PräRund | Rounding machine for book cases

for book covers with round spines

Product information "PräRund | Rounding machine for book cases"

The PräRund is a device specially designed for rounding the spine of book covers. It allows any desired rounding of spine widths between 10 and 120 mm. As no adjustments for differing formats need to be made, more than 360 book covers with different formats and spine widths can be processed per hour. The operation of the PräRund is extremely simple and can be learned within a very short time even without prior knowledge.

Process

  1. After a short period of time for heating up (2 - 3 minutes), the PräRund is ready for operation.
  2. The book case is placed on the table in such a way that it is parallel to the ledger lines of the table and with their back on the built-in rubber base.
  3. To start the rounding process, the roller is lowered onto the spine by the foot-lever. The roller is now moved back and forth (from joint to joint) a few times by means of a hand lever. During this process, the foot-treadle remains pressed onto the hollow as this pressure determines the kind (radius) of rounding. The stronger the pressure on the foot lever, the more the back is rounded. The flexible rubber pad prevents the back from breaking and guarantees an even rounding over the entire length. Moreover, the pressure put on the spine during the rounding process prevents the spine insert from detaching from the cover material.
Properties of "PräRund | Rounding machine for book cases"
Dimensions
Depth (mm): 720
Height (in mm): 1250
Weight: 30 kgs
Width (in mm): 600
Output
Output (pcs/h): 360
Output level: Level 3: more than 200 pcs/h
Format range
Spine length (mm): Up to 600
Spine width (mm): 10 - 120
Connectors
Electric power: 200 W
Power supply: 230-240 V / 50-60 Hz
https://www.schmedt.de/ww2000/pdf/e-praerund.pdf
https://www.youtube.com/watch?v=W96xkzv0LOs

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Advantages

No prior knowledge is required to operate the PräRund. No additional settings are necessary for different formats. A flexible rubber backing prevents the spine from breaking and thus guarantees an even rounding. Auxiliary lines help to align the cover easily. The integrated thermostat allows the temperature to be adjusted to different materials.

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1+
× Simple operation

Very simple operation means that no previous knowledge is required to work with the PräRund.

2+
× Flexible rubber base

A flexible rubber base prevents the back from breaking and guarantees a beautiful rounding.

3+
× No format settings

Different formats can be rounded without further settings.

4+
× Back insert is pressed on

During the rounding process, the back insert is pressed on.

5+
× Guide lines for alignment

Guide lines help to align the book case in a simple, and exactly centred way.

6+
× Adjustable thermostat

The temperature can be adjusted to different materials.

× Simple operation

Very simple operation means that no previous knowledge is required to work with the PräRund.

× Flexible rubber base

A flexible rubber base prevents the back from breaking and guarantees a beautiful rounding.

× No format settings

Different formats can be rounded without further settings.

× Back insert is pressed on

During the rounding process, the back insert is pressed on.

× Guide lines for alignment

Guide lines help to align the book case in a simple, and exactly centred way.

× Adjustable thermostat

The temperature can be adjusted to different materials.

Overview of our rounding machines

The PräRund is used to round the book cover. 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. Discover all our machines for rounding books below:

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