Overview
The Yaskawa SGMAH-04A1A21 is a Sigma-II rotary servo motor engineered for high-performance motion control in industrial automation. This 400W AC servo motor features a single-phase 200V power supply, 3000 RPM rated speed, and a 16-bit absolute encoder for precise position feedback. The low-inertia design enables fast accelerations and short settling times, making it ideal for applications demanding rapid response and smooth operation.
Key Features
- 400W rated power output with 0.54 HP continuous capacity
- 16-bit absolute encoder for accurate position feedback and repeatability
- Low-inertia design for extremely fast accelerations
- Straight shaft without key, no brake or oil seal
- Hypertac connector standard configuration
- Peak torque capability of 300% during 3-second intervals
Technical Specifications
The SGMAH-04A1A21 delivers consistent performance across demanding industrial environments:
- Rated Output: 400W (0.54 HP)
- Power Supply: 200V single-phase AC
- Base Speed: 3000 RPM
- Encoder: 16-bit absolute encoder
- Shaft Configuration: Straight shaft, no key
- Brake: No brake
- Oil Seal: No oil seal
- Connectors: Hypertac type
- Vibration Resistance: Up to 49 m/s²
- Environmental Rating: IP55
Typical Applications
The SGMAH-04A1A21 servo motor is widely deployed in:
- CNC machine tool positioning and spindle control
- Precision manufacturing and assembly operations
- Factory automation and material handling systems
- Cutting and milling equipment requiring rapid response
- High-speed packaging and labeling machinery
- Any application requiring sub-millisecond settling times
Compatibility & Replacements
Compatible With
- Yaskawa Sigma-II servo amplifiers (SGDH, SGDA series)
- Standard servo drives with 200V single-phase AC input
- Motion control systems using 16-bit encoder feedback
- Industrial PLC and CNC controllers with analog servo commands
Replaces / Drop-In Replacement For
- Yaskawa SGMAH-04A1A21D (alternate variant)
- Yaskawa SGMAH-04A1A-SM21
- Verify compatibility with your system integrator before ordering
Works With
- Yaskawa servo drive models: SGDH, SGDA-02AS, SGDA-04AS amplifiers
- Standard analog servo command voltage 0-10V
- Encoder feedback via standard servo cabling
- Compatible with legacy CNC control systems using Sigma-II architecture
