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Particle Acceleration - High Precision Stepper Motor Technology for Scientific Applications

Stepper Motor Technolgoy for Vacuum, Cryogenics, High Temperatures and Radiation.

Our EXTREME stepper motors are costefficient, clean and reliable even within extreme environments. The EXTREME series is developed and built to resist vacuum, cryogenics, high temperature and radiation while maintaining high performance, precise positioning, long life and low impact on their environment.


Phytron has built a reputation for producing high precision motors for extreme environments since 1984. Our EXTREME stepper motors are the result of more than 30 years of experience in space technology. More than 250 space motors are driving successful projects - know-how we use to optimise our EXTREME series for industrial and scientific applications in the matter of performance and cost efficiency.


Placing the motor directly in the environment simplifies the customer’s design by eliminating the need for cumbersome mechanics and feed-throughs. Our stepper motors, power stages or controllers are already driving UHV-Applications in PETRA III (DESY), PANTER(MPE), SOLEIL, Mégajoule  and many other projects.

Motion Control for particle accelerators: in-Vacuum and Cryo motors & multi-axis

Application Whitepaper: 'in-Vacuum automation' as PDF-Download

Learn more about the performance of our products, or contact us - we will gladly advise you!

  • Stepper motors for extreme ambient conditions
  • Vacuum applications up to 10-11 hPa
  • Temperature range from –20 to +300 °C
  • Radiation resistance 102 to 106 J/kg
  • Special models for clean room operation
  • Optional: gear, coupling, 2nd shaft, temperature sensor, etc.
  • integrated power stages up to 70 V, 5A; or more powerful stages via external interface
  • 2 limit switches and 1 reference switch per axis already included (electrically isolated)
  • optional encoder (ENDAT / SSI) and temperature evaluation (Pt / K-element) per axis via sub modules 
  • Host Interface

    • Selectable: USB, RS 485, RS 232, RS 422, CAN, Ethernet, ProfiBus/ProfiNet, Bluetooth
    • 4 Axes High End Indexer (interpolation)
    • Power stages
    • Indexer Interface
    • Digital I/O
    • Analogue I/O 
    • Integrated Touch Panel
    • Customised


    • Bench, rail, sub rack or wall mounting
    • Stepper motor controller with integrated power stage for SIMATIC ET 200S®
    • For 2 phase stepper motors
    • 5 APEAK at 24 to 48 VDC
    • Up to 1/512 microsteps
    • Online controller parameterization and diagnostics
    • STEP 7® programming
    • Suitable for low temperatures: He (-269 °C) or N2  (-196 °C)  
    • Ultra high vacuum applications up to 10-11 mbar
    • Radiation resistance up to 106 J/kg
    • Stainless steel housing
    • Customized design: Titanium housing - Space - Reduced magnetic emission

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    All fields of application at a glance
    Mechanical Engineering      Positioning and Handling      Food and Packaging      Research      Medical Engineering      Nuclear      Climatic      Cryo      Cleanroom      Aeronautical Engineering      Space Technology      Vacuum      Particle Accelerator      Arduino      Plant Automation      Paper and Print Industry     
    Phytron GmbH | Fon: +49-8142-503-0 | Fax: +49-8142-503-190 | E-Mail: info@phytron.de