Model 935 Rotary Actuator
Moog Space Defense Group
The Model 935 is a high-performance rotary servo actuator available with digital and analog communications interfaces, offering customization for angular excursion and flexible integration into various system architectures.
Typed specifications26 values
Discloses 6 of 9 fields engineers filter by in this category (category median 2).
- Mass
- 1.77 kg max · Model 93500000-34, 3.9 lbm max · datasheet p.3 1.68 kg max · Model 93500000-36, 3.7 lbm max
- Travel range per axis
- -45–45 deg electrical stroke, electronically limited · datasheet p.3 -50–50 deg mechanical stroke
- Output torque
- 67 791 mN·m nom. · peak stall torque, electronically limited · datasheet p.3 16 947.75 mN·m continuous stall torque | 39 544.75 mN·m power point @ 120 deg/sec, Model 93500000-34 | 31 635.8 mN·m power point @ 60 deg/sec, Model 93500000-36
- Supply voltage
- 21–32 V Operating · datasheet p.3
- Data interface
- RS-485 4 wire RS-485 full duplex, Model 93500000-34 · datasheet p.3 RS-485 electrical protocol | other Model 93500000-36
- Operating temperature
- -40–71 °C datasheet p.3
- Export status
- ITAR datasheet p.5
- Mechanism type
- single-axis rotary actuator datasheet p.1
- Axes
- 1 datasheet p.1
- Motor type
- brushless DC (BLDC) brushless permanent magnet motor design · datasheet p.2
- Transmission
- spur or worm gear 4 stage spur gear train assembly · datasheet p.2
- Max payload inertia
- 81 kg·m² max · maximum shaft inertia, Model 93500000-34 · datasheet p.3 520 kg·m² max · maximum shaft inertia, Model 93500000-36
- Backlash
- 36 deg max · datasheet p.3
- Holding torque (unpowered)
- 15 mN·m max · unpowered backdrive torque · datasheet p.3
- Drive electronics
- integrated integrated position servo loop control · datasheet p.2
- Slew speed
- 180 °/s no load @ 28 VDC, nominal - electronically limited · datasheet p.3 180 °/s nom. · no load @ 28 VDC, Model 93500000-34 | 90 °/s nom. · no load @ 28 VDC, Model 93500000-36
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 supplier4 lines, in the manufacturer's own wording
- Operating Voltage
- 21 to 32 VDC
- Operating Temperature Range
- -40° to +71° C
- Operating Altitude Range
- -1,500 to +65,000 ft
- Weight
- 3.7 - 3.9 lbm max
About
The Model 935 Rotary Servo Actuator is one of the highest performance rotary servo actuators available on the market. It is offered with both digital and analog communications interfaces. The actuator can be customized to provide up to ±90 degree angular excursion in a slightly longer package, allowing customers flexibility based upon the architecture in the system to have a drop-in servo actuator. Key features include integrated position servo loop control, non-jamming mechanical stops, a 4-stage spur gear train assembly, and a stainless steel output shaft with a 0.5 inch SAE spline. It utilizes a brushless permanent magnet motor design with high temperature capability, electronic stops to limit input command, and an NTC thermistor in the motor for temperature sensing of motor windings. Outputs for current, velocity, and temperature telemetry are provided, with a digital RS-485 electrical protocol for the signal interface. A thermal management option is also available for high-altitude applications. The robust structural design, mechanical stops, low weight to power performance, and customizability are significant benefits. Typical applications include control surfaces requiring servo actuation in unmanned air vehicles (tactical, medium long endurance, MALE/HALE), control surfaces and speed brakes for target drones, and utility actuation such as throttle control, doors, and spoilers. It is also suitable for electric aircraft, eVTOL, eSTOL, air taxis, and urban air mobility vehicles for tilting mechanisms, flight control, and landing gear.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.