Mitsubishi M80 Spindle Drive MDS-EH-SP-80

The Mitsubishi MDS-EH-SP-80 is a high-power CNC spindle drive unit (AC spindle amplifier) from the MDS-EH series, designed to control the main spindle motor in Mitsubishi CNC machine tools.

🔧 Description

• Product type: CNC spindle drive / spindle amplifier
• Series: MDS-EH
• Model: MDS-EH-SP-80
• Manufacturer: Mitsubishi Electric
• Function: Controls spindle motor speed, torque, acceleration, orientation, and tapping operations
• Application: CNC lathes, machining centers, milling machines, and heavy industrial cutting systems
• System type: High-voltage DC-bus CNC spindle drive system
• Cooling: Integrated forced-air cooling
• Protection class: IP20 (cabinet installation)

⚙️ Key Specifications

• Drive type: 1-axis spindle amplifier
• Nominal maximum current: 80A
• Rated capacity: 13.1 kVA class
• Input voltage:
  • 3-phase 380–480V AC
  • DC bus: 513–648V DC
• Output frequency range: 0–833 Hz
• Motor compatibility:
  • Induction spindle motors (IM)
  • Permanent magnet spindle motors (IPM)
• Communication: High-speed optical CNC interface
• Cooling method: Fan-cooled spindle module

🏭 Typical Applications

• CNC turning centers
• Vertical machining centers (VMC)
• Heavy milling machines
• High-speed spindle systems
• Production machining lines

📌 Main Features

The MDS-EH-SP series supports advanced CNC spindle functions including:

• Spindle orientation control
• Rigid tapping / synchronous tapping
• Constant surface speed control
• High-response acceleration/deceleration
• Torque limiting
• Dual-feedback spindle control
• Adaptive notch filtering and vibration suppression
• STO (Safe Torque Off) safety support

📊 Position in the SP Series

• SP-20 → light spindle systems
• SP-40 → medium spindle systems
• SP-80 → high-power industrial spindle systems
• SP-160 / SP-200 → very large spindle applications

⚠️ Important Notes

• SP models are spindle drives, not feed-axis servo drives
• Requires Mitsubishi CNC controllers such as M70/M700 series
• Must be matched with compatible Mitsubishi spindle motors and encoder systems
• Designed for industrial control cabinet installation only