Contromax specializes in the advancement of electromechanical servo actuators tailored for UAVs (unmanned aerial vehicles). With a rich history spanning over 15 years in cutting-edge motion control technology, we offer precision solutions designed to endure the extreme conditions encountered during high-altitude and long-duration unmanned flights.Partnered with a top-tier European motor supplier, we ensure the availability of our servo products in significant quantities and with minimal lead times.To discover how we engineer our state-of-the-art servo actuators and what differentiates us from other manufacturers, check out the video below.
ServoMax Series
High-performance aviation-grade servo actuators
The ServoMax series is meticulously designed to meet the demands of complex UAV applications, including heavy-lift cargo drones and urban air mobility (UAM). These durable servos are perfect for various safety-critical functions, such as controlling wing surfaces, swashplates, brakes, and payload bay doors.
Our innovative designs incorporate BLDC (brushless DC) and PMS (permanent magnet synchronous) motors, paired with analog Hall effect sensors and contactless encoders, ensuring precise rotor position control that enhances efficiency and longevity while reducing jitter. The rugged servos feature durable hardened steel gears and anodized aluminum casings. Each model undergoes rigorous environmental testing in accordance with MIL-STD-810 and MIL-STD-461 standards, with select models also meeting DO-160 criteria. The tests conducted include:
- EMC – Conducted emissions
- EMC – conducted susceptibility
- EMC – Radiated emissions
- EMC – Radiated susceptibility
- Temperature extremes
- Shock and vibration
- Acceleration
- Altitude
- Rain and salt spray
- Sand and dust
ServoMax 20
- Weight: 138g
- Rated Torque: 10 kgf-cm
- Max Torque: 13 kgf-cm
- Rated Speed: 100°/sec @ 14.8VDC
- CAN2.0B interface
ServoMax 25
- Weight: 286g
- Rated Torque: 30 kgf-cm
- Max Torque: 48 kgf-cm
- Rated Speed: 150°/sec @ 28VDC
- Dual CAN2.0B interfaces
ServoMax 50
- Weight: 345g
- Rated Torque: 50 kgf-cm
- Max Torque: 76 kgf-cm
- Rated Speed: 160°/sec @ 28VDC
- Dual CAN2.0B Interfaces
ServoMax 100
- Weight: 615g
- Rated Torque: 81 kgf-cm
- Max Torque: 124 kgf-cm
- Rated Speed: 140°/sec @ 28VDC
- Dual CAN2.0B Interfaces
ServoMax 150
- Weight: 885g
- Rated Torque: 132 kgf-cm
- Max torque: 228 kgf-cm
- Rated Speed: 160°/sec @ 28VDC
- Dual CAN2.0B Interfaces
ServoMax 300
- Weight: 1.39kg
- Rated Torque: 255 kgf-cm
- Max Torque: 447 kgf-cm
- Rated Speed: 140°/sec @ 28VDC
- Dual CAN2.0B Interfaces
ServoMax 500
- Weight: 1.87kg
- Rated Torque: 400 kgf-cm
- Max Torque: 760 kgf-cm
- Rated Speed: 90°/sec @ 28VDC
- Dual CAN2.0B Interfaces
For further details: Aviation-grade servo actuators for UAVs
Introducing ServoMax 12
Durable servo actuator with dual CAN & PWM interfaces
Our newest addition, the ServoMax 12, is the first UAV servo actuator available that supports both PWM and CAN interfaces simultaneously. Weighing only 38 grams, it delivers a torque of up to 5.2 kgf-cm while maintaining the high performance and safety-critical design characteristic of the ServoMax range.
- Weight: 38g
- Rated Torque: 2.6 kgf-cm
- Max Torque: 5.2 kgf-cm
- Hardened steel gears
- Max Speed: 430°/sec @ 7.4VDC
- PWM & CAN Interfaces
