DC4056G 40×40×56mm Ultra-Pressure DC Fan
A deep 40mm DC fan built for extreme pressure output, high-speed airflow, and forced cooling through highly restricted paths.
DC4056G is positioned for applications where ordinary compact fans cannot overcome airflow resistance, such as dense channels, filters, or ducted thermal structures.
Rated Voltage: 12VDC
Size: 40×40×56mm
Max Airflow: 43.7CFM / 1.238m³/min
Max Static Pressure: 161.38mmH₂O / 1582.8Pa
Rated Speed: Up to 25500RPM
Key Specifications of DC4056G DC Fan
Compare DC4056G models by speed, current, airflow, pressure, and noise to select a high-pressure DC fan for demanding forced-air paths.
| Model | Bearing Type | Rate Voltage（VDC） | Current （A） | Speed （RPM） | Air Flow （CFM） | Static Pressure （mmH₂O） | Noise Level （dBA） | Weight （g） |
|---|---|---|---|---|---|---|---|---|
| YDS4056X12G | B | 12 | 2.12 | 25500/24000 | 43.70 | 161.38 | 71.85 | 95 |
| YDU4056X12G | B | 12 | 1.57 | 23000/21500 | 39.42 | 131.29 | 69.60 | 95 |
| YDD4056X12G | B | 12 | 1.16 | 20000/18500 | 34.28 | 99.27 | 66.60 | 95 |
| YDH4056X12G | B | 12 | 0.85 | 18000/16500 | 31.12 | 81.84 | 64.27 | 95 |
| YDM4056X12G | B | 12 | 0.63 | 15000/13500 | 25.32 | 54.19 | 58.90 | 95 |
| YDL4056X12G | B | 12 | 0.47 | 13000/11500 | 21.71 | 40.20 | 55.30 | 95 |
DC4056G Ultra-Pressure Cooling Fan Advantages
DC4056G focuses on pressure-driven airflow, using a 56mm deep frame and ball bearing structure to push air through very high-resistance cooling paths.
56mm Deep Frame for Pressure Build-Up
The 40×40×56mm body gives DC4056G far more air-channel depth than standard 40mm fans, helping build very high static pressure.
Up to 161.38mmH₂O Static Pressure
With up to 161.38mmH₂O pressure, DC4056G is designed for cooling paths where air must be forced through severe resistance.
43.7CFM High-Speed Airflow
The fan combines pressure with up to 43.7CFM airflow, making it suitable when both air volume and penetration force are required.
Ball Bearing for Extreme-Speed Duty
The ball bearing design supports high-speed operation and helps DC4056G maintain mechanical stability under heavy cooling demand.
YCCFAN DC4056G Product Overview
Understand how DC4056G uses a 56mm deep frame, ball bearing structure, and ultra-high pressure output for forced-air thermal designs.
DC4056G is not a general-purpose small cooling fan. Its 40×40×56mm structure is designed for pressure-demanding systems where air must pass through long ducts, dense fins, filters, or blocked internal routes.
With high-speed models up to 25500RPM, ball bearing operation, PBT UL94V-0 materials, and optional fan control/protection functions, DC4056G is suitable for demanding OEM cooling designs that prioritize pressure capability.
DC4056G Airflow & Static Pressure Performance Curve
Use the DC4056G P-Q curve to evaluate airflow delivery under extreme resistance and identify the speed level needed for pressure-heavy cooling paths.
DC4056G Applications for Extreme Pressure Cooling
Designed for compact equipment where airflow resistance is too high for normal 40mm fans or open-air cooling designs.
Get Cooling Support
Ducted Airflow and Long Channels
DC4056G can push air through defined ducts, narrow passages, and long airflow routes where pressure loss is high.
Dense Heat Sink Cooling
The ultra-high static pressure helps drive air through dense fins and compact heat sink structures that block ordinary airflow.
Filter and Dust-Proof Structures
For devices with filters, dust screens, or protective mesh, DC4056G can maintain airflow after resistance is added.
Compact High-Power Electronics
It is suitable for power-dense electronics where heat is concentrated and air must be forced through limited internal space.
Server, Telecom, and Industrial Modules
The pressure-focused design can support server modules, telecom devices, and industrial systems with dense layouts and restricted vents.
DC 40×40×56mm Ultra-Pressure Fan Video Showcase
Watch DC4056G in operation to see its deep-frame structure, high-speed rotation, and pressure-focused airflow performance.
Watch DC4056G in operation to see its deep-frame structure, high-speed rotation, and pressure-focused airflow performance.
FAQs About DC4056G DC Fan
A: Choose DC4056G when airflow must pass through severe resistance such as ducts, dense fins, filters, or closed internal structures. Standard 40mm fans may not create enough pressure for these paths.
A: The 56mm depth gives the fan more room to build pressure, helping it force air through restricted channels instead of only moving air in open space.
A: Yes. Its high static pressure makes it suitable for filtered or protected airflow paths where additional resistance reduces normal fan performance.
A: The listed DC4056G models use 12VDC input and include multiple speed/current options for different pressure and noise requirements.
A: Yes. FG, RD, PWM, auto restart, and polarity protection options can support control, feedback, and protection needs in customized systems.
A: It is mainly designed for pressure performance. For noise-sensitive designs, engineers should compare lower-speed models or consider lower-pressure alternatives.
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