What is the expected lifespan of the generator?

The generator is designed for a long life of 20 years, offering 8 times the lifespan of traditional motors due to its special structure.

What is the efficiency of the generator?

The generator maintains an efficiency of over 85% with high generating efficiency and low mechanical resistance energy loss.

Do you provide technical support after the warranty?

Yes, we provide all-lifelong technical support. After the warranty period, we supply parts and labor for a fee if damage occurs.

500W 200rpm Small Permanent Magnet Coreless Generator/Alternator

Name: 500W 200rpm Small Permanent Magnet Coreless Generator/Alternator
Brand: Qingdao Greef New Energy Equipment Co., Ltd.
SKU: 798050225

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: Start torque as low as <0.1 N.M enabling operation at very low wind speeds.

Coreless Design: Disc coreless structure reduces volume, weight, and eliminates gear notches.

High Efficiency: Efficiency exceeds 85% with low mechanical resistance and energy loss.

Durable Materials: Constructed with high-stability Nd-Fe-B magnets and aluminum alloy shell.

Long Lifespan: Designed for a service life of 20 years, 8 times longer than traditional motors.

OEM Service: Customizable rated power from 0.3kW to 10kW and voltage from 12V to 400VAC.

Free Warranty: Comes with a 3-year free warranty covering parts and labor for quality issues.

Versatile Application: Ideal for vertical axis wind turbines, hydroelectric systems, and diesel generators.

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.

Product Q&A

Q:What is the warranty period?

We provide a free 3-year warranty starting from the shipment date. During this period, we cover all costs for maintenance and freight for quality issues.

Q:What is the start torque of the generator?

The generator features extremely low start torque, ranging from <0.1 N.M to <1 N.M depending on the model, allowing operation at very low wind speeds.

Q:Can the generator be customized?

Yes, we offer OEM services with customizable rated power (0.3-10kW), rated speed (100-300rpm), and voltage (12-400VAC).

Q:What materials are used for the generator?

The generator uses high-stability Nd-Fe-B magnetic materials, an aluminum alloy shell, carbon steel shaft, and deep groove ball bearings.

Q:How is the generator packaged for shipping?

The generator is protected with inner foam and shipped in an outer plywood case. The shaft is protected by a pipe. Shipping is available by sea (FCL/LCL) or air.