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Home > Products > Coreless Permanent Magnet Generator >
Rare Earth NdFeB Multi-Pole Coreless Permanent Magnet Generator with Low Start Torque <0.1N.M for Wind Turbines

Rare Earth NdFeB Multi-Pole Coreless Permanent Magnet Generator with Low Start Torque <0.1N.M for Wind Turbines

NdFeB Rare Earth Rotor

Multi-Pole Magnetic Circuit

Small Air Gap Design

Place of Origin:

Qingdao, Shandong, China

Brand Name:

Qingdao Greef

Certification:

CE, ISO 9001:2015

Model Number:

GDG-NdFeB-MP

Contact Us
Request A Quote
Rare Earth NdFeB Multi-Pole Coreless Permanent Magnet Generator with Low Start Torque <0.1N.M for Wind Turbines
Rare Earth NdFeB Multi-Pole Coreless Permanent Magnet Generator with Low Start Torque <0.1N.M for Wind Turbines
Product Details
Magnet Material:
NdFeB Rare Earth Permanent Magnet
Rotor Type:
Multi-Pole Permanent Magnet Rotor
Air Gap:
Small Air Gap Design
Phase:
3 Phase AC
Efficiency:
Above 85%
Start Torque:
Less Than 0.1 N.M
Highlight:

NdFeB Rare Earth Rotor

,

Multi-Pole Magnetic Circuit

,

Small Air Gap Design

Payment & Shipping Terms
Minimum Order Quantity
1 Piece
Price
USD 350-2800 / Piece
Packaging Details
Wooden case with foam insert, export-grade packaging
Delivery Time
7-15 working days
Payment Terms
T/T,L/C,Western Union
Supply Ability
5000 Pieces per Month
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Product Description
Rare Earth NdFeB Multi-Pole Coreless Permanent Magnet Generator 3KW 5KW 10KW
Advanced Rare Earth Permanent Magnet Technology
The coreless permanent magnet generator utilizes premium NdFeB rare earth permanent magnets in a multi-pole rotor configuration. Combined with a small air gap design, this generator delivers exceptional power density and large output power for demanding renewable energy applications.
Rare Earth NdFeB Multi-Pole Coreless Permanent Magnet Generator technical diagram
Key Technology Features
  • Rare Earth NdFeB Permanent Magnet: High-grade neodymium magnets (N38SH-N45H) provide superior magnetic field strength and long-term stability
  • Multi-Pole Rotor Design: Increased pole count enables higher frequency output at low rotational speeds
  • Small Air Gap Construction: Precision-engineered air gap minimizes magnetic flux leakage for maximum energy conversion
  • High Power Density: Compact design achieving industry-leading power-to-volume and power-to-weight ratios
  • Low Start Torque <0.1N.M: No hysteresis and gear notches effect enables ultra-easy startup in light wind conditions
Coreless Design Advantages
  • No iron core eliminates cogging torque and mechanical resistance energy loss
  • "Precise Coil" technology ensures optimal electromagnetic performance
  • High efficiency above 85% across the operating range
  • Gearless direct drive eliminates transmission losses and reduces maintenance
  • Brush-less construction with no wearing parts for extended service life
Applications
  • Vertical Axis Wind Turbines (VAWT)
  • Horizontal Axis Wind Turbines (HAWT)
  • Hydro power generation systems
  • Off-grid and hybrid renewable energy systems
Quality Assurance: CE and ISO 9001:2015 certified. Backed by 3 years warranty.
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

L
L*s
Czech Republic May 4.2023
Helpful (4)
“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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Tags：

low speed dc generator

low rpm wind generator

magnetic energy generator

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Email：admin@greefenergy.cn
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