0539445 AX70/1212EK.72SBA-F0 Ex Absolute Encoder Custom Replacement Solution
For the original 0539445 AX70/1212EK.72SBA-F0, we provide a custom replacement solution that mirrors the original parameters and installation specifications on a 1:1 basis. Using non-standard customization, our team ensures that the encoder is produced to meet both the technical and mechanical requirements of the original. With a 10–15 working day production cycle, users can secure their replacements without the long delays that often accompany sourcing discontinued or hard-to-find encoders. This service not only shortens procurement time but also provides enterprises with a practical path to overcome sourcing challenges while maintaining system integrity.
The original AX70/1212EK.72SBA-F0 encoder is part of Hengstler’s Ex-certified absolute encoder series, specifically designed for use in hazardous environments where ATEX and IECEx compliance is mandatory. It is widely applied in oil & gas, chemical plants, and energy facilities where precise and reliable position feedback is required. Its robust housing, high-resolution output, and certification for explosive zones make it a trusted solution in safety-critical applications. By offering a tailored replacement, we ensure that customers continue to benefit from the encoder’s original application strengths while avoiding the risks of long lead times and procurement barriers.
Technical Datasheet: Ex Absolute Encoders AX 70
| Parameter | Details |
|---|---|
| Housing diameter | 70 mm |
| Shaft diameter | 10 mm (solid shaft) |
| Flange (Mounting of housing) | Clamping flange, fastening screw thread 3x M6x12 |
| Protection class housing¹ (EN 60529 / A1:2000-02) | T4: IP65 or IP67 |
| Protection class shaft¹ (EN 60529 / A1:2000-02) | T4: IP64 or IP67 |
| Starting torque typ. | ＜1 Ncm |
| Moment of inertia | ca. 20 g·cm² |
| Max. shaft load | axial 40 N / radial 100 N |
| Vibration resistance (IEC 68-2-6) | 100 m/s² (10 - 1500 Hz) |
| Shock resistance (IEC 68-2-27) | 1000 m/s² (6 ms) |
| Operating temperature | Operating temperature correlating with Ex-requirements, please see following tab showing allowed ambient temperature in relation to different conditions |
| Storage temperature | -25°C … +85°C |
| Material shaft | Stainless Steel |
| Material housing | Aluminum (AX70); Stainless Steel (AX71) |
| Weight | AX70: approx. 1.4 kg; AX71: approx. 4.8 kg |
| Connection | Cable, axial or radial |
