Description
SJ-V18.5-01ZT (Mitsubishi Electric)
SJ-V18.5-01ZT is a Mitsubishi Electric SJ-V series AC spindle motor, designed for high-power CNC machining applications where strong continuous torque and stable heavy cutting performance are required.
It belongs to the SJ-V (medium-inertia general-purpose spindle motor family), typically used in larger machining centers.
🔧 Key specifications
| Parameter | Value |
|---|---|
| Series | SJ-V |
| Short-time rated output | 18.5 kW |
| Motor type | AC spindle motor (medium inertia) |
| Design focus | Heavy-duty general machining |
| Shaft configuration | Standard / hollow variants depending on machine build |
| Bearing type | High-speed spindle bearings |
| Cooling | Forced air / machine-integrated (application 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 18.5 kW SJ-V spindle motor with through-spindle capability and design revision
🏭 Typical applications
This motor is used in:
- CNC vertical machining centers (heavy-duty)
- large milling machines
- production machining lines
- medium-to-heavy metal cutting operations
It is chosen when machines need:
- high cutting torque at low/medium speed
- stable continuous operation under load
- durability for industrial production
⚖️ Where it fits in Mitsubishi spindle lineup
| Series | Role |
|---|---|
| SJ-DL | Ultra-high-speed tapping/drilling |
| SJ-DJ | Compact/lightweight spindles |
| SJ-V | General-purpose & heavy machining spindles |
| SJ-DG | High dynamic / high torque advanced cutting |
🧠 Simple explanation
SJ-V18.5-01ZT is a high-power (18.5 kW) CNC spindle motor designed for heavy machining centers, prioritizing cutting torque and stability rather than high-speed operation.