A 4020 24V Part Cooling Fan is a compact blower fan commonly used in 3D printers to provide targeted cooling to the printed material, enhancing print quality and detail. The "4020" designation refers to the fan's dimensions: 40mm in length and width, and 20mm in thickness.

Key Specifications:

• Dimensions: 40mm x 40mm x 20mm​

• Operating Voltage: 24V DC​

• Current Draw: Typically around 0.1A​

• Airflow: Approximately 3.67 to 6.68 CFM, depending on the model​

• Noise Level: Ranging from 23 to 36 dBA​

• Bearing Types: Options include dual ball bearings, hydraulic bearings, and sleeve bearings​

• Connector Type: Commonly equipped with a 2-pin JST plug​

Features:

• Efficient Cooling: Delivers focused airflow to rapidly solidify extruded filament, reducing defects such as stringing or sagging.​

• Durable Bearings: Dual ball bearings offer longer lifespan and can operate continuously, while hydraulic bearings provide a balance between performance and noise levels.​

• Low Noise Operation: Designed to maintain effective cooling with minimal acoustic disturbance.​

Installation Considerations:

• Compatibility: Ensure the fan's voltage and connector type match your printer's specifications. Some printers, like certain Creality models, may require pin reversal for proper operation.​

• Mounting: Verify that the fan's dimensions align with your printer's mounting points to facilitate secure installation.​

• Wiring: Pay attention to wire length and connector type to ensure seamless integration without the need for modifications.