WK2A, WK2B and WK2S

The WK2 monitoring system is designed to operate under the worst conditions.


  • Absolutely leak proof in the most demanding environment
  • Fast and constant scanning speed
  • Sensor diameter only 22mm
  • Scanning direction right or left
  • Object, tool, and free space scanning
  • PNP outputs, wear resistant, short protected
  • NPN outputs, wear resistant, short protected
  • Inverting of outputs via DIP switch
  • Output latching until new scanning cycle


  • Triple sealed
  • The V-seal eliminates reliably any deposit between moving parts dried up coolant during production standstill does not create malfunctions
  • The chromium-plated special steel housing is wear resistant against shavings and chemicals
  • Wear resisting probe end made of carbide
  • Positioning, speed, and torque controlled drive offers a soft contact at the tool
  • No external mechanical stop

Technical data sensor

Protection IP68
Housing Special steel, chromium-plated
Service life Typically 10 Million cycles
Scanning angle 15...270°, left and right hand turning
Probe length 160mm with carbide end (enclosed with sensor)
100mm, 160mm, 200mm, 250mm with carbide end (accessories)
100mm, 160mm, 200mm, 250mm with brass end (accessories)
Electrical connection Sensor receptacle M12, 5-pins
Ambient temperature 0...80°C
Storing temperature -15...80°C

Technical data controller

Protection IP20
Housing Plastic housing
Mounting Din rail
Supply voltage 24VDC, +/-5%
Signal inputs 24V
Signal outputs 24V, short protected, PNP, NPN (only WK2S controller)
Terminals Screw terminals, WK2S plug-in
Ambient temperature 0...50°C
Storing temperature -15...80°C