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Home > Products > Coreless Permanent Magnet Generator >
Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw

Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw

Permanent Magnet Alternator 2kw

Low Start Torque PM Alternator

Coreless Permanent Magnet Generator 5kw

Place of Origin:

QINGDAO

Brand Name:

GREEF

Certification:

CE

Model Number:

GDG

Contact Us
Request A Quote
Product Details
Blade Material:
Aluminium Alloy
Rated Power:
300w-30kw
Frequency:
50HZ,50hz/60hz
Rated Rotor Speed:
20-900RPM
Application:
Wind Hybrid System,on-grid/off-grid
Rated Voltage:
Customized
Generator Type:
3 Phase AC Permanent-magnet,Permanent Magnent Generator
Type:
Wind Power Generator
Highlight:

Permanent Magnet Alternator 2kw

,

Low Start Torque PM Alternator

,

Coreless Permanent Magnet Generator 5kw

Payment & Shipping Terms
Minimum Order Quantity
1
Price
$299-12999
Packaging Details
Inner Foam + Plywooden case
Delivery Time
25DAY
Payment Terms
L/C, D/A, D/P, Western Union, MoneyGram
Supply Ability
$299-12999c
Product Description

Low Noise Coreless Permanent Magnet Start Torque Alternator For Sale

Coreless Permanent Magnetic Generator
Magnetic Generator Product Description

 

GreeF company supply modified kinds of Coreless Disk Permanent Magnet Generator. The main models are as follow:

  • GDG-0.2KW 200RPM
  • GDG-0.5KW 200RPM
  • GDG-1KW 150RPM
  • GDG-1KW 180RPM
  • GDG-2KW 120RPM
  • GDG-2KW 180RPM
  • GDG-3KW 100RPM
  • GDG-3KW 180RPM
  • GDG-5KW 100RPM
  • GDG-5KW 150RPM
  • GDG-10KW 100RPM
  • GDG-10KW 150RPM
The magnetic generators are always being used in vertical axis wind turbine generator, diesel gasoline generator ,hydroelectric generator(water-power generator) and other generator system which requests very low start torque and low RPM.

 

 

Magnetic Generator Overview

 

The coreless disk permanent magenetic generator is made of high-stability Nd-Fe-B materials.

 

The specific outer rotor magnetic circuit is designed in a special way. The magnetic generator

 

has following features:

 

Low starting torque, Low start wind speed, Low weight,small size ,High generating efficiency

 

 

Magnetic Generator Features

 

  • Torque Patent Technology: use newest “Precise Coil” technology. No hysteresis and gear notches effect make the start torque very low <1N.M
  • Original Structure: use disc coreless motor to take place traditional motor makes it less volume and weight.
  • Higher Utilization: use special coreless motor technology to eliminate the use bottlenecks of lower speed wind energy.
  • Higher Reliability: special structure make it bigger ratio of power to volume, power to weight and have long life of 8 times longer than traditional motor.
  • Gearless, direct drive, low RPM generator.
  • High standard, quality components for use in harsh and extreme environments for wind turbines
  • High efficiency and Low mechanical resistance energy loss.
  • Excellent heat dissipation due to the Aluminum alloy outer frame and special internal structure.

 

Magnetic Generator Technical Data

 

Model GDG-0.5KW-200 GDG-1KW-180 GDG-1KW-200 GDG-2KW-120 GDG-2KW-180
Rated Power 0.5KW 1KW 1KW 2KW 2KW
Rated Rotate Speed 200 RPM 180RPM 200RPM 120RPM 180RPM
Rated Voltage 56Vac 56Vac 56Vac 115Vac 115Vac
Rated Current 9A 12A 17.9A 10A 17.4A
Efficiency >85%
Wending Method Y
Insulating Resistance 100Mohm Min(500V DC)
Leakage Level <5 ma
Start Torque <0.1N/M <0.3 N/M <0.3 N/M <0.5 N/M <0.3 N/M
Phase Type 3 Phase
Structure Out rotor
Stator Coreless wire coil
Rotor Rare Earth Permanent Magnet
Generator Shell Diameter 320 380 380 550 450
Generator Shell Length 232 241 241 330 258
Weight 20 32 32 75 51
Shaft drameter 45 50 50 78 59
Generator shell material Aluminum alloy
Shaft material Carbon steel
Bearing Deep groove ball bearing

 

 

 

Model GDG-3KW-100 GDG-3KW-180 GDG-5KW-100 GDG-5KW-150 GDG-10KW-100
Rated Power 3KW 3KW 5KW 6KW 10KW
Rated Rotate Speed 100RPM 180RPM 100RPM 150RPM 100RPM
Rated Voltage 380VAC 380VAC 380VAC 380VAC 400VAC
Rated Current 4.6A 4.7A 7.6A 15.2A 14.5A
Efficiency >85% >85% >88% >88% >88%
Wending Method Y Y Y Y Y
Insulating Resistance 100Mohm Min(500V DC) 100Mohm Min(500V DC) 100Mohm Min(500V DC) 100Mohm Min(500V DC) 100Mohm Min(501V DC)
Leakage Level <5 ma <5 ma <5 ma <5 ma <5 ma
Start Torque <1 N/M <0.5 N/M <0.5 N/M <1 N/M <1N/M
Phase Type 3 Phase 3 Phase 3 Phase 3 Phase 3 Phase
Structure Out rotor Out rotor Out rotor Out rotor Out rotor
Stator Coreless wire coil Coreless wire coil Coreless wire coil Coreless wire coil Coreless wire coil
Rotor Rare Earth Permanent Magnet Rare Earth Permanent Magnet Rare Earth Permanent Magnet Rare Earth Permanent Magnet Rare Earth Permanent Magnet
Generator Shell Diameter 620 550 700 620 770
Generator Shell Length 410 330 400 410 590
Weight 110 65 125 110 245
Shaft drameter 80 78 98 80 85
Generator shell material Aluminum alloy Aluminum alloy Aluminum alloy Aluminum alloy Aluminum alloy
Shaft material Carbon steel Carbon steel Carbon steel Carbon steel Carbon steel
Bearing Deep groove ball bearing Deep groove ball bearing Deep groove ball bearing Deep groove ball bearing Deep groove ball bearing

 

 

Currently we offer wide range:

 

------ 300W-100kw FRP wind turbine blades

------ Horizontal Axis Wind Turbine generator (HAWT)

------ Vertical Axis Wind Turbine generator (VAWT)

------ Solar and wind hybrid system

------ Solar panel

------ Permanent Magnent Generator

------ Controllers, invertor, battery and relation products

 

 

 

This is Victor, if you want to get the best price and more information, also can contact us directly:

Email:info@ greefenergy.com Mobile:+86-15264246886

Skype:greefenergy_c Wechat:haorenchensheng

 

Magnetic Generator Drawing Sample

 


Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw 0

Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw 1

Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw 2

 

 

Magnetic Generator Pictures

Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw 3

Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw 4

 
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.

Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw 5

 

 

 
Our Services

OEM service

 

Our magnetic generator is free 3 years warranty, All lifelong technical support and part cost supply.

 

(1) The warranty period is start from the date of shipment which show on the bill of loading or air waybill.
(2) Free maintenance services during the warranty period the cost involved be borne by the company, do not charge a fee to customers, free warranty if any damage outside the warranty period, the company will charge a fee for labor costs and materials.
(3) the warranty period, company's quality problems caused by the maintenance of the freight borne by the company, if not under warranty or man-made damage, the freight charges by the customer.

 

 

Company Information

 

Low Noise Coreless Low Start Torque Permanent Magnet Alternator 2kw 3kw 5kw 6

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*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!
J
J*n
Norway Apr 8.2024
I run a small dairy farm in northern Norway, far from the power grid. A few years ago, I installed solar panels and a Deye inverter, but the solar system basically stops working in winter, and the diesel generator was costing me a fortune. This year, I added this variable-pitch wind turbine and connected it to the Deye inverter for a hybrid solar-wind system, and we haven’t had a single power outage all winter. This wind turbine starts up at low wind speeds of just 2–3 on the Beaufort scale. During blizzards, the blades automatically pitch down to slow the turbine, preventing runaway speeds, and it’s much quieter than my neighbor’s fixed-pitch model. The Deye inverter’s switching logic is smart—it prioritizes solar power when available, and automatically switches to the wind turbine when solar output drops. It’s all clearly visible on the app. Now, the diesel generator is practically idle. Wind and solar backing each other up—that’s true off-grid freedom.

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