PräLomo Pro • Pneumatic book block rounding machine
for book blocks with rounded spines
The PräLomo Pro is a pneumatic machine to round book blocks in a wide size range. It rounds assorted book blocks (with frequently changing block thicknesses) as well as series of blocks. The device consists of a basic frame with a table that is adjustable in height and a mobile rounding bar with which the rounding of the book block is achieved. This rounding bar is heated. The temperature can be adjusted progressively by a temperature control. Thereby the fan-bound back is heated during the rounding process. The book block may then be rounded much easier and the rounding is even. The table plate is adjustable in height in order to adapt it to different block thicknesses. The thickness is adjusted with a locking lever on the left side of the machine. Moreover, the machine has a built-in heating plate on the right side. The book blocks are piled into the plate for heating up prior to rounding in order to soften the fan-bound backs.
Process
- At first, the heating of the device is switched on. The heating process takes approx. 5 - 10 minutes. It is recommended to arrange the book blocks to be rounded according to their thickness and to put the first blocks into the heating plate.
- Now the block thickness of the first book block is adjusted with the locking lever.
- The book block is placed on the table and pushed against the now vertically standing rounding bar with its fan-bound side.
- Now the foot pedal is pressed a few times , until one half of the book back is rounded. While activating the pedal, the book block is held back against the rounding bar with both hands. With the pneumatic system, the power of the rounding plate is adjusted by foot pedal. The stronger the pedal is pressed down, the stronger the block will be rounded. With a little practice, rounding is very quick and the rounding of the block becomes very even.
- Then the book block is turned and the other side is rounded in the same way.
- The PräLomo Pro cannot only round book blocks that have been bound with dispersion adhesive (cold glue). Also book blocks bound with hotmelt can be rounded by means of the digital temperature control of the heating plate which which the softening point of the hotmelt glue may be defined exactly. without "reactivating the adhesive. Rounding PUR-bound book bocks is only possible after extensive tests and also only in a very narrow time frame.
Dimensions | |
Block height (mm): | 0 - 520 |
---|---|
Block thickness (in mm): | 8 - 80 |
Depth (mm): | 480 |
Height (in mm): | 1140 |
Weight: | 87 kgs |
Width (in mm): | 480 |
Output | |
Output (pcs/h): | 150 |
Output level: | Level 2: 101 - 200 pcs/h |
Format range | |
Block height (mm): | 0 - 520 |
Block thickness (in mm): | 8 - 80 |
Connectors | |
Air pressure supply (bar): | 6 |
Electric power: | 430 W |
Power supply: | 230-240 V / 50-60 Hz |
Other properties | |
Category: | Book Block Making, Finish, Emboss, Personalise |
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Below you can see questions that other customers have asked about this product. Do you have a question of your own? Then feel free to ask us using the button below. You decide whether your question may be published.
Mich würde interessieren auf wie viel Grad die Wärmeplatte einen Buchrücken erhitzen kann?
120 Grad sind kein Problem, es kann auch noch eine höhere Hitze erreicht werden.
Ihr Team-Schmedt
Advantages
The PräLomo Pro is our most advanced machine for rounding book blocks. It is very easy to use and with a little practice any user can produce perfectly rounded books. The temperature can be adjusted using the controls on the table. Likewise, the desired block thickness can be quickly changed on the tabletop. All in all, all common formats can be processed. The force of the rounding plate is controlled by a foot pedal, so that depending on how the foot pedal is pressed, the rounding plate exerts pressure on the book block. A heat plate is used to warm up the perfect binding to prepare the spine and increase its flexibility for the processing in the machine.

The operation of the machine is extremely simple and allows anyone to operate it.
The heated and movable rounding plate makes fast rounding possible.
All common formats can be processed on the PräLomo Pro.
The force of the rounding plate and thus the rounding effect can be controlled with the foot pedal.
The table can easily be adjusted to the block thickness.
The attached heating plate is used to warm up the adhesive binding before rounding.
Hotmelt-bound books can be processed using the digital temperature control.
The operation of the machine is extremely simple and allows anyone to operate it.
The heated and movable rounding plate makes fast rounding possible.
All common formats can be processed on the PräLomo Pro.
The force of the rounding plate and thus the rounding effect can be controlled with the foot pedal.
The table can easily be adjusted to the block thickness.
The attached heating plate is used to warm up the adhesive binding before rounding.
Hotmelt-bound books can be processed using the digital temperature control.
Overview of our rounding machines
The PräLomo Pro makes it possible to give your books a round spine in a particularly quick way. The small PräLomo, on the other hand, is more compact, less expensive and has slightly fewer functions. The PräRund is used for rounding the spine of the book case. Discover all our machines for rounding books below: