Nordson Powder coating of high-quality enclosure User Manual
Powder coating of high-quality enclosure
for technical systems
Saving costs with dense-phase technology to
increase quality and flexibility
de Crignis GmbH, Germany
Performance by design
In-house powder coating of high-quality
enclosure for technical systems
to minimize these costs and the dependence on external partners,
while at the same time making our own production even more
flexible, the de Crignis management decided to install their own
powder coating system in-house.
The solution: in-house powder coating
The company de Crignis has powder coated externally the finishes of its high-quality enclosures for technical systems for years. The
intention for having its own system was to make production more flexible and save time and costs. In 150 years of company and family tradition, de Crignis Blechverarbeitung GmbH has grown into a well-known system supplier of equipment enclosures. Their advanced machinery assists the motivated employees in all steps of metal processing - only the finishing has always been entrusted to
external specialists.
During the search for a suitable solution, CS Oberflächentechnik,
Nordson‘s representative for the southern part of Germany, was
soon found. They offer their customers consulting, planning and
construction of a powder coating system all from one source.
„CS Oberflächentechnik was a really lucky choice for us because
of their experience with all available powder coating technologies
as well as with systems of any size“, says Mr. Kleiner. „And the
close and well-rehearsed cooperation between them and Nordson
made it possible that the installation was completed only four
months after the order was placed and we were able to start
testing the operation with our system!
De Crignis installed Nordson’s ColorMax
Spectrum
booth is designed to provide reliable powder containment while
also ensuring soft airflow in the spray area. The booth floor is
made of the patented composite material “Apogee” and the
AirWash automatic floor cleaning system keeps the powder
overspray in the booth to an absolute minimum. The ColorMax³
fast color change powder coating booth is designed for fast,
thorough powder contamination, and easy color changes within
minutes and is equipped with eight Encore
coating guns. These are controlled by reciprocators for maximum
efficiency and automatic coating.
The Spectrum HD Powder Feed Center, in combination with the
HDLV (“High Density, Low Velocity”) pumps of the Encore HD
spray system, ensures highly efficient supply of powder. The
complete powder management and application solution is
designed for convenient powder handling with low operator and
maintenance effort, so the powder feed center plays a significant
role in the efficiency of the entire system.
®
HD powder feed center and advanced controls. The
®
3 booth with a
®
HD automatic powder
“After one year of in-house powder coating in single-shift operation,
we are still in a phase of recording data, but we can already safely
note three interesting observations as interim results: In terms of
quality, throughput time and costs, our expectations have even
been far exceeded,” says Kleiner, summarizing his experience..
“The dense-phase technology is absolutely convincing for us in
terms of application efficiency and coverage, and even when
coating corners and recesses, we achieve a superior coating
qu a li t y.”
Single coatings are usually applied to layer thicknesses between
60 and 80µ and achieves uniform high coating quality and film
thickness without reworking. Particularly demanding enclosures,
such as parking meter machines, are double coated to withstand
The challenge: Outsourcing requires high logistics effort
In Germany, almost anyone who parks at a parking meter, then
deposits coins or money into the automatic acceptance point is
probably interacting with a machine enclosure made by de Crignis.
“With the move to our current location in Augsburg, Germany, we
made the step from sheet metal processor to system provider for
sophisticated enclosures around 20 years ago,” recalls Herwig
Kleiner, Managing Director at de Crignis. “Since then, we have had
the most modern punching, bending and laser technology at our
disposal and since 2007, we have also had an extremely efficient
welding shop.”
For most device enclosures, the finishing is an essential part of their
functionality: parking ticket machines are exposed to the weather
for many years, special demands are made on the powder coating
of medical devices, and reverse vending machines must withstand
high mechanical specifications. To ensure that the external
enclosure still protects the technology installed in them for a long
period of time, both the coating materials and the coating processes
are engineered for the intended end use. “Until mid-2018, we had
the coating done externally,” explains Kleiner. “These steps were
outsourced to specialists, but the logistical effort was still enormous.”
Preparation for transportation, packaging, and receipt of the finished
coated parts cost us almost a five-figure sum every month! In order
Powder coating of high-quality enclosure for technical systems | 32 | Powder coating of high-quality enclosure for technical systems
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