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Low Start Torque Coreless Permanent Magnet Generator with High Power Density and Maintenance-Free Axial Flux Design

Brand Name:

Greef

Certification:

Model Number:

GDG

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Low Start Torque Coreless Permanent Magnet Generator with High Power Density and Maintenance-Free Axial Flux Design

Product Details

Power Range:

0.2-100 KW

Material:

Aluminum Alloy

Phase Type:

3 Phase

Start Torque:

<0.03N/M

Mounting Type:

Flange Or Foot

Rotor Type:

Rare Earth Permanent Magnet

Payment & Shipping Terms

Minimum Order Quantity

1Set

Price

Negotiable

Packaging Details

Foam+plywooden Case

Delivery Time

25 Working Days

Payment Terms

T/T,Western Union,MoneyGram,L/C

Supply Ability

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03 N*m) and Axial Flux Design for Industrial Applications

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High Efficiency >92% Coreless Permanent Magnet Generator with Low Start Torque <0.03N/M and Coreless Wire Coil Stator

Get Best Price

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications

Get Best Price

High Efficiency Coreless Permanent Magnet Generator with Aluminum Alloy Shell and Low Noise Operation for Microgrid Systems

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Product Description

Start Torque Less Than 0.03N·M Coreless Permanent Magnet Generator

Product Overview

The GREEF NEW ENERGY GDG series disc type permanent magnet generator features an innovative coreless design where the spindle and rotor are assembled in a disc-shaped stack. The stator remains fixed at the center while rotors rotate on both sides, with the spindle containing only windings and omitting traditional iron cores.

Both stator and rotor utilize a flat disc structure with axial air gap magnetic flux, alternately arranged along the axial direction. This configuration enables a short axial length with large diameter, supporting multi-pole design for high power-to-mass ratio, low speed rating, and low wind speed startup capability.

Available in outer and inner rotor models, the GDG series offers compact size, low energy consumption, lightweight construction, and robust efficiency, making it ideal for direct-drive vertical axis wind turbines.

Key Features

Low Start Torque Technology: Starting torque less than 0.1 N·m ensures smooth operation from startup
High Efficiency: Coreless design reduces mechanical resistance and energy loss
Advanced Magnetic Design: Rare earth permanent magnets with multiple poles and small air gap
Gearless Direct Drive: Brush-less design requires no maintenance
Higher Reliability: Eight times longer lifespan than traditional generators
Optimized for Low Wind Speeds: Enhanced utilization in low wind conditions
Excellent Heat Dissipation: Aluminum alloy frame with specialized internal structure

Technical Specifications

Structure	Inner/Outer Rotor
Power	0.2-100 KW
Rotor	Rare Earth Permanent Magnet
Mounting Type	Flange Or Foot Mounted
Winding Method	Y
Noise Level	Low Noise Operation
Start Torque	<0.03N·M (low start torque)
Material	Aluminum Alloy
Stator	Coreless Wire Coil (small air gap)
Phase Type	3 Phase (high efficiency)

Applications

Wind Power Generation: Ideal for megawatt-class wind turbines with enhanced output density
Renewable Energy: Solar and wind power generation systems
Industrial Applications: Backup or auxiliary power sources for critical equipment
Customized Solutions: Tailored parameters for specific operational requirements

Customization Services

Greef offers comprehensive customization for our GDG Coreless Permanent Magnet Generator, manufactured in Qingdao. This outer-rotor generator features coreless wire coil stator and operates with low noise, providing high power density solutions.

Customization Options:
• Power Range: 0.2 to 100 KW
• Mounting: Flange or foot mounted
• Packaging: Foam and plywood cases for safe delivery
• Certification: CE certified
• Minimum Order: 1 set
• Delivery: 25 working days

Contact Information:
Pricing is negotiable with payment terms including T/T, Western Union, MoneyGram, and L/C. Contact Greef today to customize your coreless permanent magnet generator.

Packaging & Shipping

Product Packaging: Each generator is securely placed in custom foam inserts within sturdy double-walled cardboard boxes with moisture-resistant wrapping and clear handling instructions.

Shipping: Reliable shipping via trusted carriers with tracking information. Standard or expedited methods available with full insurance coverage for damage protection.

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

3 stars

2 stars

1 stars

All Reviews

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.”

Tags：

Coreless Permanent Magnet Generator with Low Start Torque High Efficiency and Low Noise Operation for Precision Equipment

Get Best Price

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03 N*m) and Axial Flux Design for Industrial Applications

Get Best Price

High Efficiency >92% Coreless Permanent Magnet Generator with Low Start Torque <0.03N/M and Coreless Wire Coil Stator

Get Best Price

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications

Get Best Price

High Efficiency Coreless Permanent Magnet Generator with Aluminum Alloy Shell and Low Noise Operation for Microgrid Systems

Get Best Price

Send your inquiry directly to us

Qingdao Greef New Energy Equipment Co., Ltd

Low Start Torque Coreless Permanent Magnet Generator with High Power Density and Maintenance-Free Axial Flux Design

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03 N*m) and Axial Flux Design for Industrial Applications

High Efficiency >92% Coreless Permanent Magnet Generator with Low Start Torque <0.03N/M and Coreless Wire Coil Stator

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications

High Efficiency Coreless Permanent Magnet Generator with Aluminum Alloy Shell and Low Noise Operation for Microgrid Systems

Overall Rating

Rating Snapshot

All Reviews

low speed dc generator

low rpm wind generator

magnetic energy generator

Coreless Permanent Magnet Generator with Low Start Torque High Efficiency and Low Noise Operation for Precision Equipment

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03 N*m) and Axial Flux Design for Industrial Applications

High Efficiency >92% Coreless Permanent Magnet Generator with Low Start Torque <0.03N/M and Coreless Wire Coil Stator

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications

High Efficiency Coreless Permanent Magnet Generator with Aluminum Alloy Shell and Low Noise Operation for Microgrid Systems