Full Model Coverage · New Design · Optimized Aerodynamics
The VORTEX Series features a complete range of fixed-wing electric propellers with a refreshed exterior and upgraded airfoil geometry. Made from imported high-strength nylon and precisely dynamically balanced, each propeller delivers efficient thrust, smooth operation, and reliable flight performance.
Certified Patented Structure
Proprietary design approved by the National Intellectual Property Administration.
Textured Leading Edge
Enhances high-RPM efficiency and reduces airflow separation.
Anti-Slip Hub Surface
Improves mounting stability and minimizes loosening during operation.
CFD-Based Aerodynamic Simulation
Optimized for electric propulsion to improve thrust output and efficiency.
Ultra-Thin Prop Tips
Lower noise, reduced vortices, and improved energy efficiency.
Streamlined Blade Profile
Smooth airflow, reduced drag, and stable performance.
Each propeller is factory-tested with strict dynamic balance control, ensuring consistent quality and dependable performance in every flight.
Excellent toughness and flexural strength, combined with precision molding, provide durability and confidence across demanding flight conditions.
Select propeller sizes according to manufacturer recommendations.
Check balance and ensure secure installation before use.
Operate only in safe areas and avoid contact with rotating propellers.
Never use damaged propellers.
Users assume all risks caused by improper operation; Gemfan is not responsible for misuse-related damage or injury.
Our prices do not include import tax, such as no customs clearance ability of individuals or companies, please be careful to buy, if unable to clear customs, resulting in customs destruction, our company will not refund
Our satisfaction guarantee is active for 30 days after delivery. We don't support returns and refunds if over 30 days after the delivery.
For returns, please email shopify@mad-motor.com with the subject 'Returns' and include your order number, name and the reason for the return.
Seller will provide the customer with instructions where to send returned goods. Customers are strongly recommended to get proof of postage when returning goods to avoid "lost packages" situations.
Please note that customers are responsible for shipping costs of returned items.
When the returned item is received by seller and after inspecting, customer will receive a return confirmation email, which notifying about the status of the refund. If the refund is approved, the payment will be refunded to the customer's account via credit card or original methods shortly thereafter.
Custom orders are not eligible for returns or refunds.
We accept cancellations only within 48 hours after the order has been placed.
(2)PRODUCING:
Due to the handmade process, all orders are processed and complete within 10 working days. Once complete of the production, goods will be shipped within 3 working days. Average shipping times range between 5-10 working days, which depend on your specific location.
When will I get my order?
We will ship the goods via DHL and offer you the tracking number after shipment.
After the production and packaging of the order are completed, we will ship according to the address you provided. We shall commit about delivery time to you as table below region：
|
Region |
Commitment processing time |
Commitment delivery time |
Commitment timeframe |
|---|---|---|---|
|
North America region (excluded Mexico) |
3-5 days |
7-15days |
10-20 days |
|
Europe & UK |
3-5 days |
10-20 days |
13-25 days |
|
Australia, New Zealand, Chile and other regions |
3-5 days |
10-20 days |
13-25 days |
Special Notes:
Delivery may be delayed due to holidays, material shortages, or force majeure events. We will notify you if such cases occur.
If you have any questions or comments, please do not hesitate to contact us through:
Email: shopify@mad-motor.com
