Place of Origin:Zhejiang, China Certification: ce, RoHS Warranty: 1 Year After-sales Service Provided: Online support Life time(MTTF): >20,000 hours (under 25 degree C) Weight: 430 grams Housing material:PC Size:D87mm*H78mm Motor type:Three Phase DC Brushless Motor Static pressure: 10.5kPaBrand name: Wonsmart High pressure with dc brushless motor Blower type: Centrifugal fan Voltage: 24 vdc Bearing: NMB ball bearing Type: Centrifugal Fan Applicable Industries: Manufacturing Plant Electric Current Type: DC Blade Material: plastic Mounting: Ceiling FanWS10690-24-240-S250 blower can reach maximum 78m3/h airflow at 0 kpa pressure and maximum 10.5kpa static pressure.It has maximum output air power when this blower run at 4.5kPa resistance if we set 100% PWM, It has maximum efficiency when this blower run at 4.5kPa resistance if we set 100% PWM.Other load point performance refer to below P-Q curve:(1) WS10690-24-240-S250 blower is with brushless motors and NMB ball bearings inside which indicates very long life time; MTTF of this blower can reach more than 15,000hours at 20degree C environmental temperature (2) This blower needs no maintence (3) This blower drived by a brushless motor controller have many different control functions such as speed regulation,speed pulse output,fast acceleration, brake etc.it can be controlled by intelligent machine and equipment easily. (4) Drived by brushless motor driver the blower will have over current, under/over voltage,stall protections.This blower can be widely used onto coffe bean roaster,vacuum machine, and ventilation.Q: How to decrease the noise of the blower? A: Many of our customers use foam, silicone to fill between blower fan and machine to insulate the blower noise. Q: What we can do if the working condition is dirty? A: A filter is strongly recommended to assemble onto the the inlet of the blower fanBrushless motors have become a popular motor choice for model aircraft including helicopters and drones. Their favorable power-to-weight ratios and wide range of available sizes, from under 5 grams to large motors rated at well into the kilowatt output range, have revolutionized the market for electric-powered model flight, displacing virtually all brushed electric motors, except for low powered inexpensive often toy grade aircraft. They have also encouraged growth of simple, lightweight electric model aircraft, rather than the previous internal combustion engines powering larger and heavier models. The increased power-to-weight ratio of modern batteries and brushless motors allows models to ascend vertically, rather than climb gradually. The low noise and lack of mass compared to small glow fuel internal combustion engines is another reason for their popularity. Legal restrictions for the use of combustion engine driven model aircraft in some countries, most often due to potential for noise pollution—even with purpose-designed mufflers for almost all model engines being available over the most recent decades—have also supported the shift to high-power electric systems.