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Direct Drive AC Servo Motor

Standard models to custom design for smooth and precision rotation tailored to the application specifics

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Custom model examples

Flat table type

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Excellent winding technologies enable ultra low profile pancake designs.  Suitable as θ axis for multi-axis stages 

Flat table type

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Extremely smooth rotation and high precision positioning as DD motor, even as low profile designs 

Custom connectors

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Custom housing is available for special connectors and other application specific requirements  

Thermal control housing

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Custom housing with heat sink for thermal control requirements 

Special flange

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Custom flanges and outside machining for mounting requirements 

Custom windings

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Custom winding is available from small volume for hollow design requirements 

Standard series

  • Absolute acuracy:Max +/- 15arc-sec (DS100)、Max +/- 3arc-sec (DS145/175)
  • Repeatability:Max +/- 0.5 arc-sec
  • Speed:Max 3,670 RPM
  • Feedback options:Incremental encoder, Absolute encoder, Resolver, Hall sensor, 1Vpp sin/cos
  • Mechanical runout:lowest 10μ 
  • Up to 16 poles for superior slow speed performance 


DS100

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  • Rotating diameter:100 mm
  • Height:80〜119 mm
  • Output power:100〜280 W
  • Continuous torque:0.5〜1.7 N.m
  • Peak torque:3.5〜8.9 N.m
  • Rated axial load:100 N
  • Rated moment load:300 N.m


DS145

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  • Rotating diameter:145 mm
  • Height:95〜135 mm
  • Output power:360〜1,500 W
  • Continuous torque:2.4〜9.9 N.m
  • Peak torque:7.9〜41.8 N.m
  • Rated axial load:500 N
  • Rated moment load:1,500 N.m


DS175

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  • Rotating diameter:175 mm
  • Height:130〜235 mm
  • Output power:750〜3,000 W
  • Continuous torque:6.7〜29.4 N.m
  • Peak torque:28.0〜118.9 N.m
  • Rated axial load:1,000 N
  • Rated moment load:3,000 N.m