Do you have detailed product specifications ?

• Specifications:
  • Frame and impeller: thermal plastic UL 94V-0
  • Lead wire: UL
  • Type: red (+), black (-)
  • Insulation resistance: 10MΩ or over with 250V DC megger
  • Dielectric withstand voltage: 500V AC, 1 second
  • Operating temperature: -10 to 70°C
  • Storage temperature: -40 to 70°C
  • Lifespan expectancy: 50,000 hours at 20°C, 2 balls, 30,000 hours at 20°C, sleeves
  • Certificates: UL, CE
  • RoHS Directive-compliant
  • Protection: locked rotor protected for minimum 72 hours

Model	Bearing Type	Rated Voltage	Operation Voltage	Current	Speed	Air Flow	Static Pressure	Noise Level	Weight
		VDC	VDC	A	RPM	CFM	mmH20	dBA	g
DFH4510S	Sleeve	5	4.5~5.5	0.20	6000	7.22	3.38	31.9	15
DFM4510S				0.16	5000	5.83	2.42	27.3
DFL4510S				0.12	4000	4.50	1.57	22.1
DFH4510B	Ball			0.20	6000	7.22	3.38	31.9
DFM4510B				0.16	5000	5.83	2.42	27.3
DFL4510B				0.12	4000	4.50	1.57	22.1
DFH4510S	Sleeve	12	10.8~13.2	0.15	6000	7.22	3.38	31.9
DFM4510S				0.10	5000	5.83	2.42	27.3
DFL4510S				0.08	4000	4.50	1.57	22.1
DFH4510B	Ball			0.15	6000	7.22	3.38	31.9
DFM4510B				0.10	5000	5.83	2.42	27.3
DFL4510B				0.08	4000	4.50	1.57	22.1

What is your factory like ?








Can quality be guaranteed ?

We strictly obey ISO-9001 and ISO-14001 which ensure our quality guarantee to customers. Besides, our fans are acquired safety certification of CE, TUV and UL. Meanwhile all fans meet RoHS standard. And we always adhere to the principle of "Customer foremost, Quality first, People-oriented" and focus on the partnership and joint interests of customers with the view of joint development and progress.



What about the packaging and sales capability ?





Has your company ever attended an exhibition ?

We attended many exhibitions and tradeshows at home and abroad---HKTDC Hong Kong Electronics Fair (Spring Fair) / (Autumn Fair), Brazil SP Electronics Show (2018) and Germany Munich Electronics 2018.
We entertained customers and visitors to our factory from domestic and abroad in the past years.
Warmly welcome the friends both China and abroad to visit our factory and have a cooperation.



What brands has your company cooperative with ?



FAQ

Q: How many workers do you have and how many production lines do you own ?
A: We have 207 workers in normal time, we employ more workers in peak season, about 250 workers.  
We own 7 production lines.
 
Q: What's bearing type do you have and what is their lifetime difference?
A: We have sleeve bearing, hydraulic sleeve bearing and dual ball bearing. If sleeve fan, the lifetime is 25000hours, if hydraulic sleeve bearing, the lifetime is 30000hours, if ball bearing, the lifetime is 50000hours.
 
Q: Can you customize required fan or blower?
A: Of course, we have a professional engineering team which can design and develop new fans or blowers according to customer's requirements.
 
Q: Can my order ship via UPS or DHL or FedEx or by Air or By Sea? And where is my order ship ?
A: Yes, we can ship. All orders ship from our factory warehouse.
 
Q: What is your MOQ and lead time ?
A: Our MOQ is 1K. Lead time depends on the order's quantity, below 50K, the lead time is 15 working days; if over 50K, the lead time is 20 working days.

If you have any question about our product contact me anytime .



TEL:(+0086)769 82937810 ext 856

MOBILE:(+0086)13612723276

FAX:(+0086)769 8366 0718 

 

Website:d-fans.en.made-in-china.com