​A 4020 12V Heatsink Cooling Fan is a compact, high-speed fan designed to provide efficient cooling for electronic components such as 3D printer hotends, extruders, and control boxes. The "4020" designation refers to its dimensions: 40mm in length and width, and 20mm in thickness.​

Key Features:

• Dimensions: 40mm x 40mm x 20mm, suitable for installations where space is limited.​

• Voltage: Operates at 12V DC, compatible with many 3D printers and electronic devices.​

• Bearing Types: Available with different bearings, including:​

  • Sleeve Bearings: Cost-effective with a typical lifespan of approximately 30,000 hours.​

  • Hydraulic Bearings: Enhanced performance and lifespan of around 35,000 hours.​

  • Dual Ball Bearings: High-quality, low noise, capable of continuous operation with a lifespan up to 50,000 hours.​

• Performance: Depending on the model, these fans can achieve speeds up to 6,000 RPM, delivering airflow suitable for effective cooling.​

• Connectors: Typically equipped with 2-pin power connectors for straightforward installation.​

Applications:

• 3D Printers: Ideal for cooling hotends, extruders, and control boxes to maintain optimal printing conditions.​

• Electronics: Suitable for dissipating heat in various electronic devices and DIY projects requiring compact cooling solutions.