Fiber Optic Polishing Machines Information

How to Select Fiber Optic Polishing Machines

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Image Credit: Fiber Instrument Sales | Domaille Engineering | Krelltech

Fiber Optic Polishing Machines are used to polish the end faces of fiber optic products (cables, connectors, adapters, etc.) in order to minimize signal losses due to scattering. Polishing the connector is an important step for the whole fiber optic process. Bad polished connectors will increase insertion loss and reflection which will cause a malfunction.


When selecting a fiber optic polishing machine there are several features to consider. These include adjustable pressure, changeable holders, a timer, and the ability to request custom specifications.

  • Polishing machines can come with adjustable pressure. This is important because the fiber connector's finished end-face geometry is generated by of the loading pressure and the hardness of the polishing surface. To optimize the connector end-face, the polishing pressure should be adjustable with clearly marked divisions of measurement.
  • The polishing machine should have changeable holders so that one machine can be used for many connector types. The connector holders should be machined to exacting tolerances so that ferrules can be precisely posited for the polishing work.
  • A timer is necessary for the polishing process so that the machine can be set to run at the customer's needs.
  • Customization will allow the customer to have the machine fit the desired specifications for the polishing film types, timer settings, lubrication and connector holders.