Mitsubishi M80 Tool Spindle Motor HG75-D48

🔧 Mitsubishi HG75-D48 – Description

The HG75-D48 (often written as HG75S-D48) is a Mitsubishi Electric HG Series AC servo motor used mainly in CNC machine tool feed axes and industrial automation systems.

It belongs to the mid-power HG frame class, designed for stable positioning, fast response, and medium-load axis movement.

⚙️ Key Description

• Series: Mitsubishi HG (MELSERVO-J4 / MDS compatible family)
• Type: AC brushless rotary servo motor
• Encoder: 20-bit absolute encoder (D48 type, ~1,048,576 pulses/rev)
• Application: CNC feed axes (X/Y/Z), automation machines, positioning systems
• Voltage class: 200 VAC industrial servo system

📊 Electrical & Performance Specs (HG75 class)

From Mitsubishi HG series specifications:

• Rated output: 0.75 kW
• Rated torque: 1.8 N·m
• Rated speed: 4000 rpm
• Maximum speed: 5000 rpm
• Maximum torque: ~8.0 N·m
• Motor inertia: ~2.62 ×10⁻⁴ kg·m²

🧩 Mechanical Features

• Frame size: ~90 mm class flange motor
• Protection: IP67 (shaft excluded)
• Construction: Fully enclosed industrial servo motor
• Design: Low inertia for fast acceleration/deceleration
• Mounting: Standard CNC servo flange mounting

⚙️ Functional Characteristics

• Designed for precise CNC axis control (not spindle rotation)
• Optimized for:
  • High-speed positioning
  • Smooth low-speed movement
  • Continuous interpolation in CNC systems
• Works with Mitsubishi MELSERVO servo drives (MR-J / MDS systems depending on machine)

🏭 Typical Applications

The HG75-D48 is commonly used in:

• CNC machining center feed axes (X, Y, Z)
• Small-to-medium industrial automation systems
• Pick-and-place machines
• Indexing tables and positioning systems
• Light industrial robotics

⚠️ Important Note

• ❌ Not a spindle motor (like SJ series)
• ❌ Not a linear motor (like LM series)
• ✅ It is a rotary servo axis motor for motion control

⚡ Summary

The HG75-D48 is:

• • A 0.75 kW Mitsubishi servo motor
  • High-speed (up to ~5000 rpm)
  • Equipped with a 20-bit absolute encoder
  • Designed for precise CNC axis movement and positioning