3K Carbon Fibre Tube (Hollow) 30mm(OD) * 28mm(ID) * 500mm(L Culverts: A Comprehensive Guide for Civil Engineers Description: - Compact and lightweight: Compact structure, small size, light weight, easy to install and integrate into a variety of equipment - Stable and reliable installation: smooth installation, small vibration, reduce the possibility of failure, extend the service life - High reliability: materials and sophisticated manufacturing process improve the reliability and stability of the fan - Good high-speed performance: Extremely high speed is achieved to quickly generate strong air flow to meet the demand for high air volume and high pressure - The brushless design is energy efficient: The brushless motor reduces friction and loss between the brush and the commutator, improving energy conversion efficiency while reducing maintenance costsSpecification: - Material: PPSize Chart:4.5cmx2.9cm/1.77inchx1.14inchPackage Includes:1 Brushless Culvert FanNote:Please allow slightly errors 1-2cm differences due to manual measurement. Powered by an advanced brushless DC motor, the FC-250D air circulator draws only 1 amp while producing upwards to 1560 CFM to effectively cool and ventilate any... The brushless design is energy efficient: The brushless motor reduces friction and loss between the brush and the commutator, improving energy conversion efficiency while reducing maintenance costs Good high-speed performance: Extremely high speed is achieved to quickly generate strong air flow to meet the demand for high air volume and high pressure High reliability: materials and sophisticated manufacturing process improve the reliability and stability of the fan Dc Motor Fan MagiDeal Brushless Culvert Fan High Speed Motor Sturdy CNC Machined Brushless Fan