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Home > Products > Permanent Magnet Generator >
AC Current Type Permanent Magnet Generator with Rated Voltage 12-1140V and Robust Steel Shaft Material

AC Current Type Permanent Magnet Generator with Rated Voltage 12-1140V and Robust Steel Shaft Material

Rated Voltage 12-1140V Permanent Magnet Generator

AC Current Type PMG

Robust Steel Shaft Material Permanent Magnet Alternator

Brand Name:

Greef

Certification:

CE

Model Number:

GDF

Contact Us
Request A Quote
Product Details
Rated Voltag:
12-1140V
Bearing Brand:
SKF
Magnet Type:
NdFeB
Rated Power:
0.5-5000KW
Cooling Method:
Fan Cooling
Protection G:
IP54
Generator Type:
3phase AC Synchronous Generator
Generatror Shell Material:
Cast Iron
Highlight:

Rated Voltage 12-1140V Permanent Magnet Generator

,

AC Current Type PMG

,

Robust Steel Shaft Material Permanent Magnet Alternator

Payment & Shipping Terms
Minimum Order Quantity
1 Set
Price
Negotiable
Packaging Details
Foam+plywooden Case
Delivery Time
25 Working Days
Payment Terms
T/T
Product Description
AC Current Type Permanent Magnet Generator with Rated Power 0.5-5000KW and Robust Steel Shaft Material
AC Current Type Permanent Magnet Generator with Rated Voltage 12-1140V and Robust Steel Shaft Material 0
Permanent Magnet Generator (PMG): A Leap in Power Generation Efficiency
A Permanent Magnet Generator (PMG) is an advanced type of electric generator that utilizes high-strength permanent magnets on its rotor to create a powerful magnetic field, instead of relying on traditional electrically-excited windings.
This innovative design eliminates the need for slip rings and brushes, leading to significant advantages:
  • Higher Efficiency: Reduces energy losses, resulting in superior efficiency, especially under partial loads.
  • Exceptional Reliability: Brushless structure ensures minimal maintenance and a longer operational lifespan.
  • Compact & Lightweight: Offers a higher power density, making it ideal for space-constrained applications.
  • Excellent Performance: Provides superior voltage regulation and faster response.
PMGs are the ideal power solution for wind turbines, marine applications, backup power systems, and any scenario demanding reliable and efficient energy conversion.
Applications
Permanent Magnet Generators (PMGs), noted for their high efficiency, reliability, and compact design, have emerged as the favored power solution in various contemporary industrial sectors. Major application areas encompass:
Wind Power Generation
The primary element in present-day direct-drive and semi-direct-drive wind turbines, offering exceptional efficiency, particularly in variable-speed operation.
New Energy Vehicles
Extensively utilized in electric and hybrid vehicles as the principal traction motor or auxiliary generator.
Marine and Offshore
Admirable for ship shaft generators and main/auxiliary power systems owing to their high reliability and low maintenance.
Backup Power Systems
Deployed in diesel and gas generator sets to furnish responsive, stable, and reliable emergency and standby power.
High-Speed Applications
Appropriate for high-speed drives like microturbines and flywheel energy storage systems.
Industrial & Military Equipment
Utilized in specialized and military power systems where high power density and utmost reliability are crucial.
Product Parameters
Parameter Value Unit
Rated power 0.5-5000 kW
Rated rotate speed 20-3000 rpm
Rated voltage 48-1140 Vac
Frequency 60/50 Hz
Number of Poles 24
Generator type 3phase AC Synchronous generator
Magnet type NdFeB
Winding Method Y
Magnet temperature level Max.120℃
Winding temperature level Max.180℃
Effienciency >95%
Insulate Grade H
Insulating resistance 100Mohm Min(500Vdc)
Classification of degrees IP54
Generatror shell material Cast Iron
Winding material 100% Copper
Shaft material Steel
Iron Core Cold rolled silicon steel sheet
Bearing brand SKF
Cooling Method Fan Cooling
Weight (N.W /G.W ) 132kg /152kg
Packing Size 870*470*570mm
Installation Horizontal
Rated Power Specifications
Rated Power Rated Speed Rated Voltage Frequency
0.5KW 20rpm~400rpm 12V~220Vac 10Hz~60Hz
1KW 20rpm~600rpm 12V~220Vac 10Hz~60Hz
2KW 20rpm~1000rpm 12V~400Vac 10Hz~60Hz
3KW 20rpm~1500rpm 48V~690Vac 10Hz~60Hz
5KW 20rpm~1500rpm 48V~690Vac 10Hz~60Hz
10KW 20rpm~1500rpm 120V~690Vac 10Hz~60Hz
15KW 20rpm~3000rpm 120V~690Vac 10Hz~60Hz
20KW 20rpm~3000rpm 120V~690Vac 10Hz~60Hz
25KW 20rpm~3000rpm 120V~1140Vac 10Hz~60Hz
30KW 20rpm~3000rpm 120V~1140Vac 10Hz~60Hz
50KW 20rpm~3000rpm 220V~1140Vac 10Hz~60Hz
80KW 20rpm~3000rpm 220V~1140Vac 10Hz~60Hz
100KW 20rpm~3000rpm 220V~1140Vac 10Hz~60Hz
150KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
200KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
250KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
300KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
500KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
700KW 20rpm~3000rpm 690V~1140Vac 10Hz~60Hz
800KW 20rpm~3000rpm 690V~1140Vac 10Hz~60Hz
1MW 200rpm~3000rpm 690V~1140Vac 10Hz~60Hz
2MW 200rpm~3000rpm 690V~1140Vac 10Hz~60Hz
3MW 200rpm~3000rpm 690V~1140Vac 10Hz~60Hz
20KW 20rpm~3000rpm 120V~690Vac 10Hz~60Hz
4MW 600rpm~3000rpm 690V~1140Vac 10Hz~60Hz
5MW 600rpm~3000rpm 690V~1140Vac 10Hz~60Hz
Customization
Product Customization Services for the Permanent Magnet Generator
Brand Name:
Greef
Model Number:
GDF
Place Of Origin:
China
Certification:
CE
Minimum Order Quantity:
1 Set
Price:
Negotiable
Packaging Details:
Foam+plywooden Case
Delivery Time:
25 Working Days
Payment Terms:
T/T
Current Type:
AC
Generator type:
3phase AC Synchronous Generator
Protection G:
IP54
Shaft material:
Steel
Rated Power:
0.5-5000KW
Keywords:
FREE ENERGY, three phase, magnetic power generator
Packing and Shipping
Our Permanent Magnet Generator product is carefully packaged to ensure safe delivery to our customers. Each generator is securely wrapped in protective materials to prevent any damages during transportation.
Shipping Information
We offer worldwide shipping for our Permanent Magnet Generator. Shipping costs may vary depending on the destination and shipping method chosen. Customers can track their orders and receive updates on the delivery status.
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.
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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