Description
SJ-V22-01ZT (Mitsubishi Electric)
SJ-V22-01ZT is a Mitsubishi Electric SJ-V series AC spindle motor, designed for high-power CNC machining centers requiring strong cutting torque and stable heavy-duty spindle operation.
It belongs to the SJ-V (standard medium-inertia spindle motor family) and is one of the higher power variants in this series.
🔧 Key specifications (SJ-V22-01ZT)
| Parameter | Value |
|---|---|
| Series | SJ-V |
| Continuous rated output | 18.5 kW |
| Short-time rated output | 22 kW (30 min rating) |
| Acceleration/deceleration output | 22 kW |
| Actual accel/decel output | 26.4 kW |
| Base speed | 1500 rpm |
| Maximum speed | 8000 rpm |
| Frame size | B160 |
| Continuous torque | 118 N·m |
| Inertia | 0.08 kg·m² |
| Cooling | No built-in fan (machine/drive cooling dependent) |
| Protection class | IP44 (variant dependent) |
⚙️ What “01ZT” means
- 01 → standard design / electrical configuration
- Z → revised / optimized internal design variant
- T → through-spindle (hollow shaft) configuration for coolant or tool-through machining
So:
01ZT = standard 22 kW-class SJ-V spindle motor with through-spindle capability and revised internal design
🏭 Typical applications
SJ-V22-01ZT is used in:
- CNC vertical machining centers (heavy-duty)
- large milling machines
- industrial production machining lines
- heavy cutting operations requiring high torque
It is selected when machines need:
- very high cutting force at low/medium RPM
- stable continuous industrial duty
- strong spindle rigidity under load
⚖️ 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 / high-performance cutting spindles |
🧠 Simple explanation
SJ-V22-01ZT is a 22 kW-class CNC spindle motor designed for heavy-duty machining centers, optimized for strong torque and stable cutting up to about 8,000 rpm rather than high-speed operation.