PräLomo • Book block rounding device
for book blocks with rounded spines
€2,415.00*
In stock, deliverable at short notice
19% VAT:
The PräLomo is a machine to round the back of book blocks. 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.
Process
- At first, the heating of the device is switched on. The heating process takes approx. 5 - 10 minutes.
- 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 hand lever is pressed a few times until one half of the book back is rounded. While moving the hand lever with one hand, the book block is held back against the rounding bar with the other hand. Then the book block is turned and the other side is rounded in the same way. The power of the rounding plate is adjusted by the hand lever. The stronger the lever is pressed down, the stronger the block will be rounded.
- PräLomo only rounds book blocks bound with dispersion glue (cold glue). Blocks bound with hotmelt may not be rounded as the heat would "reactivate" the hotmelt. The rounding of PUR-bound blocks may only be possible after intensive testing and within a very short time frame after binding.
Dimensions | |
Block height (mm): | 0 - 320 |
---|---|
Block thickness (in mm): | 8 - 80 |
Depth (mm): | 440 |
Height (in mm): | 580 |
Weight: | 23 kgs |
Width (in mm): | 440 |
Output | |
Output (pcs/h): | up to 120 |
Output level: | Level 2: 101 - 200 pcs/h |
Format range | |
Block height (mm): | 0 - 320 |
Block thickness (in mm): | 8 - 80 |
Connectors | |
Electric power: | 300 W |
Power supply: | 230-240 V / 50-60 Hz |
Other properties | |
Category: | Book Block Making, Finish, Emboss, Personalise |
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Advantages
Since the PräLomo has only a few adjustment options, it is very easy to use. For example, the table top can be adjusted very quickly to the block thickness and the force of the rounding plate is controlled by a hand lever. The heated and movable rounding plate ensures fast and even rounding.

The operation of the machine is extremely simple and allows anyone to operate it.
The heated and movable rounding plate ensures fast and even rounding.
The table top is very quickly adjustable to the block thickness.
The power of the round plate can be controlled via the hand lever.
The operation of the machine is extremely simple and allows anyone to operate it.
The heated and movable rounding plate ensures fast and even rounding.
The table top is very quickly adjustable to the block thickness.
The power of the round plate can be controlled via the hand lever.
Overview of our rounding machines
The PräLomo is our entry-level version for rounding book blocks. The PräLomo Pro has an extended range of functions and makes it quicker and easier to give books a round spine. The PräRund is used for rounding the spine of the book cover. Discover all our machines for rounding books below: