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High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03 N·m) and Aluminum Alloy Shell

Brand Name:

Greef

Certification:

Model Number:

GDG

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High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03 N·m) and Aluminum Alloy Shell

Product Details

Phase Type:

3 Phase

Efficiency:

>92%

Power Range:

0.2-100 KW

Start Torque:

<0.03 N·m

Shell Material:

Aluminum Alloy

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

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

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

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Product Description

Aluminum Alloy Coreless Permanent Magnet Generator

Offering efficiency over 92% with Wending Method Y design for optimal performance

Product Overview

The GREEF NEW ENERGY GDG series disc-type permanent magnet generator features a unique stacked disc design where the spindle and rotor are arranged in a disc shape. The stator remains fixed in the central position while the rotor rotates on both sides. Unlike conventional generators, the spindle contains only windings without an iron core.

Both stator and rotor are constructed as flat disc structures utilizing axial air gap magnetic flux, arranged alternately along the axial direction. The short axial length and large diameter enable easy implementation of multi-pole structures, resulting in high power-to-mass ratio, low speed rating, low wind speed starting capability, compact size, low energy consumption, light weight, and high efficiency.

Key Features

Low Start Torque Technology: Eliminates hysteresis and gear notch effects with starting torque less than 0.1 N·m
High Efficiency Design: Coreless construction reduces mechanical resistance and energy loss
Advanced Magnetic System: Rare earth permanent magnets with multiple poles and small air gap for high power density
Maintenance-Free Gearless Direct Drive: Brushless design minimizes mechanical wear
Higher Reliability and Longevity: Service life up to eight times longer than traditional generators
Enhanced Low Wind Speed Utilization: Improved efficiency in varied environmental conditions
Exceptional Heat Dissipation: Aluminum alloy frame with specialized internal structure

Technical Specifications

Structure	Inner/Outer Rotor
Winding Method	Y
Start Torque	<0.03 N·m
Efficiency	>92%
Generator Shell Material	Aluminum Alloy
Phase Type	3 Phase
Stator	Coreless Wire Coil
Shaft Material	Steel
Power Range	0.2-100 KW
Rotor	Rare Earth Permanent Magnet

Applications

Wind Power Generation: Ideal for direct-drive vertical axis wind turbines, particularly in megawatt-class applications
Renewable Energy: Solar and wind power systems requiring efficient energy conversion
Industrial Applications: Backup or auxiliary power sources for critical equipment
Customized Solutions: Tailored configurations for specific power, speed, and voltage requirements

Customization Options

Greef offers customized Coreless Permanent Magnet Generators (Model GDG) with inner-rotor design featuring small air gap for high efficiency and reliability. Power output ranges from 0.2 to 100 KW with aluminum alloy shell, 3-phase configuration, and Y winding method. All units are CE certified.

Order Details: Minimum order quantity: 1 set. Packaging: Foam and plywood cases. Delivery: Approximately 25 working days. Payment: T/T, Western Union, MoneyGram, L/C accepted.

Packaging & Shipping

Packaging: Each unit is secured in custom-fitted foam inserts within sturdy double-walled cardboard boxes with moisture-resistant wrapping and clear fragile labeling.

Shipping: Worldwide tracked and insured shipping with careful handling by logistics partners. Expedited options available upon request.

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

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Qingdao Greef New Energy Equipment Co., Ltd

High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03 N·m) and Aluminum Alloy Shell

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

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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