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Yaskawa SGM7J-04AFC6S Sigma-7 400W Medium-Inertia Servo Motor with Oil Seal
| Place of Origin | USA |
| Brand Name | YASKAWA |
| Model Number | SGM7J-04AFC6S |
Product Overview
The Yaskawa SGM7J-04AFC6S is a 400 W Sigma-7 medium-inertia rotary servo motor with a 24-bit incremental encoder and oil-seal-equipped shaft. It is designed for compact industrial motion axes requiring accurate positioning, high-speed operation and additional shaft-side protection.
The motor delivers a rated torque of 1.27 Nm at 3000 RPM and an instantaneous maximum torque of 4.46 Nm. Its 6S mechanical configuration provides a keyed and tapped shaft with an oil seal but does not include a holding brake.
Main Features
- 400 W rated output for 200 VAC-class servo systems.
- Medium-inertia design for stable mechanical load matching.
- Rated torque of 1.27 Nm and peak torque of 4.46 Nm.
- Rated speed of 3000 RPM and maximum speed of 6000 RPM.
- 24-bit incremental serial encoder.
- Straight output shaft with key and threaded center hole.
- Oil seal for additional shaft-side protection.
- Compact 60 mm flange-class construction.
Technical Specifications
| Manufacturer | Yaskawa Electric |
| Series | Sigma-7 SGM7J |
| Model | SGM7J-04AFC6S |
| Motor Type | Medium-Inertia Rotary Servo Motor |
| Power Supply Class | 200 VAC |
| Rated Output | 400 W |
| Rated Current | 2.5 Arms |
| Instantaneous Maximum Current | 9.3 Arms |
| Rated Torque | 1.27 Nm |
| Instantaneous Maximum Torque | 4.46 Nm |
| Rated Motor Speed | 3000 RPM |
| Maximum Motor Speed | 6000 RPM |
| Encoder | 24-Bit Incremental Serial Encoder |
| Shaft End | Straight with Key and Tap |
| Oil Seal | Included |
| Holding Brake | Not Included |
| Protective Structure | IP67, Excluding Shaft Opening |
Compatible System and Applications
The SGM7J-04AFC6S is generally matched with an appropriately configured Sigma-7 SERVOPACK such as an SGD7S-2R8A capacity. The command interface, firmware, encoder support and cable arrangement must be confirmed before installation.
Applications include electronics machinery, compact packaging systems, labelling machines, printing equipment, semiconductor systems, indexing mechanisms, robotic handling equipment and automated assembly machinery.
Maintenance and Replacement Notes
Confirm the complete SGM7J-04AFC6S designation and do not select a replacement using only the SGM7J-04A capacity code. Check the incremental encoder, oil seal, keyed shaft, threaded center hole, flange size and connector arrangement.
This model does not contain a holding brake. A machine axis that must remain mechanically held after servo power is removed requires an external brake or other suitable holding mechanism. Oil-seal versions may also require derating under specified conditions.
Related Models
Related models include SGM7J-04AFA61 without an oil seal, SGM7J-04AFA6S with an oil seal, SGM7J-04AFA6C with a holding brake and SGM7J-04AFC6E with both a holding brake and oil seal.
Inquiry and Supply Notes
Please provide the complete nameplate, installed SERVOPACK model, encoder cable, motor cable and clear photographs of the shaft and connectors. Condition, availability and supplied accessories must be confirmed for each offer.
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