Save time when polishing and etching with the automatic, microprocesser-controlled LectroPol-5 electrolytic polishing machine.

LectroPol-5 facts

  • Scanning function
  • Method Database
  • Easy to use
  • Maximum reproducibility

The LectroPol-5 is designed for automated electrolytic polishing and etching of metallographic specimens. A scanning function for easy determination of parameters, built-in safety features, and a database with methods for various materials enables short polishing times and maximum reproducibility.

LectroPol-5 consists of two units, the control unit and the polishing unit. The two units can be separated from each other.


Automatic determination of parameters

LectroPol-5 features a scanning function that helps to determine the correct voltage for both polishing and etching, thus saving time and avoiding human error. LectroPol-5 displays the scan curve, while the user selects and sets the voltage. Instead of time-consuming trial and error parameter testing, it is now easy to find the correct settings after a single scan of a new sample material.

Method Database

The LectroPol-5 comes with ten polishing/etching methods for various materials, enabling immediate preparation of a wide range of materials without any lengthy and time-consuming trials. These methods can also be used as starting points for the development of methods for other materials. The LectroPol-5 database can store 20 user-defined methods.

Short polishing times and high reproducibility

Electrolytic polishing and etching have very short preparation times when compared with normal mechanical specimen preparation. Microprocessor control and database functions ensure the use of correct parameters. LectroPol- 5 combines both short preparation times and high reproducibility and is thus the ideal choice for fast quality control requirements.


  • LectroPol control unit

    The control unit

    Both the power supply and the programming and monitoring functions are incorporated in the control unit. Easy touchpad operation combines with a back-lit graphic display of all parameters and monitoring of the process.

  • LectroPol polishing above


    The separate unit design enables the polishing unit to be placed away from the control unit in a fume cabinet, for example. The process can also be started directly from the polishing unit. The electrolyte is stored in easily exchangeable electrolyte containers that are inserted into the polishing unit.

  • LectroPol safety

    Built-in safety features

    All functions are controlled using advanced software. An increase in the electrolyte temperature above a pre-defined limit will automatically result in either a warning or shut-down of the procedure in progress. Voltage and current are constantly monitored, and settings are automatically kept within the limits of Lectro-Pol-5.

  • LectroPol advanced cooling

    Advanced cooling control

    LectroPol-5 features a built-in measuring and control system that constantly monitors the electrolyte temperature. If the temperature exceeds the given limit, water is run through the cooling coil. If no water is connected, or the electrolyte temperature continues to rise, a warning is displayed, and the LectroPol-5 automatically shuts down.

  • LectroPol polishing below

    Polishing at below freezing

    A special LectroPol polishing unit is used for this application. Stainless steel cooling coils are led directly to the back of the polishing unit where they can be connected to an external cooling unit. The external cooling unit takes over temperature control and regulation of the electrolyte, enabling materials to be polished at sub-zero temperatures.

  • LectroPol etching

    External etching

    LectroPol-5 can also be used for external etching (controlled by a preset voltage exposure and polishing time).




  • Model types
  • Technical Data


Model types


LectroPol Electrolytic Polishing Machine LectroPol-5
Fully automatic, microprocessor-controlled electrolytic polishing and etching apparatus. Complete with control unit, polishing unit, and external etching unit. One set of masks and two electrolyte containers are included.


Technical Data


LectroPol Technical Data Sheet


Struers Technical Data Sheets are designed to help you make the best choice of equipment for your particular purpose. You can find important information such as capacity and performance specifications, dimensions, weight, electrical data, noise levels, ambient conditions, and safety. In many cases you can also obtain an overview of accessories offering higher capacity and performance.


Struers’ equipment is in conformity with the provisions of the applicable international directives and their appurtenant standards.
Struers’ products are subject to constant product development. Therefore, we reserve the right to introduce changes to our products without notice.

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