The Nachi-Fujikoshi MSM082Q2D (Part Number 18090020Z A) is a high-performance 750W AC brushless servo motor engineered for high-speed precision and reliability in demanding industrial robotic and CNC applications.
Product Parameters (Datasheet)
- Model Number: MSM082Q2D
- Part Number: 18090020Z A
- Motor Type: AC Brushless Servo Motor
- Rated Output: 750 W (0.75 kW)
- Rated Torque: 2.39 Nm
- Peak Torque: 7.16 Nm
- Rated Speed: 3000 RPM
- Max Speed: 5000 RPM
- Rated Current: 4.4 A
- Voltage Class: 200V AC Class
- Enclosure: IP65 (excluding shaft opening)
- Encoder Type: Incremental/Absolute (Standard high-resolution)
- Inertia: Medium Inertia design for stable control

Country of Origin
This precision motion component is manufactured by Nachi-Fujikoshi Corp. in Japan, utilizing advanced Japanese engineering and high-grade magnetic materials.
Application Fields
The MSM082Q2D is specifically designed for high-dynamic motion in sectors such as:
- Robotics: Powering the primary axes of articulated robotic arms.
- CNC Machining: Driving feed axes for milling and turning centers.
- Automotive Assembly: Operating high-speed nut runners and welding positioners.
- Electronic Assembly: Used in pick-and-place machines requiring rapid start-stop cycles.
- Material Handling: Driving precision linear actuators and sorters.
Product Usage Instructions
- Installation: Secure the motor to a rigid machine base using the flange mount. Ensure the shaft is perfectly aligned with the load to prevent premature bearing wear.
- Wiring: Use dedicated shielded cables for the power (U, V, W, Ground) and encoder connections to minimize electrical noise.
- Cooling: Ensure the motor has adequate natural convection. If installed in a confined space, monitor the surface temperature to stay within rated limits.
- Drive Pairing: This motor must be paired with a compatible Nachi-Fujikoshi or equivalent AC servo drive configured for the specific encoder feedback.
- Brake Handling: If your specific sub-model includes an electromagnetic brake, ensure the 24V DC supply is released before attempting to rotate the shaft.
Product Technical Description
The MSM082Q2D belongs to the high-performance “M” series of Nachi motors. It utilizes high-energy permanent magnets to achieve a high torque-to-weight ratio. The motor is designed with a low-cogging torque profile, ensuring smooth rotation even at very low speeds. Its robust insulation system and IP65 protection make it suitable for environments with oil mist or moisture, common in metal-cutting applications.
Q&A (Common Questions)
Q: Can I use this motor with a different brand of servo drive? A: While possible, it requires precise tuning of the drive parameters and an interface cable compatible with the Nachi encoder protocol.
Q: What should I do if the motor is overheating? A: Check if the duty cycle exceeds the rated continuous torque or if there is a mechanical bind in the system. Ensure the ambient temperature is below 40°C.
Q: Is the encoder replaceable? A: The encoder is a factory-calibrated precision component. Replacement should only be performed by authorized service centers to maintain commutation alignment.
Q: Does this model include a shaft keyway? A: Most MSM082Q2D units feature a keyed shaft, but always verify the specific shaft configuration code on your unit’s nameplate.
Similar Model Recommendations
- Nachi MSM042Q2D (400W version)
- Nachi MSM102Q2D (1.0kW version)
- Nachi MZN082Q2D (High-inertia variant)
- Panasonic MSMF082L1V2 (Similar 750W industrial equivalent)
- Nachi MSM082Q2B (Brake-equipped version)
For more information on the Nachi-Fujikoshi MSM082Q2D and other high-precision servo components, please visit our online catalog.
