logo
player background
live avator

5s
Total
0
Today
0
Total
0
Today
0
  • What would you like to know?
    Company Advantages Sample Service Certificates Logistics Service
Online Chat WhatsApp Inquiry
Auto
resolution switching...
Submission successful!
Home > Products > Coreless Permanent Magnet Generator >
Y Winding Method Coreless Permanent Magnet Generator with Low Start Torque and Maintenance-free Design for Industrial Applications

Y Winding Method Coreless Permanent Magnet Generator with Low Start Torque and Maintenance-free Design for Industrial Applications

Brand Name:

Greef

Certification:

CE

Model Number:

GDG

Contact Us
Request A Quote
Product Details
Wending Method:
Y
Frequency:
50/60HZ
Maintenance:
Maintenance-free
Bearing:
NSK Deep Groove Ball Bearing
Generator Shell Material:
Aluminum Alloy
Phase Type:
3 Phase
Mountingtype:
Flange Or Foot Mounted
Shaft Material:
Steel
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
Supply Ability
Product Description
Y Wending Method Coreless Permanent Magnet Generator 3 Phase Flange Or Foot Mounted
GDG series disc-type permanent magnet generator external view Generator internal disc configuration showing stator and rotor Close-up of coreless winding structure Generator mounting options and dimensions Application in wind turbine system
Product Overview

The GREEF NEW ENERGY GDG series disc-type permanent magnet generator features an innovative coreless design with spindle and rotor stacked in a disc configuration. The stator remains fixed at the center while the rotor rotates on both sides, utilizing axial air gap magnetic flux technology.

This unique flat disc structure with short axial length and large diameter enables a multi-pole configuration, delivering high power-to-mass ratio, low speed rating, and low wind speed startup capability. Available in both outer rotor and inner rotor variants to suit different application requirements.

Key Features
  • Low Start Torque Technology: Less than 0.1 N*m starting torque with no hysteresis or gear notch effects
  • High Efficiency Design: Coreless construction minimizes mechanical resistance and energy loss
  • Precise Coil Technology: Combined with rare earth permanent magnets for high power density
  • Maintenance-Free Operation: Gearless direct drive with brushless configuration
  • Enhanced Reliability: 8x longer lifespan than traditional generators
  • Low Wind Performance: Optimal operation in low wind conditions
  • Superior Heat Dissipation: Aluminum alloy frame with unique internal cooling structure
Applications
  • Wind Power Generation: Ideal for megawatt-class wind turbines with enhanced power output density
  • Renewable Energy Systems: Solar power and other renewable energy applications
  • Industrial Power Sources: Backup and auxiliary power for critical equipment
  • Customized Solutions: Tailored to specific power output, speed, and voltage requirements
Technical Specifications

Model: GDG Series

Type: 3-Phase Coreless Permanent Magnet Generator

Rated Power: 0.05 to 100kW

Frequency: 50/60Hz

Mounting: Flange or Foot Mounted

Housing Material: Aluminum Alloy

Insulation Resistance: Minimum 100MΩ at 501V DC

Certification: CE Certified

Customization & Ordering

Greef offers fully customizable Coreless Permanent Magnet Generators with flexible parameters including power output, operating speed, and voltage levels. Minimum order quantity is 1 set with negotiable pricing based on customization requirements.

Delivery Time: Approximately 25 working days

Payment Terms: T/T, Western Union, MoneyGram, L/C

Packaging & Shipping

Each generator is carefully protected with anti-static foam and placed in custom-fitted cardboard boxes. Additional protection includes reinforced tape, fragile labeling, and palletization with shrink-wrapping for multiple units.

We provide worldwide shipping via air freight, sea freight, and ground transport with full tracking and optional insurance coverage.

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
“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.”

Send your inquiry directly to us

Privacy Policy China Good Quality Permanent Magnet Alternator Supplier. Copyright © 2019-2026 Qingdao Greef New Energy Equipment Co., Ltd . All Rights Reserved.