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Home > Products > Permanent Magnet Alternator >
NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator

NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator

Hydro Permanent Magnetic Generator

50RPM Permanent Magnetic Generator

NdFeB Permanent Magnetic Generator

Place of Origin:

Qingdao

Brand Name:

GREEF

Certification:

CE

Model Number:

GDF

Contact Us
Request A Quote
Product Details
Type:
5kw To 5000KW Permanent Magnet Alternator
Highlight:

Hydro Permanent Magnetic Generator

,

50RPM Permanent Magnetic Generator

,

NdFeB Permanent Magnetic Generator

Payment & Shipping Terms
Minimum Order Quantity
1
Delivery Time
3week
Payment Terms
L/C, Western Union, MoneyGram
Supply Ability
5
Product Description

 
Permanent Magnet Alternator Generator  

 

 
Product Description

 
 

GreeF company supply variety of permaent magent generators which is suitable for driven by following equipment to
  1. Driven by Wind Power --------Wind turbine
  2. Driven by Water Power ------- Hydro generator
  3. Driven by Belt with Motors
  4. Driven by Motor
  5. Driven by test plant
  6. Driven by yourselves creation

 

Advantages
 

1. Rare earth Nd-Fe-B permanent magnet generator. energy save energy more than 15% than ordinary generators.
2. Permanent magnet rotor structure, no excitation winding, no carbon brushes, no slip rings, no need gear box. Simple structure, reliable ,durable and Maintenance free.
3. Multi poles design, improve the frequency and efficiency of rectifiers and inverters. Saving cost .
4. Started directly, without control cabinet, replace the asynchronous motor totally.
5. H class insulation, vacuum pressure impregnation.
6. Use SKF bearings
7. Power factor close to 1,no need add power factor compensation equipment.
8. Small heat, aslo can add fan cooling or water cooling
9. Long life time >20years, Strong rotors, could run at high speed.24hours 365days running.
10. Energy-saving, return investment within 1-2years.

 

 
NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator 0

 
 
Customized
Voltage, Speed, Power ,Frequency.
Customized shaft size ,Spline shaft, biaxial extension, flange can be used.
Varity structures design : vertical axis, horizontal axis, internal rotor, external rotor, plate type. NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator 1

 
Drawing Sample

 
 
NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator 2

 
Packaging & Shipping
 

1. Alternator for wind generator use inner foam protection outer Plywooden case .
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.
 
NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator 3

 

 
Our Services

 
 
Generators are 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.

NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator 4

NdFeB 20KW 50RPM Hydro Permanent Magnetic Generator 5
 
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

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.
L
L*s
Czech Republic May 4.2023
“I built a small pico hydro system on the creek behind my off-grid cabin. The water head is only 3 meters and flow rate around 0.2 m³/s – too low for most generators. This axial flux coreless unit starts generating usable power at just 150 RPM. No cogging, no iron loss, and it’s silent. I’m getting 300-400W continuously, 24/7. My old induction generator would barely light an LED at that speed. Absolutely perfect for low-head hydro.”

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