+86 15166057722
0102030405
High Efficiency Coreless Permanent Magnet Generator 0.5kW-10kW for Vertical Axis Wind Turbines - China Suppliers & Factory
Key Advantages
Ultra-Low Starting Torque
Eliminates hysteresis and gear notch effects, achieving starting torque < 0.1 N·m for effortless operation.
High Efficiency
Coreless design minimizes mechanical resistance, reducing energy loss during conversion.
Precise Coil Technology
Optimized electromagnetic performance ensures stable power generation across all RPM ranges.
Advanced Magnetic Design
Rare-earth permanent magnets with multi-pole configuration provide high power density and output.
Maintenance-Free Operation
Gearless direct-drive and brushless design eliminate wear-prone components for long-term reliability.
Enhanced Durability
Compact structure delivers superior power-to-volume/weight ratios with 8× longer lifespan vs. traditional generators.
Low-Wind Optimization
Maximizes energy utilization in wind speeds as low as 3 m/s, extending operational range.
Thermal Efficiency
Aluminum alloy casing and internal heat dissipation design ensure stable performance under load.
This generator is ideal for renewable energy applications requiring high efficiency, low maintenance, and reliable performance in varying conditions.
Product Features
| No. | Feature Details |
|---|---|
| 1 | Torque Patent Technology: use newest “Precise Coil” technology. No hysteresis and gear notches effect make the start torque very low <0.3N.M |
| 2 | Original Structure: use disc coreless motor to take place traditional motor makes it less volume and weight. |
| 3 | Higher Utilization: use special coreless motor technology to eliminate the use bottlenecks of lower speed wind energy. |
| 4 | Higher Reliability: special structure make it bigger ratio of power to volume, power to weight and have long life of 8 times longer than traditional motor. |
| 5 | Gearless, direct drive, low RPM generator. |
| 6 | High standard, quality components for use in harsh and extreme environments for wind turbines |
| 7 | High efficiency and Low mechanical resistance energy loss |
| 8 | Excellent heat dissipation due to the Aluminum alloy outer frame and special internal structure. |
| 9 | Customized : Voltage, Speed, Power, Frequency etc. |
| 10 | H class insulation, vacuum pressure impregnation. |
| 11 | Excellent heat dissipation , also can add fan cooling |
Specification
| Model | GDG-0.5KW-200 | GDG-1KW-180 | GDG-1KW-200 | GDG-2KW-120 | GDG-2KW-180 |
|---|---|---|---|---|---|
| Rated Power | 0.5KW | 1KW | 1KW | 2KW | 2KW |
| Rated Rotate Speed | 200 RPM | 180RPM | 200RPM | 120RPM | 180RPM |
| Rated Voltage | 56Vac | 56Vac | 56Vac | 115Vac | 115Vac |
| Rated Current | 9A | 12A | 17.9A | 10A | 17.4A |
| Efficiency | >85% | ||||
| Wending Method | Y | ||||
| Insulating Resistance | 100Mohm Min(500V DC) | ||||
| Leakage Level | <5 ma | ||||
| Start Torque | <0.1N/M | <0.3 N/M | <0.5 N/M | <0.3 N/M | |
| Phase Type | 3 Phase | ||||
| Structure | Out rotor | ||||
| Stator | Coreless wire coil | ||||
| Rotor | Rare Earth Permanent Magnet | ||||
| Generator Shell Diameter | 320 | 380 | 550 | 450 | |
| Generator Shell Length | 232 | 241 | 241 | 330 | 258 |
| Weight | 20 | 32 | 32 | 75 | 51 |
| Shaft drameter | 45 | 50 | 50 | 78 | 59 |
| Generator shell material | Aluminum alloy | ||||
| Shaft material | Carbon steel | ||||
| Bearing | Deep groove ball bearing | ||||
| Model | GDG-3KW-100 | GDG-3KW-180 | GDG-5KW-100 | GDG-5KW-150 | GDG-10KW-100 |
|---|---|---|---|---|---|
| Rated Power | 3KW | 3KW | 5KW | 6KW | 10KW |
| Rated Rotate Speed | 100RPM | 180RPM | 100RPM | 150RPM | 100RPM |
| Rated Voltage | 380VAC | 380VAC | 380VAC | 380VAC | 400VAC |
| Rated Current | 4.6A | 4.7A | 7.6A | 15.2A | 14.5A |
| Efficiency | >85% | ||||
| Wending Method | Y | ||||
| Insulating Resistance | 100Mohm Min(500V DC) | ||||
| Leakage Level | <5 ma | ||||
| Start Torque | <1 N/M | <0.5 N/M | <1 N/M | ||
| Phase Type | 3 Phase | ||||
| Structure | Out rotor | ||||
| Stator | Coreless wire coil | ||||
| Rotor | Rare Earth Permanent Magnet | ||||
| Generator Shell Diameter | 620 | 550 | 700 | 620 | 770 |
| Generator Shell Length | 410 | 330 | 400 | 410 | 590 |
| Weight | 110 | 65 | 125 | 110 | 245 |
| Shaft drameter | 80 | 78 | 98 | 80 | 85 |
| Generator shell material | Aluminum alloy | ||||
| Shaft material | Carbon steel | ||||
| Bearing | Deep groove ball bearing | ||||
System Solution
Greef Technical Team can provide the complete ON-grid and Off-grid solution for the project which used our permanent magnet generator. All the equipments can be produced according to customer's specific requirements.
Product Display
Frequently Asked Questions
What is the advantage of a coreless permanent magnet generator?
The coreless design eliminates hysteresis and gear notch effects, resulting in an ultra-low starting torque (
What are the customization options available for these generators?
We can customize specific parameters according to your system requirements, including Rated Voltage, Rotate Speed, Output Power, Frequency, and dimensions.
How does the generator perform in extreme environments?
Constructed with a highly durable aluminum alloy outer frame, carbon steel shaft, and H-class insulation, the generator features excellent thermal dissipation and is built to operate reliably in harsh, wind-turbine-specific environments.
Does the generator require regular maintenance?
No, the generator utilizes a gearless direct-drive, brushless structure, which eliminates wear-prone mechanical components. This design ensures maintenance-free operation and extends the lifespan up to 8 times longer than traditional motors.
Can you provide a complete system solution for my project?
Yes, the Greef Technical Team provides complete customized ON-grid and Off-grid system solutions tailored to the specific requirements of projects utilizing our permanent magnet generators.
Get in touch
We're Ready To Assist You Anytime