Product descriptions from the supplier
Long blower fan 25mm 300mm cross flow 3300rpm impeller aluminum cross flow fans
| DC cross flow fan product overview | ||
| texture of material | Wind wheel — aluminum; shell — cold rolled sheet (electrophoresis) | |
| Fan rotation direction | From the direction of the fan blade, it is anticlockwise | |
| insulation resistance | More than 500 megohm | |
| Operating ambient temperature | -40℃~70℃ | |
| life | S (oil bearing) 40000 hours, B (ball bearing) 60000 hours | |
| The company can make the following special function fans according to customers’ requirements: | ||
| 1.PWM speed regulation | 2.TC temperature control, RD alarm | 3.FG |
| 4.Soft start | 5. IC protection, with locked rotor, automatic restart |
6.waterproof |
1 What are kinds of cooling fan or centrigugal fan supplied by your company?
Answer: we can provide DC cooling fan, AC cooling fan, EC cooling fan and blower fan.
2 What are kinds of information provided by the customer before inquiry?
Answer : please kindly advise the size, voltage, the type of bearing, the speed of fan , or air flow.
3 How many types bearing of our cooling fan are there in our compnay at present?
Answer : now we have two types bearing for the fan, sleeve and ball, working time of sleeve is for 30,000 hours, the ball is for 50,000 hours.
4 How to detect the data of cooing fan in your company?
Answer: the speed and voltage are detected by the tachometer, air flow is found by wind tunnel.
5 How to control the quanlity of products in your company.
Answer: 100% total testing before each of fan leaves our factory.
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