Disc Coreless Permanent Magnet Generator (PMG220-1000W)

Our disc coreless PMG is designed for low rated speed, small volume, and high efficiency applications. With coreless, slotless construction and brushless operation, it ensures maintenance-free, reliable performance for vertical axis wind turbines, gasoline generators, and hydroelectric generators.

2. Characteristics

• Low rated speed and low starting wind speed — suitable for small wind or hydro applications.
• Compact and lightweight design — small volume, high efficiency, and low energy consumption.
• Coreless, anhysteresis, and slotless construction — provides very low starting torque.
• No iron loss — ensures high efficiency and low heat generation.
• Coreless precision winding technology — precise coil design for maximum performance.
• Rare earth multipole permanent magnets — high power density and high output power.
• Low-speed direct drive — smooth operation without torque fluctuations.
• Simple and compact structure — high ratio of power to volume, easy to install.
• Brushless design — maintenance-free operation.

3. Range of Application

• Vertical axis wind turbines
• Gasoline generators
• Hydroelectric generators

4. Shape Drawing

Technical Specifications

Model	PMG220-1000W
Rated Power	1000 W
Rated Speed	1000 RPM
Rated Voltage	48V
Rated Current	20 A
Rated Torque	9.5 NM
Efficiency	>95%
Resistance (Line-Line)	-
Winding Type	Y
Insulation Resistance	100 MΩ min (500V DC)
Leakage Level	<5 mA
Start Torque	<0.1 NM
Phase	Three phase
Structure	Inner Rotor
Stator	Coreless
Rotor	Permanent magnet type (Outer Rotor)
Generator Diameter	210 mm
Generator Length	114 mm
Weight	7.5 kg
Shaft Diameter	30 mm
Housing Material	Aluminum Alloy
Shaft Material	Steel

Power Curve