20 Years Life Time Axial Flux Coreless Generator Coreless Permanent Magnet Generator Low Maintenance Due To No Iron Core Losses Source Of Clean Energy

Product Description:

The GDG series disc-type permanent magnet generator by GREEF NEW ENERGY is distinguished by its iron-core-free design. In this generator, the spindle and rotor are constructed in a stacked disc shape, with the stator fixed centrally. The rotor rotates on both sides of the stator. Notably, the spindle contains only windings and does not include an iron core.

Both the stator and rotor feature a flat disc structure utilizing axial air gap magnetic flux. They are arranged alternately along the axial direction. This configuration, characterized by a short axial length and a large diameter, facilitates the creation of a multi-pole structure. Consequently, the generator achieves a high power-to-weight ratio and operates at low speeds.

Additional advantages of this disc generator include a low starting wind speed, compact size, reduced energy consumption, lightweight, and a highly efficient design. These qualities make it especially suitable for direct-drive vertical axis wind turbines, as the rotor mounted on such turbines presents minimal resistance to the wind.

The GDG series is available in two configurations: outer rotor and inner rotor types. In the outer rotor design, the shaft does not rotate the casing, and cables are routed through the middle of the shaft. Conversely, in the inner rotor design, the casing remains stationary while the shaft rotates, with cables exiting from outside the casing.

Features:

The technology eliminates hysteresis and gear notches effects, resulting in an extremely low starting torque of less than 0.1 N·m. This feature ensures smooth and efficient operation from the moment the device begins to move.

By removing the core, mechanical resistance and energy losses are significantly reduced. This innovation greatly enhances the overall efficiency of the system.

Utilizing our “Precise Coil” technology, combined with rare earth permanent magnets, multi-pole configuration, and a small air gap, the design achieves high power density and delivers substantial output power.

Featuring a gearless direct drive and brushless construction, the system requires minimal maintenance. This design improves durability while reducing operational complexity.

The special structural design allows for a greater power-to-volume and power-to-weight ratio, resulting in exceptional reliability. Additionally, its lifespan is approximately eight times longer than that of traditional generators.

This technology enhances the utilization of wind turbines, particularly in environments with low wind speeds, ensuring more consistent energy generation.

The aluminum alloy outer frame coupled with a specialized internal structure provides outstanding heat dissipation, maintaining optimal operating temperatures and enhancing system longevity.

Technical Parameters:

Applications:

Customization:

Greef offers customized Axial Flux Coreless Generators under the model number GDG, manufactured in Qingdao with CE certification. Our coreless permanent magnet generators are designed with a rare earth permanent magnet rotor and feature an inner-rotor generator structure that ensures higher reliability and superior performance.

With a power output range from 100W to 100kW and an exceptionally low start torque of less than 0.03N/M, these generators are ideal for applications requiring efficiency and precision. The small air gap design contributes to improved magnetic flux and overall generator efficiency.

Our products come with insulating resistance of at least 100MΩ (measured at 501V DC), ensuring safety and durability. We package each unit securely using foam and plywooden cases to guarantee safe delivery.

The minimum order quantity is 1 set, with pricing negotiable to meet your specific requirements. Delivery time is typically 25 working days, and we accept payment via T/T, Western Union, MoneyGram, and L/C, providing flexible payment terms.

Greef's supply ability ensures consistent availability of these coreless permanent magnet generators, tailored to your needs for enhanced performance and higher reliability.

Packing and Shipping:

Product Packaging and Shipping

The Coreless Permanent Magnet Generator is carefully packaged to ensure maximum protection during transit. Each unit is securely placed in a custom-fitted foam insert within a sturdy, double-walled cardboard box to prevent any damage from shocks or vibrations.

For added safety, the packaging includes anti-static materials to protect the electronic components from electrostatic discharge. All accessories and documentation are neatly organized and included inside the package.

Shipping options include standard ground, expedited, and international freight, depending on the destination and customer requirements. Each shipment is tracked and insured to guarantee safe and timely delivery.

Before dispatch, all products undergo a thorough quality inspection and functional test to ensure they meet our high standards. Customers will receive a tracking number and estimated delivery date once the order has been shipped.

We recommend handling the package with care and inspecting the contents upon arrival. In case of any damage or discrepancies, please contact our customer service immediately for assistance.