Description
SJ-V15-09ZT (Mitsubishi Electric)
SJ-V15-09ZT is a Mitsubishi Electric SJ-V series AC spindle motor, used in general-purpose CNC machining centers for medium-to-high power spindle cutting applications.
It belongs to the SJ-V (standard medium-inertia spindle motor) family, designed for stable cutting torque rather than ultra-high-speed tapping or low-inertia response.
🔧 Key specifications (SJ-V15-09ZT)
| Parameter | Value |
|---|---|
| Series | SJ-V |
| Continuous rated output | 11 kW |
| Short-time rated output | 15 kW (30 min rating) |
| Acceleration/deceleration output | 15 kW |
| Actual accel/decel output | 18 kW |
| Base speed | 1500 rpm |
| Maximum speed | 8000 rpm |
| Frame size | A160 |
| Continuous torque | ~70 N·m |
| Inertia | 0.0575 kg·m² |
| Protection class | IP44 |
| Cooling | Forced air / fan cooled (machine dependent) |
⚙️ What “09ZT” means
- 09 → design / winding / performance variant within SJ-V 15 kW class
- Z → internal revised/optimized design version
- T → through-spindle (hollow shaft) configuration for coolant/tool-through machining
So:
09ZT = upgraded 15 kW SJ-V spindle motor with through-spindle capability
🏭 Typical applications
SJ-V15-09ZT is used in:
- CNC vertical machining centers (VMCs)
- general milling machines
- medium-duty production machining
- heavier cutting operations requiring stable torque
It is chosen when machines need:
- strong continuous cutting power
- stable low-to-medium speed torque
- reliable industrial duty operation
⚖️ Position in Mitsubishi spindle lineup
| Series | Purpose |
|---|---|
| SJ-DL | Ultra-high-speed tapping/drilling |
| SJ-DJ | Compact lightweight spindles |
| SJ-V | General-purpose machining spindles |
| SJ-DG | High torque / heavy cutting |
🧠 Simple explanation
SJ-V15-09ZT is a 15 kW-class CNC spindle motor designed for general machining centers, optimized for strong and stable cutting performance up to about 8,000 rpm.