Capabilities

Centrifugal Tumbling and Polishing

Achieve consistently smooth surface finishes with Eigen's advanced Centrifugal Tumbling and Polishing services.

How Centrifugal Barrel Finishing (CBF) Works

CBF involves a machine featuring several barrels affixed to a central rotating turret that spins similarly to a high-speed Ferris wheel. While the turret rotates in one direction, each barrel turns the opposite way, generating powerful centrifugal force within each chamber.

Components are placed in the barrels along with selected tumbling media and compounds, either wet or dry. This intense centrifugal action compresses the mixture, creating a strong yet gentle sliding contact between the media and parts. This quickly removes burrs, softens edges, and polishes surfaces evenly. Despite the force, the process remains gentle, making it ideal for fragile parts.


 

About Eigen

How Centrifugal Barrel Finishing (CBF) Works

CBF involves a machine featuring several barrels affixed to a central rotating turret that spins similarly to a high-speed Ferris wheel. While the turret rotates in one direction, each barrel turns the opposite way, generating powerful centrifugal force within each chamber.

Components are placed in the barrels along with selected tumbling media and compounds, either wet or dry. This intense centrifugal action compresses the mixture, creating a strong yet gentle sliding contact between the media and parts. This quickly removes burrs, softens edges, and polishes surfaces evenly. Despite the force, the process remains gentle, making it ideal for fragile parts.


 

The Advantages of Centrifugal Barrel Finishing

  • Faster Turnaround
    Achieve high-quality finishes in significantly less time than traditional vibratory or manual finishing methods.
  • Uniform Surface Quality
    Delivers a consistent, non-directional surface finish that enhances both appearance and function.
  • Improved Part Strength
    Increases compressive stress and corrosion resistance while maintaining tight dimensional tolerances.
  • Better Coating Results
    Provides an ideal surface profile for improved bonding during subsequent plating or coating processes.
  • Efficient Batch Processing
    Allows multiple components to be processed together, lowering manual effort and overall costs.
  • Versatile Material Use
    Suitable for finishing a broad range of metals, ceramics, and plastic materials.

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Why Choose Eigen for Centrifugal Finishing

  • Expertise in Finishing Science
    Our team brings deep experience in media selection and process refinement for even the toughest finishing needs.
  • Precise, Repeatable Quality
    We provide consistent finishes with strict tolerances, as tight as 0.0001 inches, even on delicate or complex parts.
  • Productivity and Scale
    Our batch processing reduces time and costs while delivering exceptional surface finishes at any production volume.
  • Full-Spectrum Capability
    We support a wide variety of part shapes, sizes, and materials, serving as your go-to finishing partner.

Specifications – Design & Engineering Services

Industry Standards AS 9100 D certified, ISO 9001:2015
Engineering Process Die Design, Progressive Tooling
Design Engineering Capabilities AutoCAD, Unigraphics 7.5, NX Die Wizards, Diemaker, Prototype Development

Our Team

Every client we partner with gets the best of our capabilities on every project, regardless of its scale. Your project will come to you after passing through our expert technicians’ most experienced and skilled hands. It will undergo more than 50000 human hours of designing and tooling experience, depending on your requirements and the level of customization required. Our technicians and team members are regularly re-trained and updated on changing market conditions, trends, and customer requirements.

By partnering with Eigen Engineering, you can combine our combined knowledge and experience to create an excellent, refined project.

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Why EIGEN?

Backed by decades of expertise in design, development, manufacturing and supply of progressive metal stamping tools and components.

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Location

Located in the technology capital of India, we have quick access to ports, easy availability of established vendors and excellent tool making expertise.

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Eigen is a supplier for customers in Europe, the USA in the aerospace, locomotive and electronics segment with a proven track record of product quality, customer service and delivery performance.

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Professional Expertise

Eigen has the proven track record of design, development and manufacture of progressive press tools up to 45 stages with complex profiles.

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