Permanent magnet generator — model number PMG Series. The complete factory specification follows. Made by Qingdao Greef New Energy Equipment Co., Ltd. (13 years on the platform, factory-assessed). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Permanent Magnet Generator
- Model Number: PMG Series
- Rated Power: 50w-5Mw
- Output Voltage: 12-1140vac
- Generator Material: 100% Copper wire+Nd-Fe-B
- Rated Rotor Speed: 20-3000RPM
- Warranty: 3 Years
Technical Specifications
| Output Voltage | 12-1140vac |
|---|---|
| Place Of Origin | Shandong, China |
| Brand Name | Greef |
| Model Number | PMG Series |
| Rotor Diameter | yes |
| Rated Power | 50w-5Mw |
| Rated Rotor Speed | 20-3000RPM |
| Generator Type | 3 Phase AC Permanent-magnet |
| Generator Material | 100% Copper wire+Nd-Fe-B |
| Portection Grade | IP 54 |
| Bearing Brand | SKF |
| Wending Method | Star/Y |
| Life Time | 20 Years |
| Application | Wind/Water Turbine |
| Warranty | 3 Years |
| Selling Units | Single item |
| Single Package Size | 50.00X50.00X50.00 cm |
| Single Gross Weight | 230.0 kg |
Product Details








Permanent Magnet Generators are used in a large number of applications such as Wind Turbines, Hydro Turbines, motors and others.
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 | 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 |












GREEF Company provide customized generator according to each customer 's requirements of Voltage, Speed, Power, Frequency etc.






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
If you have any requests in package and shipping , please contact us directly.


Permanent Magnet 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.




"GREEF" have its own engineer design team which is design products ourselves. Moreover, we have successfully obtained CE approvals and supports from our customers, which boost our business day by day!
Believe in us, we can accompany you forever.




Ordering and Pricing
- Minimum order quantity: 1 set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this permanent magnet generator?
The standard minimum order quantity is 1 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 3 Years warranty. Spare parts and technical support remain available after the warranty period.
Can the permanent magnet generator be supplied for my local voltage?
The standard configuration is 12-1140vac. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Qingdao Greef New Energy Equipment Co., Ltd., based in China. The company 13 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Qingdao Greef New Energy Equipment Co., Ltd. range on HVACR Nexus.
See more in External Rotor Motors on HVACR Nexus.




















