Fork sensors

The perfect sensor for the detection of very small parts and precise positioning

Your Benefits

  • A highly precise laser beam ensures consistent measurement accuracy along the entire measuring range and reliable detection of extremely small objects
  • A visible laser beam enables easy alignment and fast adjustment
  • Reliable and simple setting via teach-in button ensures high process reliability
  • A wide range of different fork sizes increases mounting flexibility
  • Stable aluminum housing for use in harsh industrial environments
  • Thanks to IO-Link or external teach-in, the switching threshold can be adapted while the process is running, increasing process reliability
  • Easy to access data from the PLC via IO-Link


The perfect sensor for the detection of very small parts and precise positioning

WF Laser fork sensors are characterized by fast response times and a highly focused visible laser beam. The sender and receiver operate using a through-beam design and are in a single housing. No adjustments therefore need to be made. The sensors guarantee exceptionally high positioning accuracy and impress with their extremely fast response times and very fine resolution. As a result, the sensors are particularly suitable for detecting extremely small objects such as needles or wires. They are also recommended for the detection of transparent objects. A total of 21 WF Laser variants are available for use in a wide range of applications.

At a glance
  • Very precise Class 1 laser
  • Simple and precise setting of the switching threshold via IO-Link, teach-in button, or plus/minus buttons
  • Fast response time: 100 μs
  • PNP and NPN switching output
  • Light/dark switching function
  • Stable aluminum housing with IP 65 enclosure rating
  • Smart sensor with integrated IO-Link interface


Technical overview

  • Technical data overview

    Technical data overview

    Functional principleOptical detection principle
    Fork width2 mm ... 120 mm
    Fork depth42 mm ... 95 mm
    MDO0.05 mm
    Light sourceLaser, red
    Switching frequency

    10 kHz 1)

    11 kHz 1)

    Response time

    100 µs

    60 µs 2)

    Connection typeMale connector M8, 4-pin
    IO-Link functions– / ✔,

    Advanced functions

    Time measurement + decentralized debouncing

    High speed counter + decentralized debouncing

    • 1) With light/dark ratio 1:1.
    • 2) Signal transit time with resistive load.
All technical data can be found accompanying the individual product