Description
SJ-V45-01ZT (Mitsubishi Electric)
SJ-V45-01ZT is a Mitsubishi Electric SJ-V series AC spindle motor, designed for very high-power CNC machining centers that require maximum cutting torque, rigidity, and stable heavy-duty spindle operation.
It is one of the largest-frame motors in the SJ-V standard spindle lineup.
🔧 Key specifications (SJ-V45-01ZT)
From Mitsubishi SJ-V spindle motor catalog data:
| Parameter | Value |
|---|---|
| Series | SJ-V |
| Continuous rated output | 37 kW |
| Short-time / accel rating | 45 kW class |
| Base speed | ~1150 rpm |
| Max speed (constant power range) | ~3450 rpm |
| Maximum speed | ~6000 rpm |
| Continuous torque | ~250 N·m class |
| Motor inertia | ~0.34 kg·m² |
| Frame size | Large heavy-duty spindle frame |
| Protection | IP44 (shaft-through excluded) |
| Cooling | Forced air / machine-integrated |
⚙️ What “01ZT” means
- 01 → standard design / electrical configuration
- Z → revised / optimized internal design variant
- T → through-spindle (hollow shaft) for coolant / tool-through machining
So:
01ZT = standard SJ-V 45 kW-class spindle motor with through-spindle capability and updated design revision
🏭 Typical applications
SJ-V45-01ZT is used in:
- Large CNC vertical machining centers (heavy duty)
- horizontal machining centers (HMCs)
- industrial production lines
- heavy roughing / high material removal cutting
It is selected when machines need:
- very high cutting torque at low RPM
- strong spindle 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/light spindles |
| SJ-V | General-purpose + heavy machining spindles |
| SJ-DG | High dynamic / advanced cutting spindles |
🧠 Simple explanation
SJ-V45-01ZT is a 45 kW-class CNC spindle motor designed for large machining centers, optimized for extremely high torque and stable heavy cutting at relatively low speeds (up to ~6000 rpm).