Magnetics Business & Technology - January/February 2022 - 21

PRODUCT NEWS
New Machine from PMB Bobertag for Precise Laser Balancing of Small Rotating
Components
blades of a fan. The measurement of the unbalance and the
following correction run fully automatically.
Retooling to different components can be done fast and flexibly.
If the components or the production program changes, the system
can be adapted by adjustments or by changing the bearing
modules. For larger changes, the balancing core can be simply
changed.
For more info, www.pmp-bobertag.de/en/
Many rotating components such as the rotors of
electric motors, small fans, microturbines and
dental turbines are subjected to high stresses
during operation at speeds of up to 500,000 rpm.
Even the smallest imbalances caused by manufacturing
tolerances or the pressing on of bearings
generate vibrations and damaging bearing forces
at high speeds.
Now, PMB Bobertag, a developer of ultra-precision
balancing systems located in Kaiserslautern,
Germany, has come out with a new machine
for balancing such small, highly sensitive components
quickly, precisely and gently. Its new
Caroba Balancer Laser can balance down to the
microgram range in a process-safe, force-free and
non-cutting way by targeted mass removal.
Whether working with a component or an assembly,
reliably good balancing even with the smallest
permissible residual imbalances is particularly
important, notes the company, and can improve
noise generation and extend service life.
In addition to balancing accuracy and process reliability,
two points have become more important
these days, says the company. The component
must be balanced as gently as possible without
any external mechanical forces, and under no
circumstances should chips be allowed to enter
already mounted bearings or electronics. The
Caroba Balancer Laser meets both these requirements,
says PMB, and can be customized with
individually adaptable internals.
It is designed to provide highly precise reproducible
removal down to the smallest residual
imbalances in the microgram range. In contrast
to machining processes, only a fine laser dust is
formed, which is extracted and filtered directly
at the point of origin. The geometry of the mass
correction is freely selectable, the removal can
be adapted to complex workpieces allowing, for
example, an unbalance correction between the
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www.magneticmetals.com
© 2021 Magnetic Metals Corporation
January/February 2022 * Magnetics Business & Technology 21
http://www.pmp-bobertag.de/en/ http://www.magneticmetals.com http://www.MagneticsMag.com
Magnetics Business & Technology - January/February 2022

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