Brand Name:
Greef
Certification:
CE
Model Number:
GDG
Conventional generators typically utilize heavy iron cores. These cores are responsible for creating magnetic resistance, which can reduce the overall efficiency of the generator. Additionally, the iron cores contribute to core losses, further impacting performance.
In contrast, our innovative disc-type design takes a different approach by directing the magnetic flux along the axial direction. This unique configuration allows us to completely eliminate the need for an iron core, thereby minimizing magnetic resistance and core losses.
By removing the iron core, our design not only improves efficiency but also results in a lighter and more compact generator. This advancement represents a significant step forward in generator technology.
Our product incorporates the latest “Precise Coil” technology, which significantly reduces start torque to less than 0.3 N·m. This is achieved by eliminating hysteresis and gear notch effects, resulting in smoother and more efficient operation from startup.
Instead of traditional motors, we utilize a disc coreless motor design. This original structure leads to a considerable reduction in both size and weight, making the device more compact and easier to handle.
By employing specialized coreless motor technology, our system overcomes common limitations faced by lower speed wind energy applications. This allows for higher efficiency and better performance in various operating conditions.
The unique structural design provides a higher power-to-volume and power-to-weight ratio while extending the motor’s lifespan to be eight times longer than traditional motors. This ensures long-term, dependable operation.
Featuring a gearless, direct drive mechanism with low RPM operation, this generator minimizes mechanical complexity and enhances overall system efficiency.
Manufactured with premium-grade components, the generator is suited for demanding and extreme conditions, making it ideal for use in wind turbines and other challenging applications.
High efficiency coupled with low mechanical resistance reduces energy losses, maximizing power output and operational cost-effectiveness.
The aluminum alloy outer frame, combined with a specially designed internal structure, ensures excellent heat dissipation. Additionally, an optional fan cooling system can be integrated to further enhance thermal management.
We offer customization of voltage, speed, power, frequency, and other parameters to meet specific project requirements, providing flexibility and adaptability.
The motor features H-class insulation and utilizes vacuum pressure impregnation to enhance insulation reliability and overall performance.![]()
| Product Name | Axial Flux Coreless Generator |
| Type | Permanent Magnet Generator |
| Generator Material | Aluminum Alloy |
| Material | Aluminum Alloy |
| Blade Material | Aluminium Alloy |
| Voltage Range | 12-450V Customized |
| Core Structure | Coreless |
| Cooling Method | Air Cooling |
| Rated Power | 50W-100kW |
| Efficiency | Up To 92% |
| Features | Low start torque, small air gap, high efficiency |
Vertical-axis wind turbines (VAWTs) are a type of wind energy device characterized by their vertical rotor shafts. Unlike the traditional horizontal-axis turbines, VAWTs have blades that rotate around a vertical axis, allowing them to capture wind from any direction without needing to adjust their position. This design makes them particularly suitable for urban or complex terrain environments where wind direction can be variable.
Additionally, vertical-axis turbines tend to have a lower profile and can be easier to maintain due to ground-level components. They are often used in small to medium applications where space constraints or aesthetic considerations are important. Advances in materials and engineering continue to improve their efficiency and viability as a renewable energy solution.
Small-scale hydropower refers to the generation of electrical power through water flow in small rivers, streams, or man-made channels. These systems typically produce less than 10 megawatts of electricity and are designed to serve local communities or remote areas. Due to their size, they have minimal environmental impact compared to large hydropower dams.
Such hydropower installations can be cost-effective and reliable sources of clean energy, harnessing the natural flow of water to generate power without greenhouse gas emissions. They are often used in conjunction with other renewable systems to form hybrid energy solutions, enhancing energy security and sustainability at the local level.
Greef offers customized Coreless Permanent Magnet Generators under the model number GDG, proudly made in Qingdao. Our generators are certified with CE, ensuring high quality and reliability. Each unit features a coreless design with a small air gap and multi-poles, enhancing performance and efficiency up to 92%.
The inner-rotor generator structure utilizes premium aluminum alloy material for both the generator and its core components, providing excellent durability and lightweight properties. Cooling is efficiently managed through an air cooling method, maintaining optimal operating temperatures.
We accommodate orders starting from a minimum quantity of 1 set, with prices negotiable to meet your specific project requirements. Packaging is done carefully using foam and plywooden cases to ensure safe delivery. Delivery time is approximately 25 working days.
Payment terms include T/T, Western Union, MoneyGram, and L/C for your convenience. With a strong supply ability, Greef is committed to providing high-performance coreless permanent magnet generators tailored to your needs.
Product Packaging:
The Coreless Permanent Magnet Generator is carefully packaged to ensure safe delivery and maintain product integrity. Each unit is enclosed in anti-static foam padding and wrapped with protective bubble wrap to prevent any damage during transit. The generator is then placed in a sturdy, custom-fitted cardboard box with clear labeling indicating handling instructions such as "Fragile" and "This Side Up". Multiple layers of packaging materials are used to provide shock absorption and moisture resistance. For bulk orders, the individual boxes are securely packed into larger cartons, which are reinforced with strapping and corner protectors.
Shipping:
We offer reliable and timely shipping services worldwide. The Coreless Permanent Magnet Generator is shipped via trusted carriers with tracking options available for all shipments. Depending on the destination, customers can choose from standard, expedited, or express shipping methods. All shipments include insurance coverage to safeguard against loss or damage. Prior to dispatch, each product is thoroughly inspected and tested to ensure it meets quality standards. Shipping documentation, including the invoice, packing list, and any necessary customs paperwork, is included with the shipment to facilitate a smooth delivery process.
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