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20kw 100rpm Low Torque Low Speed Hydro Permanent Magnetic Generator
US$500.00-130,000.00
1 Set
Product profile
Customization
AvailableOutput Type
AC Three PhaseOutput Power
50W ~ 5600kwModel NO.
GDFOptional Rpm
20rpm ~ 3000rpmOptional Voltage
48/96/120/220/230/240/380/400/690/1140VACApplication
Wind Turbine, Hydro ProjectProtection Grade
IP54 or Customized by Your NeedStructure
SteelMagnetic
Neodymium Magnet NdFeB N38shCharacteristic
Permanent Magnet Synchronous GeneratorShaft Quantity
Single Shaft or Double ShaftWeight Range
30kg ~ 13 TonTransport Package
Wooden CaseSpecification
Depnds on the generator sizeTrademark
GREEFOrigin
ChinaHS Code
85016100Production Capacity
400 Sets Per MonthKey features
Customizable Power Range: Output power can be customized from 50W to 5600kW to meet specific project needs.
Wide Speed Adjustment: Optional RPM ranges from 20rpm to 3000rpm, suitable for low-speed applications.
Flexible Voltage Options: Voltage can be customized, including 48V to 1140VAC, to match grid requirements.
High Efficiency Design: Multi-pole design improves frequency and efficiency of rectifiers and inverters.
Durable Construction: Uses Neodymium Magnet NdFeB N38sh and steel shell for long life over 20 years.
Complete System Solution: Technical team provides complete on-grid and off-grid solutions for wind and hydro projects.
3-Year Free Warranty: All generators come with a 3-year free warranty covering quality problems and parts.
Lifetime Technical Support: Provides lifelong technical support and part cost supply for all GREEF generators.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-03-18Nearest Port: QINGDAOAverage Response Time: ≤7.45hTerms 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:How does your permanent magnet generator work?
A:
Our generator needs to be driven by other energy sources, such as wind power, water power, or a belt, to generate electric power.
Q:Can your magnetic generator produce electrical power by itself?
A:
No, it requires an external energy source to drive it.
Q:What is the power range of your generator?
A:
We can manufacture generators with power ranging from 100W to 5000kW.
Q:What is the rotate speed range of your generator?
A:
The rotate speed ranges from 20rpm to 3000rpm.
Q:Can you manufacture customized products?
A:
Yes, we can. Please provide detailed requests for power, rpm, voltage, size, and color to our sales team, and we will make the generator according to your request.
Send Inquiry
*To:
Qingdao Greef New Energy Equipment Co., Ltd.
Qingdao Greef New Energy Equipment Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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