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■ Burr-free edges Electro Finishing ensures the gentle removal of burrs that can occur during the
manufacturing process.
■ Smoothed surfaces The process also removes microscopic irregularities and creates a mirrorsmooth
surface that reduces platelet adhesion.
■ Increased longevity via enhanced surface resistance, critical in corrosive bodily environments.

IMPELLER – PRECISION FOR VITAL APPLICATIONS
Heart pump impellers demand strict compliance with requirements for precision, functionality,
and biocompatibility. OTEC provides tailored methods for processing these complex
components:

■ Precision geometries – Drag Finishing ensures meticulous treatment of intricate designs like
impeller blades.
■ Improved surface quality – Electro Finishing creates smooth, polished surfaces to optimize
blood flow and prevent deposits.
■ Comprehensive safety – the combination of OTEC processes ensures precision without
material weakening, guaranteeing stability and functionality.

OTEC technologies enable the serial processing of impellers to consistently high standards,
ensuring the reliable operation of heart pumps.

YOUR PARTNER FOR PERFECT SURFACES
OTEC combines Mass Finishing and Electro Finishing to provide optimal solutions for any
surface requirement. We invite you to discover the precision and efficiency of our processes
tailored to your specific needs. At our in-house Finishing Center, clients from around the world
can process sample components to define the ideal method.
Contact us today to learn more about how our technologies can give you a competitive edge in
medical technology.

OTEC Präzisionsfinish GmbH – Your Expert in Surface Precision.