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Home > Products > Coreless Permanent Magnet Generator >
Small Air Gap Inner Rotor 3 Phase Type For Industrial Production

Small Air Gap Inner Rotor 3 Phase Type For Industrial Production

3 Phase Type Inner Rotor

Small Air Gap Inner Rotor

Industrial Production Inner Rotor

Place of Origin:

Qingdao

Brand Name:

Greef

Certification:

CE

Model Number:

GDG

Contact Us
Request A Quote
Product Details
Phase Type:
3
Portection Grade:
IP 54
Poles:
16-20
Generator Type:
3 Phase AC Permanent Magnet
Power:
0.1kw-20kw
Generator Material:
Aluminum Alloy
Speed:
100-500RPM
Start Torque:
<1 N/M
Highlight:

3 Phase Type Inner Rotor

,

Small Air Gap Inner Rotor

,

Industrial Production Inner Rotor

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:

Definition of Axial Flux Ironless Core Generator

An axial flux ironless core generator is a type of generator that utilizes an axial flux design and an ironless core structure to generate electricity. It is able to generate electricity using axial magnetic flux without incurring iron core losses and hysteresis losses that are commonly experienced in conventional generators.

Structure

The structure of an axial flux ironless core generator usually comprises permanent magnets, coils and casing. The permanent magnets form the magnetic field, while the coils are responsible for capturing the energy in the magnetic field and converting it into electrical energy. The casing serves to protect the internal structure of the generator and provide it with rigid support.

Principle of Operation

The principle of operation of axial flux ironless core generators is based on the principle of electromagnetic induction. When a permanent magnet generates a magnetic field that moves relative to a conductor in a coil, it produces an induced electromotive force (EMF) in the conductor. This EMF can be further transformed into electrical energy, which can then be used to power external devices.

 

Applications:

Wind Power Generation

Axial flux coreless generators have shown great potential in the field of wind power generation. Megawatt-class wind turbines can benefit significantly from these generators, as they can significantly increase output density and, therefore, increase the efficiency of wind power generation. The elimination of an iron core reduces iron losses and hysteresis losses, making the generators more efficient.

Renewable Energy

Axial flux coreless generators are also widely used in renewable energy applications such as solar and wind power generation systems. Their capability to convert energy efficiently and operate reliably makes them a perfect fit for renewable energy generation systems.

Other Industrial Applications

Axial flux coreless generators can be used in various other industrial applications that require efficient, lightweight, and reliable power supply. For instance, these generators can be used as a backup or auxiliary power source to provide stable power support to industrial equipment.

Customized Applications

With the flexible structure of axial flux ironless core generators, customers can customize these generators based on their specific needs. For example, parameters such as generator power, speed, and output voltage can be adjusted to meet the demands of various application scenarios.

Technical Data

 

Model GDG
Rated Power 0.05KW-10KW
Option Rated Voltage 24V-440Vac
Efficiency >85%
Wending Method Y
Insulating Resistance 100Mohm Min(500V DC)
Phase Type 3 Phase
Structure Outer rotor
Stator Coreless wire coil
Rotor Rare Earth Permanent Magnet
Generator shell material Aluminum alloy
Shaft material Carbon steel
Bearing NSK Deep groove ball bearing
 



They are always being used in vertical axis wind turbine, and other generator system which requests very low start torque and low RPM.
Small Air Gap Inner Rotor 3 Phase Type For Industrial Production 0
Small Air Gap Inner Rotor 3 Phase Type For Industrial Production 1



 

 


 

Drawing Sample


Small Air Gap Inner Rotor 3 Phase Type For Industrial Production 2
Small Air Gap Inner Rotor 3 Phase Type For Industrial Production 3

 
Magnetic Generator Packaging & Shipping

1. The magnetic generator use inner foam protection outer Plywooden case .Generator shaft use pipe protection.

2.Pakage size and weight please refer to our sales.

3.Shipping by sea with FCL LCL or by air .

If you have any request in package and shipping please tell our sales we will do according to your request.

Small Air Gap Inner Rotor 3 Phase Type For Industrial Production 4

 

 

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.
E
E*c
France Jul 17.2025
Since installing this variable-pitch wind turbine, the battery hasn’t run low again. Before, I used to worry whenever we had consecutive overcast days and light winds in the winter, but now it can even charge the battery in low winds. Best of all, it doesn’t suddenly start screeching during gusts, so it doesn’t disturb my family’s sleep. The installer also mentioned that variable-pitch turbines are easier to calibrate than fixed-pitch ones. I give it five stars!

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