Description
The Mitsubishi MDS-E-SP-640 is a very high-capacity 1-axis CNC spindle drive unit from Mitsubishi Electric’s MDS-E series, designed for controlling large SJ-series AC spindle motors in heavy-duty CNC machining systems.
It is a spindle amplifier/drive, not a motor.
Key Specifications (MDS-E-SP-640)
| Specification | Value |
|---|---|
| Series | MDS-E Series |
| Type | 1-axis spindle drive unit |
| Drive Category | CNC spindle amplifier |
| Nominal Maximum Current (Peak) | 640 A |
| Rated Input Voltage | 270–324 VDC |
| Rated Input Current | 210 A |
| Control Power Supply | 200–240 VAC |
| Control Frequency | 50/60 Hz |
| Control Method | Sine wave PWM control |
| Cooling Method | Forced air cooling |
| Protection Rating | IP20 (excluding terminal block) |
| Approx. Weight | ~16.5 kg |
| Outline Drawing Class | E1 |
| Operating Temperature | 0°C to +55°C |
📌 Mitsubishi Electric MDS-E Series specification tables list the MDS-E-SP-640 as the largest-capacity spindle drive in the range.
Features
- Designed for Mitsubishi SJ-series spindle motors
- Extremely high-capacity spindle control for heavy machining loads
- Stable spindle speed and torque regulation
- Supports spindle orientation and rigid tapping
- High-response acceleration/deceleration control
- Modular CNC cabinet integration design
- Forced-air cooling for continuous industrial-duty operation
Typical Applications
- Large CNC machining centers
- Heavy-duty milling machines
- CNC boring and turning machines
- Industrial metal cutting systems
- Large spindle motor applications
- High-load automated machining equipment
Compatible Motor Examples
The MDS-E-SP-640 is commonly paired with very high-power Mitsubishi spindle motors such as:
- SJ-4-V37 series
- SJ-4-V45 series
- SJ-4-V55 series
Compatibility depends on spindle load, acceleration requirements, and machine configuration.