Description
In Mitsubishi CNC systems (especially MDS-E / MDS-EM / MDS-EJ / SPV3 platforms), HG302 is typically interpreted as:
A high-power HG-series AC servo motor, generally in the ~3.0 kW class range, depending on machine configuration.
⚙️ Practical interpretation (field service view)
HG302 is generally treated as:
- HG-series brushless AC servo motor
- Heavy-duty CNC feed-axis motor
- High torque, high inertia capability
- Used for main axis feed drives (X/Y/Z) in larger machines
- OEM-coded variant of HG motor family
🏭 Typical applications
- Large CNC machining centers
- Heavy milling machines
- High-load feed axes
- Turning centers with strong cutting force
- Older Mitsubishi CNC systems (custom OEM builds)
📊 Position in HG family (approximation)
HG302 usually sits between:
- HG224 (~2.2 kW class)
- HG354 (~3.5 kW class)
👉 So in practice:
- It is commonly closest to a ~3.0 kW heavy-duty HG motor, depending on torque and frame size.
📊 Why HG302 is not standard
Mitsubishi official HG naming is strictly power-based:
- HG54 → 0.5 kW
- HG75 → 0.75 kW
- HG104 / HG105 → ~1.0 kW
- HG154 → 1.5 kW
- HG204 / HG224 → 2.0–2.2 kW
- HG354 → 3.5 kW
👉 “302” does not exist in this official structure, so it is likely:
- OEM internal code
- Machine builder-specific motor identifier
- Or configuration/winding/encoder variant label
📌 Simple Meaning
HG302 =
OEM/legacy designation for a high-power Mitsubishi HG-series servo motor, typically around ~3.0 kW class, used for heavy-duty CNC feed-axis control.

