Description
The Beckhoff AM8121-0F21-0000 is a compact servo motor with a rated torque of 0.50 Nm and a nominal speed of 3000 RPM. Operating at 48 V DC with One Cable Technology and integrated multi-turn feedback, it offers precise motion control with a holding brake for secure positioning.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Beckhoff |
| Category |
Motors |
| Part Number |
AM8121-0F21-0000 |
| Subcategory |
Servo Motors |
| Voltage Range |
< 50 V DC |
| Rated Torque |
0.50 Nm |
| Rated Speed |
3000 RPM |
| Standstill Torque |
0.50 Nm |
| Standstill Current |
4.0 A |
| Shaft Diameter |
9 mm k6 |
| Free Shaft End |
20 mm |
| Flange Size |
58 mm |
| Encoder Type |
Absolute encoder, multi-turn |
| Feedback Resolution |
18 bit |
| One Cable Technology |
Yes, feedback via motor cable only |
| Holding Brake |
Integrated holding brake |
| SIL Capability |
SIL 3 |
| Certification |
CE approved |
| Cooling Method |
Natural convection (passive) |
| Motor Type |
Synchronous servo motor |
| Weight |
2.65 lbs |
Information About AM8121-0F21-0000
The AM8121-0F21-0000 is part of Beckhoff’s AM8000 series of high-performance servo motors, designed for precise automation and motion control. With a flange size of 58 mm and smooth shaft construction, it integrates seamlessly into compact machinery. The motor supports One Cable Technology, which combines power and feedback in a single cable, reducing wiring complexity and improving installation efficiency. Featuring a high-resolution 18-bit multi-turn encoder, integrated holding brake, and SIL 3 safety certification, the unit ensures both precision and secure operation in safety-critical applications.
Key Features:
- Rated Torque: Delivers 0.50 Nm of continuous torque for precise and consistent motion control.
- High-Speed Performance: Operates at a rated speed of 3000 RPM for dynamic positioning applications.
- One Cable Technology: Combines motor power and encoder feedback into a single cable to simplify wiring.
- Absolute Multi-Turn Encoder: Provides 18-bit feedback resolution for highly accurate positioning and repeatability.
- Integrated Holding Brake: Secures the motor shaft during standstill or power loss for improved operational safety.
- Compact Mechanical Design: Features a 58 mm flange and 9 mm shaft for easy integration into compact machinery.
- SIL 3 Capability: Supports safety-related applications requiring high functional safety standards.
- Passive Cooling: Uses natural convection for reliable heat dissipation without additional cooling components.
The AM8121-0F21-0000 delivers the reliability and precision required for servo-driven motion control, automated machinery, and high-performance positioning systems.
