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Casing-in with Prä machines


Casing-in machine

The PräLeg is a casing-in machine for casing-in books in bookbinderies manufacturing short-run and widely varying size books, as well as for series production in industrial bookbinderies and printing works.

The PräLeg is a casing-in machine for books. With its well-coordinated sequence control, the PräLeg  can be used for casing-in within bookbinderies manufacturing short-run and widely varying size books, as well as for series production in industrial bookbinderies and printing works.
The machine operates on the well-known principle of one blade for holding and transporting the book block between the gluing units. Largely without a need for format settings, small and medium-sized editions can be processed just as easily as special-sized and constantly-changing formats.
Control of specific procedures at the gluing stage and subsequent transport of the block to the case is controlled by touchscreen. This facility can be used to adapt the gluing process to a variety of block types (e.g. photo albums) and to different kinds of backliner.
The glue feed into the gluing units is controlled by pumps.
To achieve a pefect viscosity of the glue, an automatic water feed is integrated into the machine. Water can be added to the glue in intervals either automatically or manually.
The machine also has an automatic cleaning system which is activated by touchscreen.

The machine has two separate gluing units for applying glue to the two end papers of the book block. The glue is fed into the gluing units by pumps.
At the start of the operating cycle the blade is located in the upper position. A book block is opened in the centre, placed on the blade and pushed against the rear limit stop. The casing-in cycle is next triggered. The blade drives downwards between the gluing units.
While the blade is travelling downwards the book case is placed in the case mountings. It is automatically centred by means of these mountings. A back stop ensures that the upper and lower cover-rim overlaps (or squares) are equal.
When the blade has reached the gluing position the gluing units come together pressing briefly against the book block in the area of the joint. The machine control ensures that the spread of glue is slightly thicker in the joint area. The additional glue applied to the joint can be regulated independently of the normal spread thickness, thereby adjusting the glue level to suit the overlap of mull. The length of the additional gluing surface can also be set via the control unit, so that even widely overlapping mull represents no problem.
After the pressing of the rollers against the joint, the blade begins to move upwards and glue is applied to the two endpapers. The speed at which the blade travels matches precisely the rotation of the gluing rollers. This ensures the level of glue aplied to the end papers is even. At the end of the cycle the blade guides the book block into the case, coming to a halt in the upper position. This process is supported by pressing the case onto the book block. The book block and the case have now been bound to a book. This book is next taken from the blade and is pressed in a pressing and joint-setting machine (e.g. our PräForm or PräForm Pro).
With its automatic cleaning system, the machine may be cleaned easily and quickly after use.

  • Special device for processing soft and/or very small covers or as of 60 mm book block width
  • Barcode reading system - to secure the matching of book block and case. When the codes match, the casing-in process is activated automatically.

The PräLeg is equipped with a RJ45 network connector. After connecting a computer or notebook with internet access our technical service department may evaluate error logs may provide quick and targeted assistance in case of a machine failure.

  • Floor space: 104 x 67 cm   
  • Height: 185 cm    
  • Weight: approx. 325 kgs
  • Air supply: 6 bar - 6 l/m    
  • Power supply: 230 V / 50 Hz / 0,6 kW
Book sizes:
  • Block height: 80 - 450 mm  
  • Block width: 110 - 450 mm
  • Block thickness:  2 - 80 mm
  • Output: 200 - 300 pcs / hour


no setup time

easy operation via touchscreen

built-in water feed

automatic cleaning system

adjustable glue application incl. backliner function

small and soft cases may be processed with the optional special device

increase of process reliabilty with optional barcode system

perfect in use in combination with the book press and joint-setting machine PräForm


book blocks with flat and rounded backs

photo albums

layflat book blocks

foamed book cases

very small and soft book covers (with optional device)

integral cases (cardboard cases)

Logo Schmedt

Casing-in with Prä machines

Any question on this machine?

International dealers

How to reach us

Service and orders

040 - 734 744-0
International: +49 40 734 744-0

Opening hours
Mon -Thu: 8 am - 5 pm
(Pickup time until 4.30 pm)
Fri: 8 am - 3 pm
(Pickup time until 2.30 pm)

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