Hengstler Incremental Encoders HSD38

Incremental Encoders HSD38

Incremental Encoders HSD38

The HSD38 hollow-shaft rotary encoder for extremely tough tasks in industrial applications can accept shaft diameters of up to 1" (25.4 mm). It works reliably in a temperature range from -40° to +100°C, and is suitable for use in the chemicals, food-processing, oil and gas, paper and steel industries.

NorthStar's HSD38 Extreme Duty Industrial Hollow shaft Encoder accepts up to 1" (25,4 mm) diameter shafts and operates reliably from -40 to +100°C. Its Hard Anodized finish enclosure exceeds IP66/IP67 and NEMA 6 enclosure requirements. This robust encoder features a double-sealed housing that allows application where regulatory washdown and high pressure steam or caustic chemicals are present. Utilization of an advanced Opto ASIC with innovative packaging techniques enables the encoder to operate in high shock and vibration environments.


  • Double-Sealed Housing
  • High Resolution Unbreakable Disk
  • Electrically and Thermally Isolated
  • Industrial Duty Connector
  • NEMA 4X, 6 / IP66 or IP67 Rated
  • Rugged Cast-Aluminum Housing


The HSD38 extreme duty encoder features simple installation on motor or machine shafts. It is often mounted on the back of motors where encoder feedback is needed in harsh environment applications. It is ideal for use in environments that demand heavy washdown protection.

  • Converting Machinery
  • Material Handling
  • Packaging Equipment
  • Processing Equipment


Chemical, Food & Beverage, Paper, Steel and any other where a precise encoder is needed to operate in harsh environments.

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Product FamilyHSD38
Ordering InformationRotary Encoder HSD38
Function / ApplicationIncremental
Housing Diameter [mm]96,5 mm
Solid- / Hollow ShaftHollow 12 ... 20 mm
Protection Rating HousingIP67
Operating Temperature [°C]-40 ... +100 °C
Housing Optionpowder coated alumunium
Increased Environmental RequirementsHigh mechanical robustness
Revolutions [rpm]5.000 rpm
Number of Pulses15 ... 5000
InterfaceDifferential Line Driver
 Open Collector NPN

Download Data Sheet: Incremental Encoders HSD38

Ref: hengstler.de