Product Description
LD Customized DC7015Cooling Fan ,with its compact size of 70×70×15mm, is an ideal choice for cooling space-constrained devices. Its design focuses on balancing the four key elements of space, performance, noise, and reliability, utilizing advanced bearing technology, optimized fan blades based on fluid dynamics, and intelligent control functions to meet a wide range of needs from consumer electronics to industrial automation.
Size:70*70*15mm;
Voltage:5V/12V/24V;
Bearing:Ball Bearing/Sleeve Bearing/Hydraulic Bearing;
Materials:PBT;
Speed:2500~4500RPM;
CFM:17~32CFM;
Noise:27~32db;
LDDC7015 accepts the following customizations ：
Fan Frame and Blade Material
Fan Label
Fan wiring harness, cable length, terminals
Speed/Airflow
LDDC7015 Design Parameters
Motor Protection: RP/SS/AS/CL
Signal Output:FG/RD/LD
Speed Contorl Method：PWM/TP/VC/RC/CS
LDDC7015 Design Application Product Types:
1. Electronic and Computer Equipment
Computer Case, Graphics Card, Motherboard North Bridge Cooling
Servers, storage devices, network switches, routers
Industrial computers (IPC), embedded systems, single-board computers (SBC)
2. Industrial Automation and Power Equipment
Inverter, PLC controller, servo drive
Switching power supply, UPS uninterruptible power supply, charging station module
Industrial sensors, instruments, and testing equipment
3. Communications and Consumer Electronics
5G base station equipment, optical communication modules, satellite receivers
Projector, Set-top Box, Audio Amplifier, LED Display Screen
3D Printer, Smart Home Control Center
4. Medical and Special Equipment
Medical imaging equipment, analyzers, monitors
Automotive Electronics, Car Chargers, ADAS Systems
Drones, robots, photovoltaic inverters
How to Choose Different Bearings for Cooling Fans:
Sleeve Bearings: These are sleeve bearings that use sliding friction and rely on lubricating oil as a lubricant and friction reducer. Low operating noise and low cost during initial use. The lifespan of ordinary oil-impregnated bearings is typically between 5,000 and 6,000 hours.
Hydraulic Bearing: The hydraulic bearing is an improvement on the oil-impregnated bearing, featuring a larger oil storage space and a unique loop-back oil supply circuit. This type of bearing inherits the advantages of oil-impregnated bearings and has a longer lifespan than oil-impregnated bearings, with an average lifespan of up to 40,000 hours.
Ball bearings: They change the way bearings operate by using rolling friction, which more effectively reduces friction between the bearing surfaces and significantly extends the lifespan of fan bearings. Ball bearings are divided into single ball bearings and double ball bearings:
Single Ball Bearing : Combines sliding friction and rolling friction, with a service life of up to 40,000 hours, but the operating noise will increase.
Double Ball Bearings: These are relatively high-quality bearings with an extremely long lifespan, approximately 50,000-100,000 hours. They are suitable for fans with higher rotational speeds, but the manufacturing cost is high and they tend to produce more noise.
How to Apply for Free Fan Samples?
- For our SVIP customers: All standard in-stock fan models: eligible for 5 free samples per year. Selected parameter-customized products: eligible for 1 free sample per year. Made-to-order products: not eligible for free samples.
- For our VIP customers: All standard in-stock fan models: eligible for 2 free samples per year. Selected parameter-customized products: eligible for 1 free sample per year. Made-to-order products: not eligible for free samples.
- For first-time buyers of our fans: All standard in-stock fan models: eligible for 1 free sample (one-time). Selected parameter-customized products: eligible for 1 free sample (one-time). Made-to-order products: not eligible for free samples.
Shipping Terms for Free Fan Samples
- If you request a sample with a formal order: Samples < 1 kg: free shipping. Samples > 1 kg: eligible for discounted shipping.
- For VIP/SVIP customers with a delivery address in China: Samples < 1 kg: enjoy 3 free shipping opportunities per year. Samples > 1 kg: eligible for discounted shipping.
- For overseas delivery addresses: Shipping cost is charged based on actual freight. To avoid damage, loss or other transit problems, we do not accept pickup by FedEx, UPS or DHL.
