Contromax

Contromax is a specialist developer of electromechanical servo actuators for UAVs (unmanned aerial vehicles). With over 15 years of experience in advanced motion control technology development, we provide high-precision solutions that can withstand the punishing conditions experienced during high-altitude and long-endurance unmanned flight.

Backed by a leading European motor supply partner, we can deliver our servo products in large quantities with short lead times.

To find our more about how we create our cutting-edge servo actuators and what sets us apart from other developers, watch the video below.

ServoMax

Aviation-grade servo actuators

The ServoMax product line has been created specifically to serve the needs of advanced UAV applications such as heavy-lift cargo drones and UAM (urban air mobility). The robust servos are ideal for a wide range of safety-critical applications such as control of wing surfaces, swashplates, brakes and payload bay doors.

The advanced designs utilize BLDC (brushless DC) and PMS (permanent magnet synchronous) motors in conjunction with analog Hall effect sensors and contactless encoders for precise control of rotor position maximizing efficiency, lifetime and minimizing jitter.

The rugged servos are constructed with hard-wearing hardened steel gears and an anodized aluminium housing. All models undergo a thorough regime of environmental testing to MIL-STD-810 and MIL-STD-461 standards, with some models also satisfying DO-160. These tests include the below, and were/are performed when deemed necessary:

• EMC – Conducted emissions
• EMC – Conducted susceptibility
• EMC – Radiated emissions
• EMC – Radiated susceptibility
• Extremes of temperature
• Shock & vibration
• Acceleration
• Altitude
• Rain & salt spray
• Sand & dust

More information: Aviation-grade servo actuators for UAVs

ServoMax 12

Rugged servo actuator with dual CAN & PWM interfaces

Our latest product offering, the ServoMax 12, is the first UAV servo actuator on the market to provide both PWM and CAN interfaces simultaneously. Featuring the same high performance and safety-critical design as the other entries in the ServoMax range, it weighs just 38 grams and delivers up to 5.2 kgf-cm of torque.

• Weight 38g
• Rated Torque 2.6 kgf-cm
• Max Torque 5.2 kgf-cm
• Hardened steel in all gears
• Max. Speed 430°/sec @ 7.4VDC
• PWM & CAN Interfaces