This Heidelberg Stahlfolder K- is a used folding machine — sometimes referred to as a paper folder or sheet folder — designed to fold printed sheets into a wide range of formats for booklets, brochures, mailers, and other finishing applications. Heidelberg is one of the world's most recognised names in print finishing and sheetfed offset equipment, supplying commercial printers, packaging operations, and binderies globally with machinery built to high production standards.
This example dates from 2009 and is currently located in Germany, where it remains in active production use, with availability confirmed from October 2025.
The machine is configured with four buckle plates and two knife folds, giving it the flexibility to handle a broad variety of fold patterns, from simple parallel folds to more complex combination sequences. An additional side fold buckle unit extends this capability further, allowing for lateral folds that expand the range of finished formats the machine can produce.
Sheet feeding is handled by a PFH-82 pallet feeder, which enables high-capacity loading from a full pallet stack and supports continuous, uninterrupted production runs. The main folding work is carried out by the BCUH-78 folding unit. Two delivery systems are included: an SBP 66 delivery and an SPH-70 delivery, the latter refurbished or replaced in 2018. A mobile knife unit, the KB.1-52, dating from 2007, is included alongside a roller unit and a vacuum pump, the latter supporting controlled, consistent sheet transport through the machine.
The combination of a pallet feeder, dual deliveries, extended knife and buckle fold configuration, and the supplementary mobile knife unit makes this a well-equipped production folder suited to medium- to high-volume finishing environments.
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