Description
SJ-DL5.5/200-01T is a Mitsubishi Electric SJ-DL series low-inertia CNC spindle motor, designed for high-speed drilling and tapping machines, especially where fast acceleration and high RPM are more important than cutting torque.
This is a well-documented model in Mitsubishi’s SJ-DL spindle lineup.
🔧 Key specifications (SJ-DL5.5/200-01T)
| Parameter | Value |
|---|---|
| Series | SJ-DL (Low inertia spindle motor) |
| Continuous rated output | 3.7 kW |
| Short-time rated output | 5.5 kW (15 min / 25% ED) |
| Acceleration/deceleration output | 11 kW |
| Actual accel/decel output | 13.2 kW |
| Base speed | 2500 rpm |
| Max constant output speed | 20,000 rpm |
| Maximum speed | 20,000 rpm |
| Continuous torque | 14.1 N·m |
| Motor inertia | 0.0046 kg·m² |
| Frame type | C90 class (200-frame family) |
| Flange size | 174 mm square |
| Shaft diameter | Ø22 mm |
| Weight | ~28 kg |
| Cooling | Machine-integrated (no fan) |
| Protection | IP54 (shaft excluded) |
⚙️ What this motor is used for
This motor is designed for:
- CNC tapping machines
- high-speed drilling centers
- light machining spindles
- production machines with very short cycle times
It is optimized for:
- ⚡ extremely fast spin-up/spin-down
- 🔁 frequent start/stop cycles
- 🎯 high-speed precision drilling/tapping
🧠 What “200-01T” means
- /200 → high-speed spindle configuration (up to ~20,000 rpm class)
- 01 → standard design revision
- T → through-spindle / hollow shaft type (coolant or tool-through capability)
⚖️ Position in SJ-DL family
| Model | Focus |
|---|---|
| SJ-DL5.5/150 | Balanced high-speed tapping (15,000 rpm class) |
| SJ-DL5.5/200 | Higher-speed tapping/drilling (20,000 rpm class) |
| SJ-DL5.5/240 | Ultra high-speed micro drilling (extreme response) |
🧠 Simple explanation
SJ-DL5.5/200-01T is a high-speed CNC spindle motor designed for drilling and tapping applications, capable of up to ~20,000 rpm with very low inertia for extremely fast response.