Mitsubishi M80 Servo Motor SJ-4-V45-02T
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Mitsubishi M80 Servo Motor SJ-4-V45-02T

Mitsubishi M80 Servo Motor SJ-4-V45-02T

JJAutomationSKU: SJ-4-V45-02T
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Description


The Mitsubishi SJ-4-V45-02T is a high-power AC spindle motor (37 kW class) from the Mitsubishi Electric SJ-4-V series, used in large CNC machine tool spindle systems such as heavy milling and turning centers.

Key Specifications (SJ-4-V45-02T)

Specification Value
Series SJ-4-V Series
Motor Type AC Spindle Motor
Rated Output 37 kW (continuous)
Short-Time Output 45 kW (30-minute rating)
Acceleration Output 45 kW standard, ~54 kW peak
Base Speed 1500 rpm
Maximum Speed 4500 rpm
Continuous Torque 236 N·m
Frame Size B180
Flange Size 320 SQ
Shaft Diameter 60 mm
Inertia 0.34 kg·m²
Mass ~300 kg
Protection Class IP44
Cooling Self-cooled
Drive Compatibility Mitsubishi MDS-D / MDS-DH spindle amplifiers

📌 Source: Mitsubishi Electric SJ-4-V series specification manual (MDS-D/DH2 system data)

Features

  • Designed for CNC spindle operation (not servo axis motor)
  • Very high power class (45 kW short-time rating) for heavy cutting
  • Strong torque output (236 N·m) for large machining loads
  • Stable low-speed cutting performance (1500 rpm base speed)
  • Built-in encoder feedback for precise spindle control
  • Heavy-duty B180 frame for large machine tools

Typical Applications

  • Large CNC machining centers
  • Heavy-duty milling machines
  • CNC turning and boring machines
  • Metal cutting and forming systems
  • Industrial high-load production lines

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