500W 200RPM Low RPM Coreless Alternator is a high-efficiency, gearless generator designed specifically for vertical axis and low-speed horizontal axis wind turbines. Using advanced “Precise Coil” patent technology, it delivers ultra-low starting torque, high reliability, and excellent energy conversion efficiency — making it ideal for renewable power applications where smooth startup and durability are essential.

Features:

• Torque Patent Technology: Utilizes advanced Precise Coil design to eliminate cogging and gear notches, achieving an exceptionally low starting torque (<1 N·m) for easy startup in low wind conditions.

• Coreless Disc Structure: Innovative coreless stator design replaces traditional iron-core windings, reducing weight, eliminating magnetic drag, and improving efficiency.

• Gearless, Direct-Drive Design: No gearbox required — ensures silent, smooth operation with minimal mechanical loss and maintenance.

• High Energy Utilization: Engineered for low-speed wind energy capture, ensuring optimal performance even under low wind speeds typical of vertical-axis turbines.

• Durable and Long-Lasting: Delivers up to 8× longer lifespan than traditional core-type generators thanks to its frictionless design and superior materials.

• High Reliability and Efficiency: With >85% conversion efficiency and precision construction, it ensures consistent energy generation with minimal power loss.

• Superior Heat Dissipation: Features an aluminum alloy outer shell and optimized internal airflow structure for excellent thermal management in all environments.

• Harsh Environment Ready: Built with high-grade rare-earth permanent magnets and corrosion-resistant materials for outdoor and marine wind turbine installations.

Specifications:

Advantages:

• Starts easily at very low wind speeds (<1 m/s)

• No cogging or gear resistance — ideal for VAWT systems

• Compact and lightweight for its power rating

• Maintenance-free and long operational lifespan

• Stable output suitable for battery charging or grid-tie systems

• High torque density and excellent power-to-weight ratio

Applications:

• Vertical Axis Wind Turbines (VAWT)

• Horizontal Axis Wind Turbines (small-scale)

• Marine and Off-grid Renewable Systems

• Low-speed hydroelectric or human-powered generators

• Educational and Research Wind Energy Projects