Jinqu specializes in producing mufflers, SCR exhaust gas aftertreatment systems, and air reservoirs

The functions, uses, and applications of the Hanwei 404L-7-hole aluminum alloy air tank are as follows:
- Energy storage : Stores the gas compressed by the air compressor, providing a stable air supply for the vehicle's braking system, air suspension system, horn system, and more, ensuring these systems function properly.
- Voltage regulation : Balancing the intermittent supply and demand of air in the compressor room ensures that unstable compressed air, after being stored in the receiver tank, flows out as stabilized gas, preventing sudden pressure fluctuations that could affect braking performance and other critical functions.
- Filtering : Impurities such as dust, water molecules, and motor oil in the air briefly linger inside the air receiver tank, where their heavier weight causes them to settle at the bottom, effectively filtering out contaminants and protecting the pipelines and valve components from corrosion.
- Cooling down : Helps reduce the temperature of compressed air, increasing air density and allowing for greater storage volume, while also promoting moisture condensation.
- Braking System : It provides the necessary air pressure for the truck's braking system. When the driver presses the brake pedal, high-pressure air from the air reservoir is delivered through pipes to the individual wheel cylinders, activating the braking mechanism.
- Air Suspension System On some vehicles equipped with air suspension systems, the compressed air stored in the air reservoir is used to adjust the height and stiffness of the suspension, accommodating varying road conditions and load requirements.
- Other auxiliary systems: Provides an air source for the vehicle's horn system, enabling the vehicle to emit audible signals; it can also supply compressed air to systems like the clutch assist system, reducing the driver's operational effort.