Mitsubishi M80 Servo Motor SJ-4-V15-20T
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Mitsubishi M80 Servo Motor SJ-4-V15-20T

Mitsubishi M80 Servo Motor SJ-4-V15-20T

JJAutomationSKU: SJ-4-V15-20T
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Description


The Mitsubishi SJ-4-V15-20T is a 15 kW class AC spindle motor from Mitsubishi Electric’s SJ-4-V series, used in CNC machine tool spindle applications (milling and turning centers).

Key Specifications (SJ-4-V15-20T)

Specification Value
Series SJ-4-V Series
Motor Type AC Spindle Motor
Rated Output 7.5 kW (continuous)
Short-Time Output 9 kW (30-minute rating)
Acceleration Output 9 kW standard, ~10.8 kW peak
Base Speed 750 rpm
Maximum Speed 6000 rpm
Continuous Torque 95.5 N·m
Continuous Current 36 A
Frame Size A160
Flange Size 250 SQ
Shaft Diameter 48 mm
Inertia 0.06 kg·m²
Protection Class IP44
Voltage 3-phase 400V
Drive Compatibility Mitsubishi MDS-D / MDS-DH spindle amplifiers

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

Features

  • Designed for CNC spindle operation (not servo axis motor)
  • High torque output (95.5 N·m) for heavy cutting
  • Stable low-speed machining (750 rpm base speed)
  • Reliable operation up to 6000 rpm
  • Built-in encoder feedback for precise spindle control
  • Heavy-duty A160 frame for industrial machine tools

Typical Applications

  • CNC milling machines (main spindle)
  • CNC turning centers (lathe spindle)
  • Heavy-duty machining centers
  • Metal cutting and forming systems
  • Industrial CNC production machines

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