Description
🔧 Mitsubishi HG56-D47 / HG56S-D47 – Description
The HG56-D47 (often written as HG56S-D47) is a Mitsubishi Electric HG Series AC servo motor, mainly used for CNC machine feed axes and general industrial motion control (not spindle use).
It is a compact, medium-power rotary servo motor with a high-resolution encoder for precise positioning.
⚙️ Key Description
- Series: Mitsubishi HG (MELSERVO)
- Type: AC brushless servo motor (rotary)
- Encoder: 20-bit absolute encoder (D47 type, ~1,048,576 pulses/rev)
- Application: CNC axis feed (X/Y/Z), automation, positioning systems
- Mounting: Compact flange-type industrial servo motor
📊 Electrical & Performance Specs
Based on Mitsubishi HG56-D47 official specifications:
- Rated output: 0.4 kW
- Rated torque: 1.3 N·m
- Rated speed: 3000 rpm
- Maximum speed: 6000 rpm
- Maximum torque: 5.0 N·m
- Motor inertia: ~0.379 ×10⁻⁴ kg·m²
🧩 Mechanical Features
- Frame size: ~60 mm class compact servo motor
- Protection: IP67 (shaft excluded)
- Encoder type: 20-bit absolute feedback system
- Structure: High-response low-inertia servo design
- Brake option: Some variants include electromagnetic brake (depends on suffix)
⚙️ Functional Characteristics
- Designed for precise position control in CNC machines
- Works with Mitsubishi MELSERVO amplifiers (MR-J / MDS series depending on machine)
- Provides:
- High positioning accuracy
- Smooth low-speed control
- Fast acceleration/deceleration
🏭 Typical Applications
The HG56-D47 is commonly used in:
- CNC machine feed axes (X, Y, Z movement)
- Small machining centers
- Automation equipment
- Pick-and-place / indexing systems
- Light industrial robotics
⚠️ Important Note
- This is a servo axis motor, NOT a spindle motor
- It does not perform cutting directly
- It drives motion via:
- Ball screw systems
- Linear guides
- Gearboxes
⚡ Summary
The HG56-D47 is a:
- 0.4 kW CNC servo motor
- High-precision 20-bit encoder system
- Designed for axis movement and positioning
- Part of Mitsubishi’s HG feed-axis motor family