Description
SJ-V55-01ZT (Mitsubishi Electric)
SJ-V55-01ZT is a Mitsubishi Electric SJ-V series AC spindle motor, designed for very high-power CNC machining centers that require extreme cutting torque and stable heavy-duty spindle operation.
This model belongs to the upper end of the SJ-V (medium-inertia spindle motor) family.
🔧 Key specifications (SJ-V55-01ZT)
From Mitsubishi spindle motor catalog data and industrial listings:
| Parameter | Value |
|---|---|
| Series | SJ-V |
| Short-time rated output | 55 kW |
| Motor type | AC spindle motor (medium inertia class) |
| Shaft configuration | Hollow shaft (T type) |
| Bearing | High-speed spindle bearings |
| Cooling | Machine/forced-air dependent |
| Design focus | Heavy cutting / high torque stability |
⚙️ What “01ZT” means
- 01 → standard electrical / mechanical configuration
- Z → revised / optimized internal design version
- T → through-spindle (hollow shaft) for coolant or tool-through machining
So:
01ZT = standard 55 kW SJ-V spindle motor with through-spindle capability and revised design
🏭 Typical applications
SJ-V55-01ZT is used in:
- Large CNC vertical machining centers (heavy duty)
- horizontal machining centers (HMCs)
- industrial production machining lines
- heavy roughing / high material removal processes
It is selected when machines need:
- very high cutting torque at low RPM
- strong rigidity under heavy load
- continuous industrial-duty operation
⚖️ Position in Mitsubishi spindle lineup
| Series | Role |
|---|---|
| SJ-DL | Ultra high-speed drilling/tapping |
| SJ-DJ | Compact/lightweight spindles |
| SJ-V | General-purpose + heavy machining spindles |
| SJ-DG | High dynamic / advanced cutting spindles |
🧠 Simple explanation
SJ-V55-01ZT is a 55 kW-class CNC spindle motor designed for very large machining centers, optimized for extremely high torque and stable heavy cutting at relatively low speeds.