Description
The Mitsubishi MDS-EH-SP-600 is the largest-capacity CNC spindle drive unit (AC spindle amplifier) in the MDS-EH series, designed for extremely high-power spindle motor applications in heavy industrial CNC systems.
🔧 Description
- Product type: CNC spindle drive / spindle amplifier
- Series: MDS-EH
- Model: MDS-EH-SP-600
- Manufacturer: Mitsubishi Electric
- Function: Controls spindle motor speed, torque, orientation, rigid tapping, and heavy-duty machining operations
- Application: Large gantry machines, heavy machining centers, massive turning centers, and continuous industrial production systems
- Control method: Sine-wave PWM vector spindle control
- Cooling: Forced-air cooling
- Protection class: IP20 (excluding terminal block)
The MDS-EH series is Mitsubishi’s high-performance CNC servo/spindle platform featuring high-speed optical communication, advanced diagnostics, STO safety support, and high-gain control.
⚙️ Main Specifications
- Drive type: 1-axis spindle amplifier
- Nominal maximum current: 600A
- Rated output current: 200A
- Rated output voltage: 323VAC
- DC bus input voltage: 513–700V DC
- Rated DC input current: 200A
- Control power supply: 380–480V AC, 50/60Hz
- Control method: Sine-wave PWM control
- Braking: Regenerative braking
- External analog output: 0 to +5V, 2 channels
- Cooling method: Forced-air cooling
- Weight: Approx. 20.1 kg
- Heat radiation at continuous rated output: 2349W
🏭 Typical Applications
- Large gantry machining systems
- Heavy-duty aerospace machining centers
- Large boring and milling machines
- High-power production spindle systems
- Continuous heavy metal cutting operations
- High-inertia spindle applications
📌 Main Features
- High-speed vector spindle control
- Rigid tapping / synchronized tapping
- Spindle orientation control
- Constant surface speed control
- High torque at low RPM
- Regenerative braking support
- High-speed optical CNC communication
- Integrated diagnostics and preventive maintenance functions
- STO (Safe Torque Off) support
📊 Position in the SP Series
| Model | Typical Class |
|---|---|
| SP-20 | Light spindle systems |
| SP-40 | Medium spindle systems |
| SP-80 / SP-100 | High-power spindle systems |
| SP-160 / SP-200 | Very high-power spindle systems |
| SP-320 | Ultra heavy-duty spindle systems |
| SP-480 | Extreme heavy-duty spindle systems |
| SP-600 | Maximum-capacity MDS-EH spindle drive |
The SP-600 is the top-end spindle amplifier in the standard MDS-EH spindle lineup.
⚠️ Important Notes
- SP models are spindle amplifiers, not servo axis drives
- Requires Mitsubishi CNC controllers such as M70 / M700 / M800 series
- Must be matched with compatible Mitsubishi spindle motors and encoder systems
- Requires substantial cabinet cooling and power infrastructure due to very high heat dissipation and current capacity
- Some installations use boosted DC bus systems (up to 700VDC) with compatible converter units such as MDS-EX-CVP-1100H.