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Home > Products > Coreless Permanent Magnet Generator >
High Power-to-Volume Ratio Coreless Permanent Magnet Generator with 8X Extended Lifespan and Low Start Torque

High Power-to-Volume Ratio Coreless Permanent Magnet Generator with 8X Extended Lifespan and Low Start Torque

High Power Volume Ratio

Extended Lifespan Alternator

Special Structure Generator

Place of Origin:

Qingdao, Shandong, China

Brand Name:

Qingdao Greef

Certification:

CE, ISO 9001:2015

Model Number:

GDG-HR-PV

Contact Us
Request A Quote
Product Details
Lifespan:
8 Times Longer Than Traditional Generator
Power To Volume Ratio:
Superior Compact Design
Power To Weight Ratio:
Lightweight High Output
Phase:
3 Phase AC
Efficiency:
Above 85%
Start Torque:
Less Than 0.1 N.M
Highlight:

High Power Volume Ratio

,

Extended Lifespan Alternator

,

Special Structure Generator

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
Product Description
High Reliability Power Volume Ratio Coreless Permanent Magnet Generator 3KW 5KW
Product Overview

This high reliability coreless permanent magnet generator features a special internal structure that achieves exceptional power-to-volume and power-to-weight ratios. Designed for mission-critical renewable energy installations where downtime is not an option.

 High Power-to-Volume Ratio Coreless Permanent Magnet Generator with 8X Extended Lifespan and Low Start Torque
Structural Excellence
  • High Power-to-Volume Ratio: Special internal structure packs maximum output into minimum space
  • High Power-to-Weight Ratio: Lightweight design reduces tower and mounting structural requirements
  • 8X Extended Lifespan: Outlasts traditional generators by 8 times, dramatically reducing replacement costs
  • Robust Aluminum Alloy Frame: Provides structural rigidity and superior heat dissipation
  • Precision Manufacturing: "Precise Coil" technology ensures consistent, reliable electromagnetic performance
Reliability Features
Feature Benefit
Gearless Direct Drive No gearbox failures – eliminates the #1 failure point in wind turbines
Brush-less Design No carbon brush wear – zero electrical contact maintenance
Coreless Stator No iron core degradation – stable performance over decades
Rare Earth NdFeB Magnets Minimal magnetic field decay – consistent output over lifetime
Sealed Bearings Contamination-proof – no lubrication required
Cost of Ownership Advantage
  • 8x longer service life means 1 generator does the work of 8 traditional units
  • Maintenance-free operation eliminates ongoing service costs
  • Higher wind utilization increases annual energy revenue
  • Compact size and light weight reduce installation and transport costs
Peace of Mind: CE and ISO 9001:2015 certified. Covered by 3-year warranty with global technical support. OEM customization available.
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.”

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