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High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (
High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (
Specifications
Description
Inner Rotor Electric Motor 0.2 to 100 KW
Engineered for Higher Reliability Enhancing Performance in Industrial Settings
High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications
Product Overview
The GREEF NEW ENERGY GDG series disc-type permanent magnet generator features a unique spindle and rotor arranged in a disc shape configuration. The stator is fixed at the center while the rotor rotates on both sides, with the spindle containing only windings without an iron core.
Both stator and rotor are designed as flat disc structures utilizing an axial air gap magnetic flux mechanism, alternately positioned along the axial direction for a compact and efficient magnetic flux path.
The short axial length and large diameter support multi-pole design, resulting in high power-to-mass ratio, low-speed operation, low wind speed start capability, compact size, reduced energy consumption, lightweight build, and overall high efficiency.
Available in two main variants: outer rotor type (stationary shaft with rotating casing) and inner rotor type (fixed casing with rotating shaft).
Key Features
  • Low Start Torque Technology: Starting torque less than 0.1 N*m through elimination of hysteresis and gear notch effects
  • High Efficiency: No core reduces mechanical resistance and energy losses with "Precise Coil" technology
  • Advanced Magnet Design: Rare earth permanent magnets with multiple poles and small air gap for high power density
  • Gearless Direct Drive: Brushless mechanism requiring no maintenance with enhanced reliability
  • Higher Reliability & Longevity: Special structural design for greater power-to-volume and power-to-weight ratios, 8x longer lifespan
  • Optimized for Low Wind Speeds: Higher utilization in low wind speed conditions
  • Excellent Heat Dissipation: Aluminum alloy outer frame with engineered internal structure
Technical Specifications
Parameter Specification
Material Aluminum Alloy
Mounting Type Flange Or Foot Mounted
Generator Shell Material Aluminum Alloy
Power 0.2-100 KW (large output power)
Shaft Material Steel
Phase Type 3 Phase
Noise Level Low Noise Operation
Rotor Rare Earth Permanent Magnet (outer-rotor generator)
Structure Inner/Outer Rotor
Efficiency >92% (large output power)
Applications
  • Wind Power Generation: Enhanced output density for megawatt-class wind turbines with reduced iron-related and hysteresis losses
  • Renewable Energy: Solar and wind energy systems requiring efficient energy conversion and reliable operation
  • Industrial Applications: Backup or auxiliary power supplies for industrial machinery and equipment
  • Customized Applications: Tailored solutions for specific power, rotational speed, and output voltage requirements
Customization Services
Greef offers customization for the Coreless Permanent Magnet Generator (model GDG), a high-efficiency outer-rotor generator with efficiency greater than 92%.
Power Range: 0.2 to 100 KW
Mounting Options: Flange or Foot Mounted
Winding Method: Y
Shell Material: Aluminum Alloy
Delivery Time: 25 working days
Certification: CE Certified
Minimum order quantity: 1 set. Payment terms: T/T, Western Union, MoneyGram, L/C.
High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications
Packing & Shipping
Each unit is securely packaged in custom-fitted foam within double-walled cardboard boxes with moisture-resistant wrapping. Clear labeling and handling instructions ensure proper identification.
Shipping via trusted carriers with tracking options. Bulk orders utilize pallets with additional strapping and corner protectors for stability.
Upon receipt, inspect packaging for damage and report any issues immediately to our customer service team.
High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications
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High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (<0.03N/M) and Rare Earth Permanent Magnet for Industrial Applications

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High Efficiency (>92%) Coreless Permanent Magnet Generator with Low Start Torque (

Qingdao Greef New Energy Equipment Co., Ltd

Verified Supplier
2 Years
qingdao
Since 2014
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Permanent Magnet Alternator, Permanent Magnet Generator, Coreless Permanent Magnet Generator
Total Annual :
2.5 Million-5 Million
Employee Number :
70~100
Certification Level :
Verified Supplier
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