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Home > Products > Coreless Permanent Magnet Generator >
Aluminum alloy small air gap generator material rated power 50W 100kW ideal for industrial power generation applications

Aluminum alloy small air gap generator material rated power 50W 100kW ideal for industrial power generation applications

aluminum alloy coreless permanent magnet generator

50W industrial power generator

100kW air gap generator material

Brand Name:

Greef

Certification:

CE

Model Number:

GDG

Contact Us
Request A Quote
Product Details
Product Name:
Axial Flux Coreless Generator
Coolingmethod:
Air Cooling
Structure:
Inner/Outer Rotor
Corestructure:
Coreless
Type:
Permanent Magnet Generator
Generator Material:
Aluminum Alloy
Material:
Aluminum Alloy
Voltage Range:
12-450V Customized
Highlight:

aluminum alloy coreless permanent magnet generator

,

50W industrial power generator

,

100kW air gap generator material

Payment & Shipping Terms
Minimum Order Quantity
1Set
Price
Negotiable
Packaging Details
Foam+plywooden Case
Delivery Time
25 Working Days
Payment Terms
T/T,Western Union,MoneyGram,L/C
Supply Ability
Supply Ability
Product Description

Product Description:

Conventional generators depend on substantial iron cores, which introduce magnetic resistance and result in core energy losses. These iron components are typically heavy and limit the efficiency of the generator.

In contrast, our innovative disc-type design channels the magnetic flux along the axial direction, thereby removing the need for an iron core entirely. This approach effectively eliminates the issues related to magnetic resistance and core losses.

By adopting this iron-free configuration, our design enhances performance and reduces the weight of the generator, offering a more efficient and compact solution compared to traditional models.


Features:

Torque Patent Technology

Our product utilizes the latest "Precise Coil" technology, which effectively eliminates hysteresis and gear notch effects. This innovation results in an exceptionally low starting torque of less than 0.3N·M, ensuring efficient and smooth operation from the onset.

Original Structure Design

By replacing traditional motors with a disc coreless motor, the design significantly reduces both the volume and weight of the device. This advancement contributes to a more compact and lightweight solution without compromising performance.

Enhanced Utilization

The integration of specialized coreless motor technology overcomes common limitations associated with low-speed wind energy applications. This improvement leads to higher efficiency and better utilization of available wind resources.

Superior Reliability

Featuring a unique structural design, the motor achieves a superior power-to-volume and power-to-weight ratio. Additionally, it boasts a lifespan that is eight times longer than that of traditional motors, ensuring long-term dependable performance.

Gearless, Direct Drive Generator

This is a gearless, direct drive generator operating at low RPM, which contributes to reduced mechanical complexity and enhanced durability.

Robust Components for Extreme Environments

High-standard quality components are selected to withstand harsh and extreme environmental conditions, making this product ideal for use in wind turbine applications.

High Efficiency and Low Energy Loss

The design features high efficiency and minimized mechanical resistance, resulting in reduced energy loss during operation.

Excellent Heat Dissipation

The aluminium alloy outer frame, coupled with a specially designed internal structure, ensures excellent heat dissipation. Additionally, the system can be equipped with fan cooling for enhanced thermal management.

Customizable Specifications

Various parameters such as voltage, speed, power, and frequency can be customized to meet specific requirements, providing flexibility to suit different applications.

Advanced Insulation

The product features H class insulation and vacuum pressure impregnation technology, enhancing its durability and resistance to electrical stresses.


Technical Parameters:

Product Name Axial Flux Coreless Generator
Type Permanent Magnet Generator
Material Aluminum Alloy
Blade Material Aluminium Alloy
Core Structure Coreless
Rated Power 50W - 100kW
Voltage Range 12V - 450V Customized
Poles 16 - 48
Rated Rotor Speed 60rpm - 700rpm
Cooling Method Air Cooling
Features Low start torque, high efficiency, high power density

Applications:

Vertical-Axis Wind Turbines

Vertical-axis wind turbines (VAWTs) represent a distinct type of wind energy technology where the main rotor shaft is set vertically. Unlike the more common horizontal-axis wind turbines, VAWTs can capture wind from any direction without the need for reorientation. This characteristic makes them especially suitable for urban environments and locations with turbulent wind conditions. Additionally, their compact design often allows for easier installation in smaller spaces.

Small-Scale Hydropower

Small-scale hydropower refers to hydroelectric power installations that generate a relatively low amount of electricity, typically serving localized communities or individual facilities. These systems harness the kinetic energy of flowing water in rivers or streams without the large dams associated with conventional hydropower plants. The minimal environmental impact and ability to provide reliable, renewable energy make small-scale hydropower an attractive option for sustainable development in remote or rural areas.

Aluminum alloy small air gap generator material rated power 50W 100kW ideal for industrial power generation applications 0

Customization:

Greef offers customized services for our Coreless Permanent Magnet Generator, model GDG, designed and manufactured in Qingdao. This Permanent Magnet Generator features a small air gap and an inner/outer rotor structure that ensures higher reliability and high efficiency in various applications.

Constructed with high-quality aluminum alloy and utilizing an air cooling method, our generator maintains optimal performance even under demanding conditions. We provide CE-certified products with a rated rotor speed range of 60rpm to 700rpm, adaptable to your specific requirements.

Our customization services include flexible packaging options using foam and plywooden cases to ensure safe delivery. With a minimum order quantity of 1 set, competitive and negotiable pricing, and a supply ability that meets your demand, we guarantee timely delivery within 25 working days.

Payment terms are convenient and secure, accepting T/T, Western Union, MoneyGram, and L/C. Trust Greef to deliver a Coreless Permanent Magnet Generator that combines small air gap technology with superior reliability and efficiency tailored to your needs.

Aluminum alloy small air gap generator material rated power 50W 100kW ideal for industrial power generation applications 1
Aluminum alloy small air gap generator material rated power 50W 100kW ideal for industrial power generation applications 2

Packing and Shipping:

Our 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, corrugated cardboard box to prevent movement and absorb shocks. The packaging materials are designed to be environmentally friendly and recyclable.

For shipping, we use reliable carriers with tracking options to guarantee timely and safe delivery. The product is shipped with clear labeling, including handling instructions and product information, to ensure proper care throughout the shipping process. International shipping options are available, with all necessary documentation provided for smooth customs clearance.

Aluminum alloy small air gap generator material rated power 50W 100kW ideal for industrial power generation applications 3
Ratings& Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

B
B*v
Uzbekistan Apr 15.2026
This canal flows day and night – I never thought it could make money. After Greef installed the system, it runs by itself. Every day I check my phone to see how much electricity was generated and how much I earned. I'll recover my investment in less than a year, and after that it's pure profit.
B
B*n
Sweden Oct 17.2025
My farm is 30 kilometers from town, and connecting to the power grid would cost a fortune. Three years ago, I installed a solar panel system with a battery bank. It was sufficient during spring, summer, and fall, but in winter, we often had a week of consecutive overcast days—and the batteries would run out in just three days. Last year, I decided to add a variable-pitch wind turbine, connected it to the AC coupling port of the Deye inverter, and set up a hybrid solar-wind system. Throughout the entire winter, the battery level never dropped below 45%, and I never had to work in the dark again. The Deye app allows me to monitor both the solar and wind turbine data simultaneously, and the transition between them is so smooth it’s almost imperceptible. Relying solely on solar power during winter on a Nordic farm is a gamble. Only by combining a variable-pitch wind turbine with a Deye inverter—creating a wind-solar hybrid system—can you get through the winter with peace of mind.
L
L*s
Czech Republic May 4.2023
“I built a small pico hydro system on the creek behind my off-grid cabin. The water head is only 3 meters and flow rate around 0.2 m³/s – too low for most generators. This axial flux coreless unit starts generating usable power at just 150 RPM. No cogging, no iron loss, and it’s silent. I’m getting 300-400W continuously, 24/7. My old induction generator would barely light an LED at that speed. Absolutely perfect for low-head hydro.”

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