With the rapid development of the low-altitude economy and commercial UAV markets (e.g., logistics, surveying, inspection), all component designs in the aerospace and UAV sectors follow the principles of “minimum weight” and “maximum reliability.” As critical execution components (for propulsion or actuation), motors face extreme challenges: 1) Extreme Power-to-Weight Ratio: Every gram is meticulously calculated; motors must provide maximum power and torque at the lightest possible weight. 2) Extreme Environment Adaptability: Stable performance must be maintained under extreme conditions, including high/low temperatures (e.g., -55°C to +150°C), low atmospheric pressure (high altitude), and severe vibration/shock. 3) High Dynamic Response: Millisecond-level response speed is required for both rotor speed control and flight surface actuation.
AKT Product Solution
AKT provides customized drive units for the aerospace sector, centered on specialty Brushless DC Motors (BLDC) and Precision Planetary Gearboxes.
- High Power-to-Weight Solution (Propulsion):
For UAV rotor propulsion, our high-power, high-speed BLDC motors (often outrunner or flat/frameless designs) are the core. By using high-grade rare-earth magnets, lightweight high-strength alloys, and advanced electromagnetic simulation, our motors achieve a power output far exceeding conventional motors at the same weight. Their high efficiency (>90%) maximizes the UAV’s flight endurance. - High-Precision Servo-Actuator Solution (Actuators/Gimbals):
Precision position control is key for flight control surfaces, gimbal stabilization, or satellite antenna pointing. We provide integrated servo-actuators combining a small BLDC motor, a low-backlash planetary gearbox, and a high-resolution encoder.
1. The BLDC motor provides high dynamic response.
2. Our precision planetary gearboxes (backlash controllable to a few arc-minutes) offer high torsional stiffness and torque output, ensuring precise, jitter-free pointing of gimbals and control surfaces.
3. For some high-holding-torque applications (like camera gimbals), our hybrid stepper motors (especially 0.9° high-res) with quiet drivers are also a viable, cost-effective choice. - High-Reliability Drive Solution:
Failure is not an option in aerospace. Our BLDC drivers (ESCs) use high-reliability components, advanced FOC algorithms, and multiple protections (thermal, current, stall). For mission-critical tasks, we can also provide redundant designs (e.g., dual-winding motors, dual-channel drivers).
Engineering & Customization Capabilities:
This is our core competency. We offer full-process customization for aerospace clients: including exotic materials (titanium shafts, high-temp magnets); hollow-shaft structures (for cables or optical paths); special bearings and lubrication for extreme temperatures and vacuum; and integration of absolute encoders or electromagnetic brakes.
Typical Application Equipment Examples
- UAV Rotor Propulsion:
A multi-rotor UAV’s attitude is entirely dependent on the dynamic speed control of its BLDC motors. Our high-power BLDC motors feature extremely low inertia and high speeds (up to tens of thousands of RPM), enabling instant response to flight control commands for high-maneuverability flight and stable hovering. - Gimbal Systems:
Gimbals for mapping or surveillance must keep the camera image absolutely stable despite severe aircraft vibration. Our small BLDC motors (or stepper motors) paired with low-backlash planetary gearboxes provide the high-bandwidth, high-precision position servo control needed to actively isolate vibration and ensure clear imagery. - Servo Actuators:
Fixed-wing control surfaces, landing gear retraction, or satellite solar panel deployment all require high-reliability, high-force actuators. Our BLDC motor + high-torque planetary gearbox integrated modules are compact, powerful, and specifically designed for high-vibration, wide-temperature environments, ensuring reliable execution at critical moments.
Summary
AKT meets the extreme challenges of the aerospace industry with precision engineering and stringent quality standards. We understand the unique nature of this field and are committed to co-developing with clients from the initial design phase. We offer full-process customization, supporting mission performance with reliable BLDC motor, precision planetary transmission, and driver technology.