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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

Brand Name:

Greef

Certification:

Model Number:

GDG

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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

Product Details

Structure:

Inner/Outer Rotor

Shaft Material:

Steel

Rotor Type:

Rare Earth Permanent Magnet

Efficiency:

>92%

Start Torque:

<0.03N/M

Power Range:

0.2-100 KW

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

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

Inner Rotor Electric Motor 0.2 to 100 KW

Engineered for Higher Reliability Enhancing Performance in Industrial Settings

Product Overview

The GREEF NEW ENERGY GDG series disc-type permanent magnet generator features a unique spindle and rotor arranged in a disc shape configuration. The stator is fixed at the center while the rotor rotates on both sides, with the spindle containing only windings without an iron core.

Both stator and rotor are designed as flat disc structures utilizing an axial air gap magnetic flux mechanism, alternately positioned along the axial direction for a compact and efficient magnetic flux path.

The short axial length and large diameter support multi-pole design, resulting in high power-to-mass ratio, low-speed operation, low wind speed start capability, compact size, reduced energy consumption, lightweight build, and overall high efficiency.

Available in two main variants: outer rotor type (stationary shaft with rotating casing) and inner rotor type (fixed casing with rotating shaft).

Key Features

Low Start Torque Technology: Starting torque less than 0.1 N*m through elimination of hysteresis and gear notch effects
High Efficiency: No core reduces mechanical resistance and energy losses with "Precise Coil" technology
Advanced Magnet Design: Rare earth permanent magnets with multiple poles and small air gap for high power density
Gearless Direct Drive: Brushless mechanism requiring no maintenance with enhanced reliability
Higher Reliability & Longevity: Special structural design for greater power-to-volume and power-to-weight ratios, 8x longer lifespan
Optimized for Low Wind Speeds: Higher utilization in low wind speed conditions
Excellent Heat Dissipation: Aluminum alloy outer frame with engineered internal structure

Technical Specifications

Parameter	Specification
Material	Aluminum Alloy
Mounting Type	Flange Or Foot Mounted
Generator Shell Material	Aluminum Alloy
Power	0.2-100 KW (large output power)
Shaft Material	Steel
Phase Type	3 Phase
Noise Level	Low Noise Operation
Rotor	Rare Earth Permanent Magnet (outer-rotor generator)
Structure	Inner/Outer Rotor
Efficiency	>92% (large output power)

Applications

Wind Power Generation: Enhanced output density for megawatt-class wind turbines with reduced iron-related and hysteresis losses
Renewable Energy: Solar and wind energy systems requiring efficient energy conversion and reliable operation
Industrial Applications: Backup or auxiliary power supplies for industrial machinery and equipment
Customized Applications: Tailored solutions for specific power, rotational speed, and output voltage requirements

Customization Services

Greef offers customization for the Coreless Permanent Magnet Generator (model GDG), a high-efficiency outer-rotor generator with efficiency greater than 92%.

Power Range: 0.2 to 100 KW

Mounting Options: Flange or Foot Mounted

Winding Method: Y

Shell Material: Aluminum Alloy

Delivery Time: 25 working days

Certification: CE Certified

Minimum order quantity: 1 set. Payment terms: T/T, Western Union, MoneyGram, L/C.

Packing & Shipping

Each unit is securely packaged in custom-fitted foam within double-walled cardboard boxes with moisture-resistant wrapping. Clear labeling and handling instructions ensure proper identification.

Shipping via trusted carriers with tracking options. Bulk orders utilize pallets with additional strapping and corner protectors for stability.

Upon receipt, inspect packaging for damage and report any issues immediately to our customer service team.

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

Get Best Price

Coreless Permanent Magnet Generator with Low Start Torque High Efficiency and Maintenance-Free Design for Heavy Duty Applications

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 (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications

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

Coreless Permanent Magnet Generator with Low Start Torque High Efficiency and Maintenance-Free Design for Heavy Duty Applications