition.
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