DEMING DMG-70KVA 70KW Low RPM Permanent Magnet Generator 220/380V for Industries

Product Description

Permanent Magnet Generator
Permanent Magnet Generator Application Areas

Our permanent magnet generators are highly versatile and suitable for a wide range of industries including:

Renewable Energy

Wind power, hydropower, and ocean energy generation systems.

Industrial & Marine

Marine vessels, diesel generator configurations, and heavy duty ships.

Specialty Equipment

Aviation, military installations, and portable hand-crank generators.

Application in Wind Power Generation
Optimal Design: Especially suitable for direct-drive wind turbines.
Gearbox-Free: No gearbox required, capable of low rotor speeds and high torque.
Versatile Scaling: Suitable for small and medium-sized wind power systems, off-grid wind power, and offshore wind power.
Application in Hydropower Generation
Micro-Hydro Systems: Primarily used in small/medium hydropower stations and micro-hydropower generation systems.
Turbine Compatibility: Can be seamlessly used with axial-flow and Francis-flow turbines.
Compact & Efficient: Highly compact design with superior efficiency, making it suitable for remote areas.
Product Features
Key Features
Feature No. Description Detail
1. Customized Configuration Voltage, Speed, Power, Frequency, and more tailored to your specifications.
2. Direct Drive System No gearbox required, reducing mechanical loss and wear.
3. Premium Materials Utilizes rare earth Nd-Fe-B permanent magnets for superior performance.
4. Long Lifespan Designed for a lifetime of >20 years; built to run at high speed 24/7.
5. High Efficiency Power factor is close to 1, ensuring maximum power delivery.
6. Low Maintenance Maintenance-free operation, suitable for deployment in all environments.
Technical Specifications

We provide customized generators according to each customer's specific requirements of Voltage, Speed, Power, Frequency etc.

Specification Parameter Value / Standard
Rated Power 0.5 - 5500KW
Rated Rotate Speed 20 - 3000 rpm
Rated Voltage 48 - 1140Vac
Frequency 50 / 60Hz
Number of Poles 24
Generator Type 3 Phase AC Synchronous Generator
Magnet Type NdFeB
Winding Method Y
Magnet Temperature Level Max. 120°C
Winding Temperature Level Max. 180°C
Efficiency >95%
Insulation Grade H
Insulating Resistance 100Mohm Min (500Vdc)
Classification of Degrees IP54
Generator Shell Material Cast Iron
Winding Material 100% Copper
Shaft Material Steel
Iron Core Cold rolled silicon steel sheet
Bearing Brand SKF
Cooling Method Fan Cooling
Weight (N.W / G.W) 132kg / 152kg
Installation Horizontal
Specification Reference Image
Various Models & Selection Range
Rated Power Rated Speed Rated Voltage Frequency
0.5KW20rpm~400rpm12V~220Vac10Hz~60Hz
1KW20rpm~600rpm12V~220Vac10Hz~60Hz
2KW20rpm~1000rpm12V~400Vac10Hz~60Hz
3KW20rpm~1500rpm48V~690Vac10Hz~60Hz
5KW20rpm~1500rpm48V~690Vac10Hz~60Hz
10KW20rpm~1500rpm120V~690Vac10Hz~60Hz
15KW20rpm~3000rpm120V~690Vac10Hz~60Hz
20KW20rpm~3000rpm120V~690Vac10Hz~60Hz
25KW20rpm~3000rpm120V~1140Vac10Hz~60Hz
30KW20rpm~3000rpm120V~1140Vac10Hz~60Hz
50KW20rpm~3000rpm220V~1140Vac10Hz~60Hz
80KW20rpm~3000rpm220V~1140Vac10Hz~60Hz
100KW20rpm~3000rpm220V~1140Vac10Hz~60Hz
150KW20rpm~3000rpm380V~1140Vac10Hz~60Hz
200KW20rpm~3000rpm380V~1140Vac10Hz~60Hz
250KW20rpm~3000rpm380V~1140Vac10Hz~60Hz
300KW20rpm~3000rpm380V~1140Vac10Hz~60Hz
500KW20rpm~3000rpm380V~1140Vac10Hz~60Hz
700KW20rpm~3000rpm690V~1140Vac10Hz~60Hz
800KW20rpm~3000rpm690V~1140Vac10Hz~60Hz
1MW200rpm~3000rpm690V~1140Vac10Hz~60Hz
2MW200rpm~3000rpm690V~1140Vac10Hz~60Hz
3MW200rpm~3000rpm690V~1140Vac10Hz~60Hz
4MW600rpm~3000rpm690V~1140Vac10Hz~60Hz
5MW600rpm~3000rpm690V~1140Vac10Hz~60Hz
Various Generator Design Varieties
Various Generator Designs
Our Project Cases
Case Study 1 Case Study 2 Case Study 3 Case Study 4
Package & Delivery
Packing and Dispatch
Our Factory Overview
Factory Production Line 1 Factory Production Line 2 Testing Facility Warehouse Storage
Customer Feedback
Client Review Screenshot
Frequently Asked Questions (FAQ)
Can the generator parameters be customized?
Yes, we specialize in customization. We can adjust the Rated Power (0.5KW - 5500KW), Rotate Speed (20 - 3000 rpm), Voltage (48 - 1140Vac), and Frequency (50Hz / 60Hz) to match your specific setup.
Why choose a direct-drive generator for wind power?
Direct-drive permanent magnet generators eliminate the need for a gearbox. This allows them to run efficiently at low rotor speeds and high torque, lowering overall maintenance requirements and increasing conversion efficiency.
What materials are used in the generator's construction?
We build our generators using premium NdFeB rare earth permanent magnets, 100% copper windings, a robust steel shaft, SKF bearings, and a durable cast iron shell for maximum performance and durability.
What is the lifespan and reliability of these generators?
Our permanent magnet generators are designed for long-term continuous operation (24/7 high-speed running) with an expected lifetime exceeding 20 years. They are practically maintenance-free.
Can these generators operate in harsh environmental conditions?
Yes. Featuring an IP54 protection rating and class H insulation, these generators are built to withstand high temperatures (magnet level max 120°C and winding level max 180°C) and can be used in almost all climates.

Related Products