Multi-Flexi with Grauel!
On K-2007, Hall 4 Booth D50 Grauel presents it's new Multi-Flexi-Machinemodell that can print on round as well as on flat products with offset-, flexo- or rototative padprint. Multi Flexi!
Functional specification: The handling heart of the machine  is the Grauel standardised handling system called LCS (linear conveying system). The LCS is a solid base for all kinds of printing and assembly applications. The chain has a very precise repetetive positioning within a few hundredth of a mill. The chain is driven by a servo drive which enables indexing handling for round products or continuous motion handling for flat products.
To achive a good printing quality and adhesion, the producs are first pre-treated with flame or corona. The pre-treatment heads are mounted on a pneumatic slide that moves up & down. The products are turned during the treatment process, guaranteeing a uniform treatment.
And then, the products are printed with a Grauel printhead type R4SA/120-125-3F-(BW240). This printhead has a maximum printing width of 125 mm and a printing length of 260 mm. The ink chairs can be removed  easily for quick change over times. Further, the printing pressure between the printing roller and the cliche roller has central adjustment. On the base printing head different offset, flexo or padprint inkchairs can be mounted. Afterward the products are UV cured.
Contact:
Printing heads & Machines:
Grauel International bv
Grasbeemd 2
5705 DG Helmond - Niederlande
T: +31 492 565 010
I: www.grauel.nl
E: grauel@grauel.nl
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New design,
improved access
 Especially for the large printing widths Grauel designed an improved dry offset printing unit. The new design is based on one in-inking roller and one oscilating roller only. Pressure and allignement between these rollers can be adjusted easily. Due to the improved design the rollers can be taken out very quickly. This way the cliche cylinder is easy to access! Questions? Just give us a call on +49 30 34 99 37 -0
Flame or Corona ?
 
As often, the choice "flame or corona" depends on more then one factor only. Grauel integrates both processes on it's machines and can therefore give an objective statement: " We normally use flame pre-treatment when the substrate is transported at high speeds or if we work with greasy or not freshly moulded parts" says Robert Rückert, printing engineer at Grauel. "Flames are simply more agressive". A disadvantage however is the heat and the dealy time. Corona, especially with small heads can be very effective too and is easy to integrate. The Ozone must be exhausted. Do you need advice? We would be happy to run a test for you in our printing lab.
Upcoming Shows
Medical Plastics 02 - 04 October, Copenhagen
K-2007 24 - 31 October, Düsseldorf
MEDTEC 2008 11 - 13 March, Messe Stuttgart
Contact:
Spare parts, Clichés & Inks:
B. Grauel GmbH
Reuchlinstrasse 10-11
10553 Berlin - Deutschland
T: +49 30 34 99 370
I: www.grauel.de
E: grauel@grauel.de
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