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HF-SP81MK-S2

The Mitsubishi HF-SP81MK-S2 is a high-performance, 8.1kW (10.9HP) AC spindle motor designed for precision CNC machining applications. This 200V class motor delivers exceptional speed stability and high torque output for demanding cutting operations.

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Key Specifications
Parameter Specification
Rated Output 8.1kW (10.9HP)
Rated Speed 1500/2000/3000 rpm (multi-range)
Max Speed 6000 rpm (with overspeed option)
Rated Torque 51.6 N·m
Pole Number 4 poles
Frame Size 180mm
Protection IP44 (splash-proof)
Cooling Forced air (built-in fan)
Weight 78kg
Technical Highlights
High-Performance Design

High-torque output at low speeds

Wide constant power range (1:4~1:8)

Precision balanced rotor for smooth operation

Spindle-Specific Features

High-rigidity bearings for axial/radial loads

Built-in encoder (1024ppr standard)

Optional orientation unit for tool changing

Durability Features

Double-sealed construction

Corrosion-resistant paint coating

50,000-hour bearing life under normal use

System Integration

Compatible with MDS-D/DH-SP series drives

Works with Mitsubishi CNC systems

Plug-and-play installation

Typical Applications
Vertical machining centers

Precision milling machines

Die/mold machining

Composite material processing

General purpose CNC machining