This Nagel Watkiss – Erns Book Binder is a book binding machine — sometimes referred to as a booklet maker or saddle stitcher — designed to collate, fold, and staple printed sheets into finished booklets and brochures in a single automated pass. Nagel is a well-established German manufacturer with a long history of producing finishing equipment for the print and publishing industries, and this machine combines a Watkiss Vario suction air gathering tower with a Nagel Foldnak 8 booklet stapler to deliver a complete inline binding solution.
The gathering section features eight stations with high-pile feeding of up to 8 cm per station, assisted by a squeegee bar to ensure reliable sheet separation. The system includes automatic detection and control for missing sheets, double sheets, paper jams, and empty stations, making it well suited to unattended or high-volume production runs. The unit handles paper sizes from a minimum of 130 × 160 mm up to a maximum of 364 × 520 mm, across a paper weight range of 40 to 300 g/m². Collection output reaches up to 4,000 sets per hour.
The inline Nagel Foldnak 8 stapling unit processes booklets in a single pass with automatic release and a smoothing device for a clean finished result. It includes magazine and missing-staple control, a built-in counter, and a movable staple turner. A notable feature is that staple and ring staples can be used within the same stapling head, and format changes take approximately one minute. The stapling head accepts two heads as standard, with an option to expand to a maximum of four, and head positions are fixed at 30 × 50 × 80 × 50 × 30 mm. No adjustment for paper thickness is required.
Compatible paper formats include DIN A5, A4, A3, A3+, and SRA3, as well as any intermediate sizes. Finished brochure formats run from DIN A6 through A5 to A4 and intermediate dimensions. Cover stock up to approximately 300 g/m² is supported, and booklets of up to 100 pages (based on 80 g/m² paper) can be produced. Clamp types are ring clamps Ri 26/6, with compatible staples in 26/6, 26/8, and 26/8S. On-line corner stitching is included, as is on-line block stapling for runs of up to 40 sheets.
Production output for finished brochures reaches up to 2,000 units per hour. Sheet delivery is electric with an adjustable stroke. The machine runs on a 230 V, 50 Hz supply and draws 300 W. It is offered used, manufactured in 1999, and is currently located in Germany.
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