Libra 800 is the only fully automated and integrated system to produce one unique book at a time, allowing variability from one book to the next in dimension (footprint), thickness, and cover types (soft cover, false cover, cover with flaps).
The ultimate finishing experience for short runs and book of one production.
Libra 800 assembles book blocks, and then either perfect binds the book blocks with soft covers, or adds false covers in preparation for offline case binding. As the average book run is being dramatically reduced, Libra is the most suitable solution to support short run and book on demand production. With Libra it’s possible to reduce to zero the stocks of each copy and the risk of unsold inventory.
Libra offers the opportunity to reach new markets where short runs are mandatory, such as manuals, limited editions, new authors publishing, art books, research papers, republishing, financial reports and more: small volume publications become an opportunity.
Libra is a unique inline or near line solution, with input from roll (one or two paper input) and/or from pre-assembled book-blocks for fully automated book on demand production. With a productivity up to 800 books per hour, Libra provides complete flexibility and efficiency for short run, personalized books and book of one production.
Technical Specifications
Specifications
Productivity
Up to 800 books/hr
Feeding
Continuous form or pre-assembled book block
Web width
Max 660 mm (26”) with Slit&Merge, max 775 mm (30.5”) with StreamFolder
Finished books
Width: 100 – 300 mm (3.9" – 11.8"), Height (spine): 130 – 305 mm (5.1" – 12")
Book thickness
2 – 60 mm ≈ 0.079 – 2.36"
Paper weight
65 – 130 gsm | 45# – 90# text
Soft cover
Width: 280 – 680 mm (11" – 26.77"), Height (spine): 145 – 320 mm (5.7" – 12.6")
False Cover Sheet Weight: up to 150 gsm (55# cover), Soft Cover: max 250 gsm (94# cover)
Imposition
1- up & 2- up, 3-up & 4- up
Modular System Options
The Zero Speed Splicer u55
Automatically changes input rolls, thus eliminating printer stoppages for roll changes and keeping your printer running at full speed and full productivity. Auto-queuing option allows switching between two different papers on demand.
Unwinder with Slit Merge & Dual-Web Cutter
For 20” or 30” paper rolls printed in 2-up ready for binding.
LIBRA VB Variable Binder
The assembling & mixing station allows two books to be produced at the same time. Book blocks are either perfect bound with soft covers (standard or with flaps), or false covers (end sheets and gauze) are added in preparation for offline case binding. Covers matching the book-blocks are glued with PUR or Hot-MELT technology depending on the configuration selected.
Cooling Tower
PUR glued books ready for trimming cool up to 12 minutes before entering the three-knife trimmer for automatic on-the-fly cut to size finishing. The specially designed long tower path allow glue cooling after binding, thus avoiding book damage during the trimming stage.
Libra VT Variable Trimmer
Three-knife trim a broad range of book sizes and thicknesses without operator adjustments. A fully automated on‑the‑fly system reads a barcode printed on each book cover to cut every single book with no operator intervention. A special FRONTAL TRIMMER is available as an option on the Libra VT system for books with flaps finishing.
Roll to StreamFolder
4/6 page signatures, stacked and separated, merged to one stack. Z-fold signatures for increased reliability, superior book quality and no page curl.
Sheet-Fed B2 Input Channel
The sheet-fed Libra 800 B2 dynamic book block cutting and gathering system can process paper up to 50x70 cm (19.7”x27.8”), B2 format. The system is extremely versatile and can automatically handle the parameters for various formats, ranging from A5 to 17 x 21 cm (6.7”x8.3”) and from 21 x 21 cm (8.3”x8.3”) to A4, both in landscape and album format. Multiple input channels can be configured for improved performances and further variability.
Multiple Soft Cover Maker
With this solution, up to three inputs are configurable. The system selects the proper channel and automatically trims and scores the book cover to properly match the book-block size inside the central binding unit.
Exit Conveyor
Finished trimmed books are diverted on different conveyor levels according to easily adjustable parameters. Book output may be arranged by book type, dimensions or order ID.
