RAYI

RAYI, whose full name is Jiyuan Rayi Innovation Science Technology, makes carbon fiber propellers for industrial drones in Jiyuan, Henan Province, China.

The company sells under the global brand Speed Nova. It builds standard and custom propellers for multicopters, VTOL aircraft, fixed-wing drones and heavy-lift drone platforms. Its range has more than 90 propeller models. Examples include fixed and folding propellers for multicopters, and propellers for VTOL aircraft with gasoline engines or electric motors. Sizes run from about 30 inches to over 70 inches in diameter.

The propellers use an optimized carbon fiber layup. The company says this gives lower weight, better efficiency, and more endurance and payload. The blades have a stiff carbon fiber structure and resist wear, corrosion and fatigue.

Production follows five steps: material preparation, precision layup, molding, finishing and inspection. Each propeller then goes through dimensional inspection, dynamic balancing, thrust testing and fatigue testing. The company holds more than 21 patent certificates and has a team of more than 100 people.

For custom work, RAYI asks customers for flight, aircraft, motor and operating data. It uses this to set blade shape, diameter, pitch, airfoil, material and balance. It also stresses the need for a clear mission profile when a propeller is designed.

Speed Nova also supplies other drone parts and complete solutions for manufacturers, integrators and distributors. These include batteries, speed controllers, motors and propulsion kits, plus flight controls, communication gear, payloads and drone platforms. The company exports to more than 60 countries and offers technical support.

Services

• Multicopter propellers
• VTOL propellers
• Fixed-wing propellers
• Custom propellers
• Batteries
• Speed controllers
• Motors
• Propulsion kits
• Flight controls
• Payloads