HSD25 Incremental



  • One-or two-channel versions
  • Optional adaptive line driver
  • High-resolution, unbreakable code disc
  • Standard industrial plugs
  • Ingress protection NEMA 4X, IP67
  • Available with housing made of nickel or stainless steel
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  • Hengstler GmbH
    Uhlandstr. 49
    78554 Aldingen
  • Tel. +49 / 7424 - 89 -286
  • Support request


Product FamilyHSD25
Ordering InformationRotaryEncoderHSD25
Fuction / ApplicationIncremental


Housing Diameter [mm]58,9 mm
Solid- / Hollow ShaftHollow 6 ... 19 mm
Protection Rating HousingIP67
Operating Temperatur [°C]-40 ... +100 °C
Housing Option
  • Stainless Steel
  • Nickel Finish
  • powder coated aluminium
Increased Environmental RequirementsHigh mechanical robustness
  • Cable
  • M12-connector
  • M23-connector
  • MS-connector
  • Bayonet-connector


Revolutions [rpm]5.000 rpm
Number of Pulses1 ... 3600
  • Differential Line Driver
  • Push-pull
  • Open Collector NPN

The optical HSD25 hollow shaft rotary encoder with up to 19.05 mm shaft diameter will work reliably within a temperature range from -40°C to +100°C. This type of rotary encoder with its hard anodised housing outlet exceeds the requirements of IP66/IP67 nd NEMA 6. By employing a state-of-the-art opto-ASIC, the rotary encoder is resistant to shocks and vibrations. The HSD25 rotary encoder can easily be installed in conjunction with motors and thus provides reliable feedback signals even in tough ambient conditions. The HSD25 series of rotary encoders also includes intrinsically safe ATEX variants for use in potentially explosive atmospheres.