ADRA DD-Type Servo Actuator


  • Direct Drive
  • 5N.m Max Torque
  • Repeatability ±0.005 ˚
  • Hollow Shaft
          ADRA will be shipped in 4-6 weeks (Except for the samples). If you have special needs, please contact us before placing an order.
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Driving the revolutionary UTRA/OPTI series is Umbratek’s ADRA series Actuator. Each ADRA Actuator is built to last and comes with a high-precision harmonic reducer made of high-strength aviation aluminum and high-carbon chromium steel.


A high-torque density and compact structure enable the motor to be integrated into the actuator and lessens the actuator weight.

Each actuator is fitted with high-performance servo drivers, which use field-oriented control, to protect against overvoltage, overcurrent, over-temperature, reverse connection, undervoltage ESD, short-circuiting, and rotor lock. The ADRA series also uses dual GMR+TMR hybrid detection technology and comes with a 16-bit off-axis multi-turn absolute encoder.







Umbratek’s ADRA series actuators, integrating with harmonic reducer, can meet multiple requirements and be appliable to many tasks. It can not only build up a robot arm, quadruped robot, and humanoid robot, but also be used in industrial automation, logistic system, agricultural machinery, and so much more.


Umbratek Assistant

Umbratek Assistant offers a user-friendly graphic menu operating system with a real-time graphic display.

It gives you intuitive control of your ADRA series actuators.



Learn More (Download Center)





Additional information

Weight 1 kg
Dimensions 14 × 14 × 15 cm
Motor Model

DD-A055, DD-A056, DD-A062, DD-A063, DD-A071, DD-A072, DD-A085, DD-A086, DD-A112, DD-A113

Interface Type

RS485, CAN


Multi-turn ABS 16bit, Multi-turn ABS 19bit


Brake, Without Brake

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