The WEM11HR magnetic absolute kit encoder delivers high-resolution single-turn position feedback for motor control, robotics, and industrial automation. Designed for OEM integration, this compact encoder combines up to 17-bit absolute resolution with a simple, bearing-free design, making it an ideal solution for space-constrained motion control applications.
Using magnetic sensing technology, the WEM11HR provides 131,072 unique positions per revolution, ensuring accurate and repeatable position measurement without requiring a homing sequence after power-up. In addition, its SSI (Synchronous Serial Interface) with Gray code and an RS422 differential transceiver delivers fast, reliable, and noise-resistant communication with PLCs, servo drives, and motion controllers.
The encoder’s compact PCB design allows quick and easy installation on a wide range of motor shafts. It is available with multiple magnet and hub configurations, giving engineers greater flexibility when designing custom motor feedback systems. As a result, the WEM11HR integrates seamlessly into servo motors, BLDC motors, and precision positioning equipment.
Built for demanding industrial environments, the encoder operates from -40°C to +85°C while running on a 3.3 VDC supply. Its contactless magnetic sensing technology eliminates mechanical wear, reducing maintenance and ensuring long-term reliability.
Key Features
- Magnetic absolute single-turn kit encoder
- Up to 17-bit resolution (131,072 positions per revolution)
- SSI (Synchronous Serial Interface)
- Gray code output
- RS422 differential transceiver
- Compact PCB for easy integration
- Bearing-free, contactless magnetic sensing
- Quick and simple assembly
- Multiple magnet and hub configurations
- Supply voltage: 3.3 VDC
- Operating temperature: -40°C to +85°C
- High accuracy and reliable position feedback
Technical Specifications
| Feature | Specification |
|---|---|
| Technology | Magnetic Absolute |
| Encoder Type | Single-turn Kit Encoder |
| Resolution | Up to 17 bit (131,072 positions/rev.) |
| Interface | SSI |
| Output Code | Gray |
| Communication | RS422 Differential |
| Supply Voltage | 3.3 VDC |
| Operating Temperature | -40°C to +85°C |
| Mounting | Multiple magnet and hub options |
Available Configurations
- Single Magnet
- Ø 9 mm × 2.5 mm
- Ø 6 mm × 2.5 mm
- Ø 4 mm × 2.5 mm
- Hub Version
- Inside Diameter: Ø 3 mm
- Magnet: Ø 4 mm × 1.5 mm
Applications
The WEM11HR is ideal for:
- Servo motor feedback
- BLDC motor control
- Industrial automation
- Robotics
- Precision motion control
- Position control systems
- Medical devices
- AGVs and autonomous robots
- Compact OEM motor designs
Compact Absolute Position Feedback for Precision Motion Control
The WEM11HR magnetic absolute kit encoder combines 17-bit resolution, SSI communication, and compact magnetic sensing to deliver reliable position feedback for advanced motion control systems. Its flexible mounting options, contactless operation, and simple integration make it an excellent choice for robotics, servo motors, and industrial automation applications.