New Mitsubishi Servo Motor HC-MFS73K HCMFS73K
Factory-new 750W low-inertia brushless AC servo motor from Mitsubishi Electric's HC-MFS series, engineered for high-speed CNC and precision automation applications requiring dynamic response, positional accuracy, and continuous-duty reliability.
The Mitsubishi HC-MFS73K is a compact, fast-responding servo motor designed for precision automation where dynamic performance and reliability are critical. This listing offers a genuine new unit with factory-original bearings, encoder, and windings—no service history or accumulated wear.
| Parameter | Value |
|---|---|
| Model Number | HC-MFS73K |
| Condition | New |
| Rated Output | 750W |
| Motor Type | Brushless AC Servo |
| Series | HC-MFS (Low Inertia, Small Frame) |
| Inertia Class | Low |
| Feedback System | Incremental Encoder |
| Drive Compatibility | MR-J2S Series (MELSERVO) |
| Cooling Method | Self-Cooled (Natural Convection) |
| Mount Type | Flange Mount |
| Application Focus | High-Speed Precision Automation / CNC |
- Low-Inertia Rotor: Slim rotor geometry minimizes rotational inertia for faster acceleration/deceleration and higher control loop gains
- Incremental Encoder: High-resolution position feedback for accurate closed-loop control across entire speed range
- Natural Convection Cooling: Self-cooled design eliminates auxiliary cooling systems and maintenance requirements
- Compact Flange-Mount Construction: Enables installation in tight spaces common in multi-axis automation systems
Designed specifically for MR-J2S servo amplifiers, the HC-MFS73K benefits from:
- Auto-tuning function that estimates load inertia and optimizes gain parameters
- Parameter management via MR Configurator software
- Seamless integration with Mitsubishi MELSEC PLCs and motion control systems
- Pick-and-place unit primary axis drives
- Small Cartesian robot X, Y, and Z axis positioning
- Precision dispensing and fluid application equipment
- Electronic assembly station servo-driven tooling axes
- Compact conveyor indexing with product load
- Vision-guided alignment and precision stage positioning
- Semiconductor and electronics handling equipment
- High-speed drill and tap unit feed axis control
- Packaging machine registration and film-feed axes
- Winding and coil-forming traverse axis drives
- Confirm complete part number including suffix characters
- Back up amplifier parameters before disassembly using MR Configurator
- Inspect encoder cable condition during planned motor replacement
- Perform manual verification before automatic operation
The HC-MFS73K is designed for use with Mitsubishi MR-J2S series servo amplifiers. For a 750W motor, the MR-J2S-70A is the typical amplifier match.
A new unit carries factory-original components with zero service hours and no prior operational stress, eliminating the uncertainty of rebuild quality and service history.
The HC-MFS73K uses an encoder interface matched to the MR-J2S amplifier generation. Direct compatibility with MR-J4 or MR-JE amplifiers is not guaranteed without interface conversion.
Axis-specific parameters stored in the amplifier must be restored from a backup taken before motor removal. Auto-tuning with the machine load attached is recommended after parameter restoration.
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