







The YASKAWA SERVO MOTORS 400W SGM7J-04A7C6S represents a pinnacle of servo motor engineering, designed to deliver exceptional torque density and dynamic response in compact form factors. This model is part of the Sigma-7 series, known for its advanced vibration suppression and high-speed performance. The SGM7J-04A7C6S features a 400W continuous power rating, a 7A rated current, and a 6S connector configuration (standard with 7-pin power and encoder connectors). It is optimized for use with YASKAWA SGD7S or SGD7W servo drives, offering plug-and-play compatibility and precise feedback via a 20-bit incremental encoder (or optional absolute encoder). The motor’s robust IP67 protection rating ensures reliable operation in harsh industrial environments, including dust and washdown conditions. Below is the detailed technical specification table for this model.
| Parameter | Specification |
|---|---|
| Model Number | YASKAWA SGM7J-04A7C6S |
| Motor Type | AC Servo Motor (Permanent Magnet Synchronous) |
| Rated Output Power | 400 W (0.4 kW) |
| Rated Torque | 1.27 N·m |
| Peak Torque | 3.82 N·m |
| Rated Speed | 3000 rpm |
| Maximum Speed | 6000 rpm |
| Rated Current | 7 A (rms) |
| Peak Current | 21 A (rms) |
| Encoder Type | 20-bit Incremental (Standard); Optional Absolute (Single-turn or Multi-turn) |
| Encoder Resolution | 1,048,576 pulses/rev (20-bit) |
| Connector Type | 7-pin Power + 7-pin Encoder (C6S configuration) |
| Protection Class | IP67 (Shaft seal and connector options available) |
| Insulation Class | Class F (155°C) |
| Insulation Resistance | 100 MΩ min (500 VDC) |
| Dielectric Strength | 1500 VAC for 1 minute |
| Vibration Grade | V15 (≤ 15 μm) |
| Operating Temperature | 0 to 40°C (ambient) |
| Storage Temperature | -20 to 60°C |
| Humidity | 20% to 80% RH (non-condensing) |
| Mounting | Flange-mounted (Standard IEC 72-1) |
| Weight | Approx. 1.2 kg |
| Shaft Type | Straight shaft with keyway and oil seal |
| Brake Option | Not included (Standard model); Optional with brake (SGM7J-04A7C6S-B) |
| Compatible Drive Series | YASKAWA SGD7S, SGD7W, or SGDV (with appropriate firmware) |
| Standards Compliance | CE, UL, RoHS, IEC 60034 |

What Does Our Clients Say
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Laura Navas
Great product!
2019/12/01
Keyence sensor
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Original and fast!
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