Technical Overview
The YASKAWA SERVO MOTOR BREAK 1.8KW SGM7G-20A7C6C is a next-generation rotary servo motor from the Σ-7 series, engineered for high-speed, high-torque applications in packaging, robotics, and CNC machinery. This motor features a robust 1.8 kW continuous output with a built-in fail-safe electromagnetic brake, ensuring load holding without external mechanical locks. The SGM7G-20A7C6C utilizes Yaskawa’s proprietary magnetic circuit design to minimize cogging torque and achieve a wide speed range from 0 to 3000 rpm, with a maximum instantaneous torque of 23.4 Nm. It integrates a high-resolution 20-bit incremental encoder (serial communication) for precise position and velocity control, supporting advanced vibration suppression and auto-tuning functions. The motor housing is constructed with a die-cast aluminum frame, equipped with a keyed shaft and IP67-rated connectors, making it suitable for washdown environments. Below are the detailed technical specifications extracted from the Yaskawa engineering database:
| Parameter |
Specification |
| Product Series |
Σ-7 (SGM7G Series) |
| Model Number |
SGM7G-20A7C6C |
| Rated Output Power |
1.8 kW (2.4 HP) |
| Rated Torque |
8.34 Nm (73.8 lb-in) |
| Maximum Instantaneous Torque |
23.4 Nm (207 lb-in) |
| Rated Speed |
3000 rpm |
| Maximum Speed |
5000 rpm (software-limited) |
| Power Supply |
AC 200-240 V, 3-phase (Standard AC Models) |
| Brake Type |
24 VDC Electromagnetic Holding Brake (1.8 Nm static torque) |
| Brake Release Voltage |
24 VDC ±10%, 0.5 A max |
| Encoder Type |
20-bit Incremental (serial), 17-bit Absolute (optional via SGD7S drive) |
| Encoder Resolution |
1,048,576 pulses/rev (incremental); 131,072 pulses/rev (absolute) |
| Rotor Inertia |
2.65 × 10⁻⁴ kg·m² |
| Protection Rating |
IP67 (shaft seal and connector, excluding encoder connector) |
| Insulation Class |
Class F (155°C) |
| Ambient Temperature Range |
0 to 40°C (operating), -20 to 60°C (storage) |
| Ambient Humidity |
20% to 80% RH (non-condensing) |
| Vibration Resistance |
2.5 G at 10-55 Hz (during operation) |
| Mounting Flange |
80 mm square (IEC 72-1 standard) |
| Shaft Diameter |
19 mm, keyed with keyway (JIS B 1301) |
| Weight (with brake) |
Approx. 5.8 kg (12.8 lb) |
| Connector Type |
CN1 (power), CN2 (encoder), CN3 (brake) – MS-style circular |
| Compatible Drive |
Yaskawa SGD7S series (Standard AC Models) |
| Certifications |
CE, UL, cUL, RoHS |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22