Richmat Official Website - Provider of Smart Linear Drive and Electronic Control System Solutions

System configuration

● Miniature linear actuator

Key features and benefits

Millisecond-level response ensures zero delay during takeoff

UAV launch windows are often extremely brief, requiring the release mechanism to complete the unlocking process as quickly as possible after receiving the takeoff command. Our miniature linear actuators offer extremely high response speed—the time from receiving the control signal to the actuator completing its retraction is minimal, ensuring the UAV is successfully released within the optimal launch window so that no takeoff opportunity is missed.

Precise operation, zero errors in locking and release

Ejection mechanisms impose extremely stringent requirements on the precision of actuator movement—when the actuator extends into the locking mechanism, it must ensure a secure connection between the UAV and the launch platform; when retracting, it must guarantee complete release of the locking mechanism. Our linear actuators provide precise stroke control and extremely high repeatability, ensuring every extension and retraction is executed with pinpoint accuracy, fundamentally eliminating lockups or accidental ejection caused by incomplete movements.

Ultra-compact design, engineered for tight spaces

The internal space of the release mechanism is extremely limited, requiring the integration of multiple components—including the actuator motor, locking mechanism, feedback module, and receiver module—within a confined cavity. Our miniature linear actuators are known for their ultra-compact design, featuring a short installation length and ample thrust. They fit perfectly into the cavity of the release mechanism itself, reliably performing locking and release operations without encroaching on the layout of other core components.

High vibration resistance, effortlessly handling in-vehicle launch environments

Large UAVs are subjected to continuous vibration and shock during vehicle transport and launch preparation. Our linear actuators feature a high-strength transmission structure and a robust housing design, providing excellent vibration resistance. They maintain structural integrity and operational reliability even under severe transport vibrations and launch impacts, effectively preventing unintended release or jamming caused by vibration.

Long service life and maintenance-free operation, reducing total cost of ownership

UAV emergency release devices are often deployed in vehicle- or ship-based environments, where on-site maintenance conditions are limited. Our linear actuators feature a maintenance-free design, eliminating the risk of oil leaks associated with hydraulic systems and the issue of aging tubing in pneumatic systems. Validated through tens of thousands of endurance tests, they ensure stable operation throughout the device's entire lifecycle, minimizing maintenance requirements.

Built-in Hall sensors enable precise customer control

Our actuators feature built-in Hall sensors that provide real-time feedback on stroke position and operational status via pulse signals. This allows the customer's control system to precisely monitor whether the locking mechanism is engaged or disengaged in real time. The Hall sensor signals are output directly to the customer's controller, enabling the customer to independently program control logic and motion sequences. This ensures seamless adaptation to the diverse requirements of different drone models and launch methods, while enabling closed-loop control and self-diagnostic status checks.

High protection rating, confidently withstands harsh outdoor environments

UAV emergency release devices are often deployed in outdoor environments—from deserts to coastal airports, and from high-altitude regions to hot and humid areas. Our miniature actuators feature a high protection rating, providing full resistance against the corrosive effects of harsh natural conditions such as wind, sand, rain, snow, and salt fog. Utilizing corrosion-resistant materials and surface treatment processes, they operate stably across a wide temperature range from -30°C to +65°C.

Richmat's engineers provide end-to-end technical support—from needs assessment and solution design to product delivery—ensuring that our reliable miniature linear drive systems safeguard every takeoff and every moment in flight.

Related Products

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A72

Other Applications

UAV docking stations

UAV docking stations (also known as drone nests or drone hangars) are the core ground infrastructure in fully autonomous UAV operation systems. They are widely used in scenarios such as public safety, power line inspections, oil and gas pipeline inspections, smart agriculture, emergency mapping, and environmental protection. Serving as the "home" for UAVs, UAV docking stations handle functions such as storage, charging, data transmission, and mission scheduling. During UAV deployment and recovery, the automated opening and closing of the UAV docking station's top cover (hatch) is a critical step in ensuring safe launch and return.

Our miniature electric linear actuators are precision drive components specifically designed for the opening and closing systems of UAV docking station top covers. Compact and space-efficient, these actuators fit seamlessly into the limited internal space of the station, driving the hatch's opening and closing with precise, smooth, and reliable linear motion. As critical motion execution components, our actuators are delivered as individual parts and integrated into the customer's own control system, allowing the customer to independently control the actuator's stroke and motion sequence, thereby seamlessly integrating into the station's fully automated operational logic.

Firefighting UAV water buckets

Firefighting UAV water buckets (also known as fire bags or fire buckets) are one of the fastest-growing innovative applications in emergency management in recent years. They are widely used in firefighting and rescue operations involving high-rise building fires, forest fires, and hazardous chemical accidents. By suspending a water bucket, firefighting UAVs precisely deliver water or fire suppressants from the air to the core area of the fire, effectively addressing the blind spots of traditional firefighting methods in high-rise buildings and complex terrain.

In our product applications, the miniature electric linear actuator serves as the core actuator for controlling the opening and closing of the water bucket's bottom. The actuator receives commands from the customer's flight control system or a standalone controller to precisely control the opening and closing of the bucket's bottom—the bottom remains closed during water filling to maintain a seal, and opens upon reaching the fire scene to release water or fire suppressant. The actuator is small, compact, and lightweight, enabling reliable operation within the UAV's limited payload capacity. Its precise control over the opening and closing of the bucket bottom ensures the optimal timing and volume of water for every fire suppression deployment.

UAV charging & battery swapping systems

UAV charging and battery swapping systems are critical infrastructure within fully autonomous UAV operation systems. They are widely used in scenarios such as UAV docking stations, UAV nests, and inspection base stations. UAV flight endurance has long been the core bottleneck limiting operational radius and duration; however, the advent of automated charging and battery swapping systems has enabled UAVs to achieve a continuous operation mode where "landing means battery swap, and battery swap means takeoff."

In our product applications, miniature linear actuators primarily perform two core tasks: first, ejecting and inserting batteries—the actuator ejects a fully charged battery from a battery slot while simultaneously pushing a depleted battery into the opposite slot for charging; second, automatically opening and closing the protective cover of the charging and battery swapping unit—the actuator drives the opening and closing of the protective cover to ensure that the charging port remains sealed and protected when not in use. The actuator is small, compact, and precise, enabling it to reliably perform every battery transfer and cover opening and closing operation during the unattended automatic battery swap process.