How is the product packaged for shipping?

Generators are protected with inner foam and packed in outer plywood cases. The shaft uses pipe protection. Shipping can be by sea (FCL/LCL) or air.

What is the efficiency rating of the generator?

The generator has an efficiency of greater than 85%, ensuring high generating efficiency and low mechanical resistance energy loss.

What is the expected lifespan of the generator?

The generator is designed for a long life, estimated at 20 years, which is 8 times longer than traditional motor structures.

3kw 100rpm Coreless Disc Alternator for Vertical Axis Windmill

Name: 3kw 100rpm Coreless Disc Alternator for Vertical Axis Windmill
Brand: Qingdao Greef New Energy Equipment Co., Ltd.
SKU: 715037462

Shandong, ChinaQingdao Greef New Energy Equipment Co., Ltd.

US$200.00-9,000.00

1 Set

Product profile

Customization

Available

Output Type

AC Three Phase

Number of Blade

Three Blade

Model NO.

GDG

Rotating Shaft

Vertical

Stress Way of Blade

Lift Force

Power

＜10kW

Phase

Three Phase

Certification

CE, ISO, RoHS, UL TUV

Generator Type

3 Phase AC Coreless Permanent Magnet Generator

Rated Power

0.3/0.5/1/2/3/5/10kw

Rated Speed

100-300rpm

Rated Voltage

12-400VAC

Start Torque

< 1 N.M

Generator Shell Material

Aluminum Alloy

Magnetic Material

ND-Fe-B

Structure

out Rotor

Lifetime

20 Years

Service

OEM

Transport Package

Plywood Case

Specification

1 CBM

Trademark

GREEF

Origin

China

HS Code

85016100

Production Capacity

1000 Sets/Year

Key features

Low Start Torque: Utilizes precise coil technology to achieve start torque as low as <0.1 N.M for efficient low wind speed operation.

Coreless Design: Disc coreless structure reduces volume and weight while eliminating gear notches and hysteresis effects.

High Efficiency: Generates >85% efficiency with high power-to-volume ratio and low mechanical resistance energy loss.

Durable Construction: Aluminum alloy shell and Nd-Fe-B magnets ensure long life, 8 times longer than traditional motors.

Versatile Application: Suitable for vertical/horizontal wind turbines, hydroelectric, and diesel generator systems requiring low RPM.

Customizable Specs: Rated power from 0.3-10kW and speed 100-300rpm are customizable to meet specific project needs.

Comprehensive Warranty: Free 3-year warranty covering parts and labor, with lifelong technical support and spare parts supply.

Robust Certification: Certified by CE, ISO, RoHS, UL, and TUV for use in harsh and extreme environmental conditions.

Company profile

Qingdao Greef New Energy Equipment Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-03-18Nearest Port: QINGDAOAverage Response Time: ≤7.40hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryQingdao Greef New Energy Equipment Co., Ltd. is identified as both a trading company and manufacturer/factory in China, offering wind turbines, permanent magnet generators, hybrid systems, and related equipment. Its stated capabilities include generator coverage from 500W to 5MW, two production lines, annual output of 1,000 wind turbine/permanent magnet generator sets, and 6–10 R&D engineers and quality-control staff. The company reports QHSE, ISO 9001, and HSE management certifications, CE-certified exports, warranty periods of 3–5 years, and after-sales service as part of its end-to-end offering. Evidence also supports customization through design, prototyping, production, and quality-control services. However, the provided information does not sufficiently establish financial credibility or a broad customer track record; only one buyer and one trade transaction are listed.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory. Its stated product portfolio includes wind turbine systems, permanent magnet generators, controllers, inverters, solar systems, and batteries, supporting a combined manufacturing and trading role.

CertificationsThe supplier states that its management systems include QHSE, ISO 9001, and HSE. It also states that products exported to Europe, South America, and North America carry CE certification, indicating documented management-system and product-certification claims.

After-Sales capabilityThe company describes end-to-end services including after-sales service and states that exported products have 3–5 year warranty periods. It also claims rapid response and guaranteed quality and on-time delivery through Alibaba Trade Assurance, providing explicit support for post-sale capability.

R&D capabilityThe supplier states that its permanent magnet generators range from 500W to 5MW and offers multiple renewable-energy technologies, including vertical- and horizontal-axis wind turbines, hybrid systems, and disc coreless generators. Its stated engineering and renewable-energy innovation activities support innovation capability, although no independently verified R&D results are provided.

Production capacityThe supplier reports two production lines and annual output of 1,000 wind turbine/permanent magnet generator sets. It also states generator coverage from 500W to 5MW and has 6–10 quality-control staff, providing explicit evidence of established production capacity.

Customization capabilityThe company explicitly claims customized end-to-end solutions covering design planning, schematic development, 3D renderings, physical prototyping, volume production, quality control, and after-sales service. This directly supports customization capability across product-development and delivery stages.