Structural connection:Integrated structure connection ensures the overall safety of the fan
1. Blade and petiole connection: The petioles are made of 6061T6 aviation-grade alloy, processed by CNC presion coated wtih polyurethane rubber after CNC precision processed (PU hais high resilience, shock absorption, abrasion resistance, oil resistance, tear resistance, chemical corrosion resistance and radiation resistance), which match the buffer cavity of blade perfectly. It can release the blade stress & airflow vibration efficiently when fan runs, and eliminate resonance, and this helps to reduce the motor load and prolong the motor life.
2. Petiole and hub connection: The petiole and the wheel/motor are integrated through the interlocking of the stepped concave-convex section, and the overall structure will withstaand the centrifugal force when the fan runs, while all fasteners are not stressed.
3. Motor and flange connection: Anti-falling safety ring: 5 petioles are integrated with the uppercover of the motor to achieve the whole structures will bear the stress. Anti-falling plate: The "concave" section of the flange and the"convex" section of the anti-falling ring are connected under the gravity to ensure thereliable connection between the motor flange and the motor.