K780-F Automatic Book Folding Machine

The K780-F Automatic Book Folding Machine is a heavy-duty buckle & knife combination folding system purpose-built for high-volume book printing houses, perfect binding facilities and commercial print finishing plants. Featuring a gantry pallet feeder and hybrid folding architecture, it delivers uninterrupted production capacity and precision fold registration for book signatures, catalogs, brochures and multi-page documents in 24/7 industrial environments.

Buckle & Knife Dual-Station Folding System

Combining a multi-plate buckle folding station and a precision knife folding station in a single integrated frame, this combination folder executes both parallel folds and right-angle cross folds in a single pass, eliminating the need for secondary handling and boosting overall production efficiency. The buckle station handles all standard parallel fold patterns, while the knife station delivers accurate perpendicular folds to form multi-page book signatures ready for binding lines.

It supports a minimum knife fold size of 100 × 65 mm and processes paper stocks ranging from 28 to 200gsm, accommodating sheet sizes from 150 × 150 mm up to 780 × 1200 mm. Operating at a maximum line speed of 210m/min, it delivers consistent fold registration accuracy and sharp, uniform creases across long production runs, meeting the strict quality standards of book publishing and commercial printing industries.

Gantry Pallet Feeder & Inline Press Integration

Equipped with a gantry pallet feeder with a maximum paper pile height of 1200mm, the machine accepts full-pallet loading for extended uninterrupted production, drastically reducing material reloading downtime and operator physical strain. The gantry feeding design enables direct inline feeding from printing press delivery systems — full pallets of printed sheets can be transferred directly from the press delivery to the folder feeder via pallet truck, creating a fully automated print-to-fold workflow that eliminates manual sheet handling and improves overall line efficiency.

The vacuum suction feeding system ensures stable, misfeed-free sheet transport across a wide range of paper weights, while integrated double sheet detection prevents misfeeds and reduces production waste, maintaining consistent output quality for high-volume book and catalog jobs.

Intelligent PLC Control & Industrial-Grade Build

Operated via a PLC touchscreen control system with job memory functionality, the machine stores hundreds of fold parameter presets for fast job changeovers and minimal setup time. Its heavy-duty industrial frame and helical gear drive system minimize vibration at high speeds, ensuring long-term reliability and low maintenance requirements in continuous production environments.

CE certified for safety and built to industrial-grade manufacturing standards, the K780-F supports a full range of fold patterns including half fold, tri fold, accordion fold, double parallel fold, cross fold, gate fold and multi-page signature fold. It is the ideal folding solution for producing book blocks, softcover books, catalogs, magazines, instruction manuals and brochures, and can be seamlessly integrated with perfect binding, saddle stitching and other downstream finishing lines.