Mitsubishi M80 Spindle Drive MDS-EH-SP-200

The Mitsubishi MDS-EH-SP-200 is a very high-power CNC spindle drive unit (AC spindle amplifier) from the MDS-EH series, designed for heavy industrial machining applications and large spindle motors.

🔧 Description

• Product type: CNC spindle drive / spindle amplifier
• Series: MDS-EH
• Model: MDS-EH-SP-200
• Manufacturer: Mitsubishi Electric
• Function: Controls spindle motor speed, torque, orientation, acceleration/deceleration, and rigid tapping
• Application: Large CNC machining centers, gantry machines, heavy lathes, and production machining systems
• Control method: Digital vector spindle control with sine-wave PWM output
• Cooling: Forced-air cooling
• Protection class: IP20 (cabinet installation)

⚙️ Main Specifications

• Drive type: 1-axis spindle amplifier
• Nominal maximum current: 200A
• Rated output voltage: 323VAC
• Rated output current: 90A
• DC bus input voltage: 513–648V DC
• Rated DC input current: 82A
• Control power supply: 380–480V AC, 50/60Hz
• Output frequency range: 0–1167Hz
• Approximate power class: 37kW spindle drive
• Cooling method: Forced-air cooling
• Weight: Approx. 15.4kg / 40lb class
• Heat radiation at rated output: 872W

🏭 Typical Applications

• Large CNC machining centers
• Heavy-duty milling machines
• High-power turning centers
• Gantry machining systems
• Continuous production machining lines
• High-inertia spindle systems

📌 Main Features

• High-speed vector spindle control
• Rigid tapping / synchronized tapping
• Spindle orientation control
• Constant surface speed control
• High torque at low RPM
• Optical high-speed CNC communication
• Integrated diagnostics and protection functions
• Compatible with induction and permanent-magnet spindle motors

📊 Position in the SP Series

• SP-20 → light spindle systems
• SP-40 → medium spindle systems
• SP-80 → high-power spindle systems
• SP-100 → heavy-duty spindle systems
• SP-160 → very high-power spindle systems
• SP-200 → ultra heavy-duty industrial spindle systems

⚠️ Important Notes

• SP models are spindle amplifiers, not feed-axis servo amplifiers
• Requires Mitsubishi CNC controllers such as M70 / M700 / M800 series
• Must be matched with compatible Mitsubishi spindle motors and encoder systems
• Designed only for industrial electrical cabinet installation
• In newer Mitsubishi platforms, some SP-200 models are superseded by the MDS-DH2-SP-200 generation