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TWK IW 253 / 40-0,5-KFN-KHN inductive linear displacement transducer
TWK IW 253 / 40-0,5-KFN-KHN inductive linear displacement transducer

TWK IW 253 / 40-0,5-KFN-KHN inductive linear displacement transducer

  • Hydraulic and pneumatic cylinder position measurement
  • Machine manufacturing
  • Robotics
  • Press and mold machines
  • Industrial automation
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The TWK IW 253/40-0,5-KFN-KHN is an inductive linear displacement transducer operating on the differential choke principle. A mu-metal plunger moves through coils, causing inductance changes that provide precise position feedback. The sensor is encapsulated in a stainless steel housing for protection against vibration, shock, humidity, oil, and corrosive substances. It offers infinite resolution, no hysteresis, and is protected against short circuits and reverse polarity.
  • Measuring principle: Inductive half-bridge
  • Measuring stroke: 40 mm
  • Linearity: ≤ 0.5 %
  • Output signal: 0…20 mA or ±10 V DC (calibrated)
  • Supply voltage: 21.5–32 V DC or ±13–±16 V DC
  • Operating temperature: -55 °C to +100 °C
  • Vibration resistance: 20 g rms (50 g peak), 20–2000 Hz
  • Shock resistance: 250 g SRS, 20–2000 Hz
  • Protection class: IP66 (IP68 with cable)
  • Material: Stainless steel housing (1.4305), plunger nickel-iron
  • Connection: KFN (front mechanics), KHN (rear mechanics) options
  • Special feature: Infinite resolution, no hysteresis, short-circuit and reverse polarity protection