Description
The Mitsubishi SJ-4-V5.5-07T is a 5.5 kW AC spindle motor from the Mitsubishi Electric SJ-4-V series, designed for CNC machine tool spindle applications such as milling and turning centers.
Key Specifications (SJ-4-V5.5-07T)
| Specification | Value |
|---|---|
| Series | SJ-4-V Series |
| Motor Type | AC Spindle Motor |
| Rated Output | 5.5 kW (short-time rating) |
| Continuous Output | ~3.7 kW (typical duty range) |
| Rated Torque | ~23.5 N·m |
| Base Speed | 1500 rpm |
| Maximum Speed | up to 10,000 rpm |
| Frame Size | 174 SQ class |
| Shaft Type | Straight shaft |
| Encoder | Absolute feedback encoder (built-in) |
| Voltage Class | 400 VAC |
| Drive Compatibility | Mitsubishi MDS-D / MDS-DH spindle drives |
Features
- Designed for CNC spindle rotation (not servo axis use)
- High short-time power (5.5 kW) for heavy cutting loads
- Stable torque output for machining consistency
- Integrated absolute feedback encoder for precise spindle control
- Compatible with Mitsubishi CNC spindle amplifier systems (MDS series)
- Rugged industrial design for machine tool environments
Typical Applications
- CNC milling machines (main spindle)
- CNC turning centers (lathe spindle)
- Medium–heavy cutting operations
- Metal machining centers
- Industrial CNC production machines