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Photoelectric sensors

Wide spectrum of optical sensors for standard applications or special requirements

Photoelectric sensors

The eagle eyes among sensors

Photoelectric sensors reliably detect the presence of objects and check their shape, color, distance or thickness with high accuracy. Compared to inductive or capacitive proximity switches, optical sensors have a significantly higher detection range. They are real experts with various strengths: detecting and counting parts, monitoring stack heights, through-glass detection, aligning small parts, detecting marks, fill level detection, and much more!

Different surface characteristics, sizes and colors of the objects require different operating principles and designs of photoelectric sensors.

Our wide spectrum offers every light type, whether red light, infrared, blue light or laser technology, in different ranges. With and without background suppression. Various designs – also in mini version – ensure a wide variety of possible applications. Our photoelectric sensors are optimized for robotics, automation, assembly, installation and handling. We also offer reliable and rugged versions for harsh environmental conditions. For other special applications, we also offer our photoelectric mini-sensors, color sensors, light bands and contrast sensors.

Product guide for object recognition

Tell us what your requirements are and we will tell you which product you need!
To the application

Our broad portfolio of optical sensors

Diffuse sensors

  • Ideal for detecting contrast differences – dependent upon surface, color and material
  • For diffuse sensors with background suppression: reliable object detection with different ranges, virtually independent of surface, color and material
  • Cost-effective and easy to mount and align thanks to highly visible light beam
  • Shorter ranges compared to retro-reflective and through-beam sensors
  • Mounting includes only one electrical device
  • Light scanners with blue light for perfect detection of objects that are difficult to recognize

Retroreflective sensors

  • Simple alignment thanks to generous mounting tolerances
  • Large reflectors for high ranges
  • Reliable detection – regardless of surface, color, and material
  • Also with a pole filter suitable for detecting shiny objects
  • Mounting includes only one electrical device plus reflector

Through-beam sensors

  • Ideal for positioning tasks thanks to excellent reproducibility
  • Extremely resistant to contamination and has a large functional reserve
  • Ideally suited for large operating ranges
  • Transmitter and receiver in separate housings

Fork sensors and angle sensors

  • Different light types (red light, infrared, laser)
  • Robust metal housing or compact plastic housing
  • Precise detection and high repeatability
  • Large selection of different shapes and sizes
  • No time-intensive adjustment

Optical windows

  • Uniformly high resolution over the whole area of the frame
  • Detection of small parts with a diameter of up to 0.8 mm
  • Robust metal housing with M8 standard plug connector
  • Adjustable sensitivity and output signal length
  • Dynamic and static variants
  • Modular construction kit with numerous frame sizes

Light bands and light grids

  • Robust metal housing for stable mounting and precise alignment
  • Also suitable for large objects
  • Various signal outputs available
  • Simple, intuitive operation
  • No additional accessories such as controller, PC or software required

Color sensors

  • High switching frequency
  • With or without display
  • Robust and industrial grade
  • Variants in small housing for space-saving installation
  • Depending on type, large operating ranges of up to 400 mm thanks to a strong white light
  • Optionally with IO-Link interface for simple parameterization
  • Differentiation between any number of objects
  • Very high color resolution
  • Application-specific parameterization

Contrast sensors

  • Pinpoint accurate switching for fast processes with a high switching frequency of up to 30 kHz
  • Different light types (laser, red/green/blue or white light)
  • Large ranges with laser
  • Clearly visible light points for easy alignment
  • Pulse extensions
  • Outside teach-in possible
  • Also available with analog output signal
  • Easily adjustable via the display (also available without)
  • Different model series for different applications

Luminescence sensors

  • UV light - no external lamps or light sources required
  • Programmable with the touch of a button – without separate software
  • Robust, industrial-grade configurations

Fiber-based devices for plastic and glass fibers

  • Detection of low contrast differences
  • Very fast – up to 8 kHz
  • High positioning accuracy
  • Flexibly mountable, simple to install
  • Additional functions available (parameterizable)
  • Mechanically robust
  • Highly-accurate switching
  • With one-way or detecting principle
  • Straight or angled optics
  • Compact configuration for mounting on top-hat rails
  • With or without display
  • Different light types (red or infrared)
  • Also optionally available with analog output signal
  • Different model series for glass or plastic fibers

Plastic and glass fibers for fiber-based devices

  • High function reserve
  • High quality materials and precise machining
  • Homogeneous optical properties
  • Compact, flexible, and robust with various sheathing materials, lengths, and diameters
  • Teach in on the sensor via teach-in input or via the especially easy IO-Link
  • With diagnostics and condition monitoring functions upon request
  • Also available as user-configurable fibers

Micromote - optical sensor heads

  • Large selection of sensor heads with highest precision: Microspot, Nanospot, Laser, Infrared, classic red light LED
  • Amplifier for analogue, digital, dynamic with display of set and actual values
  • Excellent technical characteristics
  • Optimal use in grippers

Photoelectric distance sensors

  • Ideal for distance measurements and distance monitoring of short, medium, and long measurement ranges
  • Additional switching outputs with adjustable switchpoints available for almost all products
  • Teach in on the sensor via teach-in input or button
  • Optionally with IO-Link interface for easy parameterization and additional functions

Do you have any questions or suggestions? We are at your disposal.

For all questions concerning commercial topics such as quotations, orders, delivery times, our inside sales department will be happy to support you.

Contact us directly by phone: +45 7023 4929


Balluff ApS

Niels Jernes Vej 10
9220 Aalborg Øst

Please contact us:
[email protected]

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