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20kw 50 Rpm Permanent Magnet Generator, High Quality Low Speed Alternator
US$1,000.00-10,000.00
1 Piece
Product profile
Customization
AvailableOutput Type
AC Three PhaseSize
CustomizedModel NO.
GDFType
Horizontal Hydro GeneratorBearing Support
Hanging TypeSpeed
Low SpeedBearing Number
2Standard
NonstandardOutput Power
50W ~ 5600kwOptional 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-10 TonsTransport Package
Wooden CaseSpecification
Depnds on the generator sizeTrademark
GREEFOrigin
ChinaHS Code
85016100Production Capacity
400 Sets Per MonthKey features
Customizable Design: Customized size, voltage, RPM, power, and color available based on specific requirements.
Wide Power Range: Manufacturing capacity spans from 100W to 5000kW to suit various project scales.
Broad Speed Range: Operable rotation speeds range from 20rpm to 3000rpm for diverse applications.
High Efficiency: Brushless design with no excitation control box ensures high efficiency across all speeds.
Low Speed Operation: Direct drive capability eliminates the need for a speed increaser.
Flexible Structure: Available with single or double shaft options and customizable nacelle designs.
Global Certification: Products hold CE approvals and are designed by an in-house engineering team.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-03-18Nearest Port: QINGDAOAverage Response Time: ≤7.66hTerms 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 your permanent magnet generator work?
A:
Our generator need to be drive by other energy, like wind power, water power, belt, etc, then it can generating electric power.
Q:Can your magnetic generator produce electrical power by itself?
A:
No, please refer A1.
Q:What is the power of your generator?
A:
We can manufacture from 100w to 5000kw.
Q:What is the rotate speed of your generator?
A:
From 20rpm to 3000rpm.
Q:Can you manufacture customized product?
A:
Yes, we can. Please tell your detailed request (power, rpm, voltage, size, color) to our sales, we will made 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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