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Home > Products > Permanent Magnet Alternator >
Low Rpm Permanent Magnet Alternator / Permanent Magnet Synchronous Generator

Low Rpm Permanent Magnet Alternator / Permanent Magnet Synchronous Generator

low rpm generator alternator

low rpm ac alternator

Place of Origin:

CHINA

Brand Name:

GreeF

Certification:

CE

Model Number:

GDF

Contact Us
Request A Quote
Product Details
Rated Power:
0.5kW-5000kW
Rated Rotate Speed:
20rpm-3000rpm
Rated Voltage:
Customized
Magnet Type:
NdFeB
Generator Material:
Aluminium Body+Cooper Wire
Bearing:
SKF Bearing
Protection Grade:
IP54
Highlight:

low rpm generator alternator

,

low rpm ac alternator

Payment & Shipping Terms
Minimum Order Quantity
1 Set
Packaging Details
Foam + Plywooden Case
Delivery Time
20-25 working days
Payment Terms
T/T, Western Union, MoneyGram
Supply Ability
400 sets per month
Product Description

 Permanent Magnet Generator

 

 

 

PMG Parameters

 

 
Rated power 0.5kW-5000kW
Rated rotate speed 20rpm-3000rpm
Rated voltage 48VAC - 1140VAC
Wending Method Y
Generator type Permanent Magnet AC
Number of phase Three phase
Classification of degrees IP54
Generator shell material

Steel

 

 

Product Advantage

 

1 Rare earth Nd-Fe-B permanent magnets
2 Low Speed
3 Direct Drive ,no use gear-box
4 SKF bearing
5 Power factor close to 1
6 Maintenance free , can be used in all environments .
7 Long life time >20years, could run at high speed 24 hours 365 days .
8 Multi poles design, improve the frequency and efficiency of rectifiers and inverters.
9 Customized : Voltage, Speed, Power, Frequency etc.
10 H class insulation, vacuum pressure impregnation.
11 Excellent heat dissipation , also can add fan cooling
 

 

Product Parameters

 

 

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
4MW 600rpm~3000rpm 690V~1140Vac 10Hz~60Hz
5MW 600rpm~3000rpm 690V~1140Vac 10Hz~60Hz
 
 
System Solution

GREEF Technical Team can provide the complete ON-grid and Off-grid solution for the project which used our permanent magnet generator . 

All the equipments can be produced according to customer's specific requirements  

 Low Rpm Permanent Magnet Alternator / Permanent Magnet Synchronous Generator 0Low Rpm Permanent Magnet Alternator / Permanent Magnet Synchronous Generator 1

 

Packaging & Shipping

 

 

1. Greef generator use inner foam protection, outer Plywooden case.

2. Package size and weight, please contact our sales.

3. Shipping by sea with FCL / LCL to your nearest port 

    Or Shipping by air to your nearest airport

    Or Shipping by DHL/FedEx/UPS/TNT to your door

 

 

Our Services

 

All GREEF Generators are 3 years warranty for free, 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

 

Qingdao Greef New Energy Equipment Co., Ltd are global supplier which focus on

 

Permanent Magnet generator, wind and solar hybrid generator systems solution,wind turbine

 

blades, controller, invertor etc. 

 

GREEF have its own engineer design team which design products ourselves. 

 

Low Rpm Permanent Magnet Alternator / Permanent Magnet Synchronous Generator 2

 

FAQ

 1. Q: How your permanent magnet generator work? 

    A: Our generator need to be drive by other energy, like wind power, water power, belt, etc, then it can generating electric power.

 

2. Q: Can your magnetic generator produce electrical power by itself?

    A: No, please refer A1.


3. Q: What is the power of your generator?
    A: We can manufacture from 100w to 5000kw.


4. Q: What is the rotate speed of your generator? 
    A: From 20rpm to 3000rpm.


5. Q: Can you manufacture customized product?
    A: Yes, we can.

    Please tell your detailed request (power, rpm, voltage, size, color) to our sales, we will made the generator according to your request.


6. Q: Can your company provide OEM service?
    A: Yes, we can. 

 

 

If you have other requirements or questions, please feel free to contact us, we will reply you within 24 hours!

 

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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