Magnetic linear and rotary encoders
Magnetic linear and rotary encoders

Setting a new standard for precision in magnetic encoders

Balluff's proprietary magnetizing process brings a new level of accuracy to magnetic encoders. The stronger, more sharply defined magnetic poles produced by Balluff’s Permagnet® technology deliver higher practical system accuracy, enabling Balluff encoders to be more tolerant of variation in the working distance between the encoder read head and the tape. Permagnet® technology reduces dispersion and distortion of the magnetic field throughout the specified working range, reducing the influence of gap-distance variation on the accuracy of the position measurement in real-world applications.

Balluff's magnetic encoder technology has advanced to the point that it can challenge general-purpose optical scale encoders. Magnetic encoders can deliver equal or better performance than many optical encoders, with higher robustness and lower total cost.

Advantages

  • Resolution to 1µm, accuracy to ± 10μm
  • Repeatability / Hysteresis to ±1 increment
  • High-speed, real-time operation
  • Non-contact and wear-free
  • Highly immune to contamination by dirt and liquids
  • Resists shock and vibration
  • Incremental, absolute, or hybrid interfaces
  • Low-profile tape and compact sensors
  • Measurement lengths up to 48 m

Product families

  • Absolute linear magnetic encoder system

    Dynamic and precise positioning with high level of reproducibility

    The BML absolute linear magnetic encoder systems from Balluff ensure absolute positional feedback in every position. They can be used immediately – no reference run needed. Continues working right after a loss of operating voltage or restarting the system.

    Features

    • Best machine performance via quick and precise measured value determination with high level of reproducibility
    • High system availability thanks to durably stable magnetic tape with Permagnet® Technology
    • Robust metal housing for a long service life
    • Simple and quick installation using calibration software
    Absolute linear magnetic encoder system
    Absolute linear magnetic encoder system

    The BML absolute linear magnetic encoder systems ensure dynamic and precise positioning during semi-conductor assembly.

  • Absolute rotary magnetic encoder system

    Highly accurate positional feedback that can be used flexibly

    The BML absolute rotary magnetic encoder systems from Balluff ensure absolute positional feedback in every position. They can be used immediately – without a reference run. Our rotary encoder systems also function highly accurately even on large diameters, are extremely compact, and easy to integrate into motors.

    Features

    • Saves energy through high levels of precision and accuracy
    • Low total costs
    • High system availability thanks to durably stable magnetic tape with Permagnet® Technology
    • Long service life thanks to its robust metal housing
    • Simple and quick installation using calibration software
    Absolute rotary magnetic encoder system
    Absolute rotary magnetic encoder system

    Our absolute motor feedback-systems are highly accurate, extremely compact, and easy to integrate into engines.

  • Incremental linear magnetic encoder system

    Precise and flexible – for a wide range of applications

    Our BML incremental linear magnetic encoder systems can be used across a wide range of applications and for virtually any measuring length. They ensure precise positioning, for example, in energy production, the beverage industry, and many other sectors. Thanks to standardized digital and analog interfaces, these sensors can be integrated into almost any control system.

    Features

    • Best machine performance via quick and precise measured value determination with high level of reproducibility
    • High system availability thanks to durably stable magnetic tape with Permagnet® Technology
    • Robust metal or plastic housing for a long service life
    Incremental linear magnetic encoder system
    Incremental linear magnetic encoder system

    BML incremental linear magnetic encoder systems ensure precise positioning in energy production, the beverage industry, and many other sectors.

  • Incremental rotary magnetic encoder system

    Precise positioning and speed control of rotational axles and shafts

    Product finder

    Our BML incremental rotary magnetic encoder systems are used for precise positioning and speed control of rotational axes and shafts. Balluff offers the appropriate sensor for nearly every shaft diameter. Thanks to standardized digital and analog interfaces, they can be integrated into most control systems and enable the proper drive, even in torque motors.

    Features

    • Lower process and storage costs through flexible use of the measuring elements in a circular segment
    • Low total costs
    • High system availability thanks to durably stable magnetic tape with Permagnet® Technology
    • Robust metal or plastic housing for a long service life
    • Saves space with optimum ease of integration
    Incremental rotary magnetic encoder system
    Incremental rotary magnetic encoder system

    BML incremental rotary magnetic encoder systems ensure the proper drive even in torque motors.