EDITED BY RÖSLER OBERFLÄCHENTECHNIK GMBH
ICT | TECHNOLOGY OVERVIEW
Untermerzbach – Germany
The Operational and Economic Benefits of Recycling Process Water with Centrifugal Technology Rösler, a German company specialising in manufacturing machines and integrated systems for mass finishing and shot blasting, has developed a modern water treatment and purification centrifuge technology to allow the recovery of process water after finishing operations, thus reducing the environmental impact and production costs.
D
uring mass finishing, the process water injected into the finishing
In addition to offering more effective workpiece processing, cleaning
machine is contaminated with the chemical ingredients of the
process water saves money and the environment through reduced
compounds, the fines from the grinding or polishing media and
consumption, compound usage, disposal costs and regulations.
the metal fines from the workpieces. In case of ball burnishing, when Under ecological and economic aspects, the cleaning and recycling
when the workpieces are covered with oil from machining or stamping
of industrial liquids poses a substantial technical challenge. Whether
operations, the water can even be contaminated with oil.
dealing with process water, coolants, sludge from the coating booths
As a family-owned company, Rösler bears a particular responsibility for
or other contaminated industrial liquids, the effectiveness and cost-
future generations. Therefore, sustainable environmental protection is
efficiency of the cleaning process depends entirely on the employed
a central element of its corporate culture. So, it has developed a series
technology. Rösler is meeting this challenge with the highly productive
of closed-loop water circulation systems using centrifuge technology to
and powerful cleaning centrifuges utilising centrifugal force for 2-phase
remove these contaminants regardless of their origin and allow clean
or 3-phase separation of different materials.
process water to be reused and/or safely discharged.
On the basis of its robust and proven centrifugal filtering technology,
The high-performance RZ 60 M is the smallest centrifuge of Rösler.
188 N. 84 - NOVEMBER/DECEMBER 2023 - international PAINT&COATING magazine
© Rösler
Efficient cleaning of all kinds of industrial liquids
contain dissolved metals and become alkaline or acid. Or, for example,
© Rösler
acidic or alkaline compounds are used, the process water can also
The RZ 120 M centrifuge is the most productive model within the range of semi-automatic cleaning centrifuges.