HARDWARE / PRODUCTAdded 9 Sep 2026

Model 863 Rotary Actuator

Moog Space Defense Group
Model 863 Rotary Actuator

The Model 863 is a high-performance rotary servo electromechanical actuator designed for flight control, throttle control, and other utility functions in UAV and aerospace programs.

Typed specifications41 values

Discloses 6 of 9 fields engineers filter by in this category (category median 2).

Mass
907.18 g
max · 2.0 lbm max · datasheet p.3
Travel range per axis
-45–45 deg
electrical stroke, electronically limited · datasheet p.3 -51.5–51.5 deg mechanical stroke
Output torque
23 726.85 mN·m
power point @ 120 deg/sec · datasheet p.3 36 155.2 mN·m max · peak stall torque, electronically limited
Supply voltage
21 V
min · Model 86300000-05 · datasheet p.3 18 V min · Model 86300000-40  |  21 V min · Model 86300000-50  |  32 V max · Model 86300000-05  |  32 V max · Model 86300000-40  +3
Data interface
RS-485
4 wire RS-485 full duplex, 115.2 Kbaud · datasheet p.3 RS-485 Model 86300000-05  |  other Model 86300000-40  |  RS-485 Model 86300000-50
Operating temperature
-40–71 °C
datasheet p.3 -20–70 °C Humidity and Altitude
Export status
ITAR
falls under the jurisdiction of the ITAR · datasheet p.5
Mechanism type
single-axis rotary actuator
datasheet p.1
Axes
1
datasheet p.1
Motor type
brushless DC (BLDC)
rare earth brushless DC motor, brushless permanent magnet · datasheet p.1
Transmission
spur or worm gear
4 stage spur gear train assembly · datasheet p.2
Max payload inertia
2.35 kg·m²
max · maximum shaft inertia · datasheet p.3
Backlash
21 deg
max · with +/-10 in-lbf reversing load applied to shaft · datasheet p.3
Holding torque (unpowered)
3.75 mN·m
max · unpowered backdrive torque · datasheet p.3
Drive electronics
integrated
integrated servo loop control electronics · datasheet p.1
Random vibration
8.27 g RMS
captive carry, endurance random, MIL-STD-810G 514.6 Proc IV · datasheet p.2 4.76 g RMS captive carry, functional random  |  14 g RMS free flight, boost, 24 sec/axis  |  7 g RMS free flight, remainder, 12 min/axis
Quasi-static load
20 g
linear acceleration, longitudinal axis (thrust) · datasheet p.2 15 g linear acceleration, vertical and lateral axis
Shock qualification
20 g
mechanical shock, 11 ms saw tooth · datasheet p.2 40 g mechanical shock, 6 ms saw tooth  |  300 g operating shock - booster separation, 6 pulses, 1 ms
Slew speed
180 °/s
No Load Speed @ 28 VDC, nominal · datasheet p.3 120 °/s power point at 210 in-lbf  |  180 °/s nom. · no load @ 28 VDC
Position feedback
other
single film position transducer · datasheet p.2

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier7 lines, in the manufacturer's own wording
Operating Voltage
18 to 32 VDC
Operating Temperature Range
-40° to +71° C
Operating Altitude Range
Up to 50,000 ft
Mechanical Stroke
±51.5°
Electrical Stroke
±45.0° - electronically limited
No Load Speed @ 28 VDC
180° / sec, nominal
Water immersion
to 3 meters

About

The Model 863 Rotary Servo Actuator is engineered to be submersible up to 3 meters for a maximum of 3 hours, making it suitable for diverse applications including target drones. This high-performance rotary servo electromechanical actuator integrates a rare earth brushless DC motor and servo loop control electronics. The 863 servo is utilized for flight control, throttle control, and other utility functions in UAV and aerospace programs. These actuators are built to operate under extreme environmental conditions and are designed for easy integration into customer systems. Key features include integrated position servo loop control with either analog or digital communications, non-jamming mechanical stops, a 4-stage spur gear train assembly, and a corrosion-protected finish output shaft. It also boasts a brushless permanent magnet motor design, high torque capacity in a small volume, a single film position transducer, and digital telemetry feedback. Electronic stops limit input command, and the signal interface is digital RS-485 electrical protocol, with other signal interfaces available upon factory consultation. A thermal management option is also available for high-altitude applications, and it supports water immersion up to 3 meters.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.moog.com ↗

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