Permanent Magnet DC Generator 550W, multivoltage, compact design Product overview This permanent magnet DC generator delivers 550W output at 3000 rpm and is available for use with 36V, 48V, 60V, 72V, or 220V systems. It uses pure copper coils for lower resistance and improved conductivity, which helps reduce heat buildup and supports stable operation. The unit is compact and designed for beltdriven or shaftcoupled applications. Key benefits Reliable electrical output for small power systems: 550W continuous power at 3000 rpm across multiple voltage options for flexible system design. Efficient copperwound construction: pure copper coils lower resistance and heat generation, supporting longer motor life and consistent conversion. Compact, machineready form factor: defined shaft and mounting dimensions simplify mechanical integration and pulley coupling. Ready for belt drive or direct coupling: 68 mm pulley diameter and standard 10 mm shaft diameter make it easy to connect to common mechanical drives. Specifications Color: 220v 550w Power: 550W Voltage options: 36V, 48V, 60V, 72V, 220V Speed: 3000 rpm Excitation mode: permanent magnet generator Effective conversion efficiency: 70 percent Body dimensions: diameter 78 mm, length 110 mm Shaft: diameter 10 mm, length 25 mm Pulley diameter: 68 mm What makes this generator stand out Pure copper coils for improved conductivity and lower operating temperature compared to higher resistance windings. Permanent magnet excitation for a compact design without the need for external excitation hardware. Standardized shaft and pulley sizes for straightforward integration into existing mechanical systems. Typical applications Small wind turbine or microhydro projects where a compact, permanent magnet generator is needed to convert mechanical rotation into DC power. Electric vehicle or ebike conversions that require a 550W generator matched to 36V through 72V systems, or 220V for specific applications. Workshops and DIY power generation where a beltdriven or shaftcoupled generator can supply charging, battery charging, or lowpower equipment needs. Installation and compatibility notes Check the chosen voltage option to ensure compatibility with your controller, inverter, or battery system. Shaft coupling and pulley alignment should match the shaft diameter 10 mm and shaft length 25 mm; the pulley diameter is 68 mm. Mounting must accommodate the body diameter 78 mm and length 110 mm when planning enclosures or brackets. Package contents 1 Permanent Magnet DC Generator This description reflects the product specifications and features as provided.