ventilation fan for sale

Description

Features:
PFrame: Digital-controlling model, high precise, reinforced thick galvanized layers in national criteria, results in gooderosion performance;
PHub: Aircraft grade Al-Mg alloy, high intensity and accuracy of die cast, good tenacity! 
PBlade: Exported grade **0 stainless steel, no deform、no break. The whole set is modified precisely after dynamic balance. Reasonable blade shape angle can provide high air volume and low noise under *5db.
PFence: Max thickness is up to 1.2mm, punching-formed with precise moulds, no ventilation、notransmittance, sealing performance is perfect. It is wind-water resistance and denies dust;
PSwitching device originated from Sweden: It is processed in the method of industrial nylon injection, good tenacity and intensity. Make sure that it can run highly efficiently and not driven by the motor;
PMotor: International standard E type of belt transmission,CCC、UI、CE can be customized. Protection level: IP*4, Isolation grade: F.
PBelt: Adapting JapaneseMITSUBOSHI 、AmericanGATES or ChineseSANLUX ；Maintenance free in the whole life;
JDHB company never use belt tensioner: it will decrease the service life of the belt, and results in belt twisting and high fault rate;
PExamination: Six strict procedures: noise test、vibration test、rotate performance test、blade revolving-speed test、air volume test and the whole set efficient test.
Function:
PVentilation: Installed at the windows or in the workshop, refresh the air in one minute.
PFor cooling down the temperature mated with cooling pad: Fan-cooling pad system can control the temperature down to *8℃in the room of ***0㎡，however the daily cost is less than￥*0yuan（In China, the price of electricity per grade is￥1yuan）.It is the best cooling method of saving investment and daily cost.