The AK87HE1 is a high-resolution 87 mm absolute optical encoder designed for precision motion control, servo motor feedback, robotics, and industrial automation. Featuring a through-hollow shaft and single-turn resolution of up to 24 bits, it delivers highly accurate position feedback for applications that demand exceptional precision and reliability.
The encoder supports both SSI and BiSS-C communication interfaces, allowing fast, reliable data transmission to PLCs, servo drives, and motion controllers. As a result, it provides absolute position information immediately after power-up, eliminating homing procedures and reducing machine downtime.
Designed for demanding industrial environments, the AK87HE1 operates at shaft speeds of up to 4,000 rpm while maintaining excellent accuracy. It accommodates ±1.5 mm axial shaft movement and ±0.02 mm radial runout, simplifying installation without compromising measurement performance.
Its rugged construction includes IP64 protection, resistance to vibration and shock, and an extended operating temperature range of -40°C to +100°C. Consequently, the encoder performs reliably in harsh industrial, robotics, and heavy-duty automation applications.
Key Features
- Single-turn absolute optical encoder
- 87 mm housing
- Through-hollow shaft design
- Resolution up to 24 bits
- Interfaces:
- SSI
- BiSS-C
- Maximum shaft speed: 4,000 rpm
- Low starting torque: < 0.01 Nm
- Protection rating: IP64
- Operating temperature: -40°C to +100°C
- High resistance to vibration and shock
Technical Specifications
| Feature | Specification |
|---|---|
| Technology | Absolute Optical |
| Encoder Type | Single-turn |
| Housing Diameter | 87 mm |
| Resolution | Up to 24 bit |
| Interfaces | SSI, BiSS-C |
| Shaft Type | Through-hollow shaft |
| Maximum Speed | 4,000 rpm |
| Axial Shaft Movement | ±1.5 mm |
| Radial Runout | ±0.02 mm |
| Starting Torque | < 0.01 Nm |
| Rotor Inertia | < 20 × 10⁻⁶ gcm² |
| Protection | IP64 |
| Operating Temperature | -40°C to +100°C |
| Storage Temperature | -40°C to +100°C |
| Vibration Resistance | ≤ 100 m/s² |
| Shock Resistance | ≤ 1000 m/s² |
| Maximum Humidity | 98% (non-condensing) |
| Weight | 0.55 kg |
Applications
The AK87HE1 is ideal for:
- Servo motor feedback
- Industrial robotics
- Direct-drive motors
- Rotary tables
- CNC machine tools
- Packaging machinery
- Semiconductor equipment
- Industrial automation
- Precision positioning systems
- Heavy-duty motion control
High-Resolution Absolute Position Feedback for Industrial Automation
The AK87HE1 87 mm absolute encoder combines 24-bit absolute resolution, SSI and BiSS-C communication, and a through-hollow shaft design to deliver precise and reliable position feedback. With its rugged IP64 housing, extended operating temperature range, and excellent resistance to vibration and shock, it is an ideal solution for demanding robotics, servo motor, and industrial automation applications.