Lightning Fold 8336B + 33KF is a complete creasing, perforating and folding system for professional finishing. The system consists of the powerful 8336B creasing machine and the separate 33KF knife folding unit.
The system allows high-quality processing of finished prints and eliminates inefficient set-up time. It features a 100 mm vacuum feeder, automatic sheet measurement, a 7″ colour touch screen, interchangeable creasing and perforating tools and the option to add up to 4 strike perforation units for partial perforation in both directions.
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What is the Progressive function
The Progressive function gradually shifts the crease position of individual sheets according to their order in the book block. The precisely controlled change of crease position creates an optimal spine shape once the publication is assembled, which improves book opening, reduces stress on the binding and limits the risk of spine cracking. With Progressive activated, each sheet is creased in a slightly different position, so in standard bindings the publication lies flatter without damaging the spine.
The Progressive function also allows a "V" profile to be created which, after binding, forms a square back. The result is a professional-looking book that opens almost flat and is more comfortable to read and handle.
| Model | Lightning Fold 8336B + 33KF |
| Paper size (min.–max.) | 140 × 160 mm – 330 × 650 mm |
| Paper weight | 100–350 gsm |
| Paper type | Chromo (coated), laminated, UV coated, etc. |
| Loading capacity | 100 mm |
| Crease width | 1.0 mm standard; 0.4 / 0.6 / 1.2 / 1.4 mm optional |
| Accuracy | ±0.2 mm |
| Speed | 6,000 sheets/h (A4 / half fold) |
| Fold types | 7 types (half fold, letter fold, Z-fold, offset fold, gate fold I, gate fold II, double half fold) |
| Creases/perforations per pass | 32 (without fold) |
| Control and display | 7" touch screen |
| Special features | Book cover mode, Progressive |
| Optional tools | Cross perforation bar (6/8/12/24/52 TPI) Slitter, linear kiss cutter, scorer Linear perforator (8/12/24/48 TPI) Linear partial perforator (8/12/24/48 TPI) |
