Search here
Precision, meticulousness, reliability – these are attributes that the management and production team at folding carton manufacturer Boldt GmbH consider inextricably linked to the company's reputation. It is therefore no surprise that it took extensive testing and experience before Managing Director Michael Butzmann and Production Manager Norman Meyer decided to equip their Heidelberg CX 102/5 plus coating machine entirely with Duraprint rollers from Sauer.
The Boldt company in Isernhagen manufactures folding cartons for well-known companies in the pharmaceutical, cosmetics, and stationery industries. Production volume is approximately 100 million folding cartons per year. The 40 employees primarily work in two shifts and print exclusively using conventional methods, mostly with special colors.
Nine years have now passed since production manager Meyer first took a look at Sauer and its Duraprint rollers. In April 2013, he ordered a set of Duraprint rollers for testing – for just one of the five printing units. Why only one? The questions of precision and reliability resurfaced. The new rollers were to prove their worth first. And Norman Meyer was monitoring their quality very closely. Until autumn 2013, he operated a mixed system: using rubber rollers from a competitor of Sauer in printing units 1, 2, 3, and 5, and Duraprint rollers in printing unit 4. Of course, there were also financial reasons that necessitated such a long testing phase. The nearly new rubber rollers were to "earn their keep" before being disposed of.
This lengthy testing phase also encouraged Meyer to test a new generation of rollers from a competitor of Sauer. However, this phase was short-lived, as this roller did not meet the requirements of Boldt GmbH.
In 2019, after more than five years of operation in high-quality packaging printing, H. Meyer considered purchasing five new roller sets for the entire machine and once again turned to DURAPRINT. When asked about the reasons, Norman Meyer doesn't have to think long. It's primarily...
Two reasons that convinced him over time:
∙The unusually short washing times
∙The high dimensional stability
Especially in packaging printing at Boldt GmbH, numerous job changes –
involving 10 to 20 washes – are the daily standard.
Color changes from dark to light are very frequent. In conventional printing with
rubber rollers, this means up to five washes per color change. Meyer
pulled out all the stops to shorten the washing cycles – among other things, he used
plastic doctor blades to remove as much ink as possible during the first cleaning pass
.
Looking at inking unit 4, the differences became clear to him. Here, the
Duraprint rollers were running, which
required a maximum of two washes even with problematic color changes.
A second argument in favor of the Duraprint rollers
only gained traction for production manager Meyer over time: the dimensional stability of the rollers.
They are adjusted for the first time during installation, and readjustment has
been unnecessary ever since.
Other positive attributes of the Duraprint rollers, such as the precise
print quality and short setup time,
also made a very good
impression on the management and production team at Boldt GmbH. Ultimately, however, it was primarily time and cost that convinced them
to rely exclusively on Duraprint. In addition to the time saved during washing,
there is also the material saving. The need for detergent
is reduced to less than half the usual amount.
German German
English