Yaskawa SGMGH-20DA
SGMGH
Lifecycle & replacement
Yaskawa defines this status as: “Legacy products can still be purchased, but are not intended for new applications.”
- SGM7GListed under “Retrofit / Upgrade Product”IAC note: Joined to matrix row: SGMGH; successor column: Retrofit / Upgrade Product
- Applies to Yaskawa America (the Americas)
- Yaskawa support matrix: replacement available, factory repair available, exchange not listed
On a servo axis the amplifier, motor, encoder and cables are a matched set. When a legacy component fails, the manufacturer's current generation usually does not pair with the rest of the original set, so the whole axis typically has to be upgraded together: drive, motor and cables, and often controller parameters or firmware. Replacing only the failed unit is rarely possible. Before ordering, talk to us: we can quote a like-for-like legacy spare or exchange unit to keep the existing installation running, or engineer a matched upgrade path for the axis.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Source: Yaskawa America Support By Product - Servomotors, retrieved 2026-09-01.
Technical specifications
Ratings
| System Voltage | 400V AC |
| Rated Output 1 - kW (hp) | 1.8 (2.4) |
| Rated Torque 1 - N • m | 11.5 |
| Rated Torque 1 - lb • in (kg • cm) | 102 (117) |
| Instantaneous Peak Torque * - N • m | 28.7 |
| Instantaneous Peak Torque * - lb • in (kg • cm) | 254 (293) |
| Rated Current 1 - A RMS | 8.4 |
| Instantaneous Maximum Current 1 - A RMS | 20 |
Ratings [SGMAH Sigma II]
| System Voltage | 400V AC |
| Torque Constant - lb•in/A RMS (N•m/A RMS ) | 12.9 (1.46) |
| Moment of Inertia - lb•in•s 2 x 10 -3 | 28.1 |
| Moment of Inertia - kg•m 2 x 10 -4 | 31.7 |
| Holding Brake (at 20°C) - Capacity - W | 18.5 |
| Holding Brake (at 20°C) - Torque - N • m | 43.1 |
| Holding Brake (at 20°C) - Coil Resistance - W | 31.1 |
| Holding Brake (at 20°C) - Rated Current - A | 0.77 |
| Holding Brake (at 20°C) - Additional Inertia - lb•in•s 2 x 10 -3 | 7.75 |
| Rated Angular Acceleration * - rad/s 2 | 3620 |
| Inertia Time Constant - ms | 2.4 |
| Inductive Time Constant - ms | 11.1 |
Ratings [SGMGH]
| System Voltage | 400V AC |
| Torque Constant | 12.9 (1.46) |
| Moment of Inertia | 31.7 |
| Holding Brake (at 20°C) - Capacity | 18.5 |
| Holding Brake (at 20°C) - Torque | 43.1 |
| Holding Brake (at 20°C) - Coil Resistance | 31.1 |
| Holding Brake (at 20°C) - Rated Current | 0.77 |
| Holding Brake (at 20°C) - Additional Inertia | 7.75 |
| Rated Angular Acceleration * | 3620 |
| Inertia Time Constant | 2.4 |
| Inductive Time Constant | 11.1 |
Documentation & CAD
Files hosted by Yaskawa; links open the official document or download page. 3D CAD requires a free Yaskawa login.
Manuals
2D drawings
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs Yaskawa parts — new, refurbished, or exchange units with warranty.
Specifications compiled from official Yaskawa product documentation. Always confirm against the datasheet for your exact unit and revision.