Truck Driving Experience Innovator: GUOMAT Cab Air Spring, the Perfect Combination of Comfort and Efficiency

Truck Driving Experience Innovator: GUOMAT Cab Air Spring, the Perfect Combination of Comfort and Efficiency

Truck cab air spring is a key vibration reduction element installed between the truck cab and the chassis frame. It uses the elasticity and damping characteristics of compressed air. Its main function is to isolate vibration and impact from the road surface, greatly improve the driver's riding comfort, and protect the cab structure and internal equipment.

Core Functions and Advantages

Excellent vibration reduction and isolation: Compared with traditional leaf springs or rubber shock absorbers, air springs can more effectively absorb and attenuate vibrations of various frequencies (especially low-frequency vibrations) caused by uneven roads, significantly reducing the bumpy feeling transmitted to the cab.

Height adjustability: By adjusting the air pressure in the airbag, the ground clearance of the cab can be changed. This is useful for adapting to different load conditions, facilitating drivers to get on and off the vehicle, or matching the height of the trailer.

Low and constant natural frequency: The stiffness (elasticity) of the air spring will naturally increase with the increase of load, but its natural frequency (the key parameter that determines the vibration reduction effect) has a small range of variation and can maintain good comfort under different loads (such as no load, full load).

Extend life: Effectively protect the cab body, instrument panel, seats, various electronic equipment, etc. from severe impact and continuous vibration damage, reduce looseness and damage.

Reduce noise: Reduce rigid contact and friction noise between the cab and the frame.

Improve driving experience: Reduce driver fatigue and improve the safety and comfort of long-distance driving.

Working Principle

The airbag is filled with compressed air of a certain pressure (usually from the air system of the whole vehicle).

When the wheel encounters bumps and the impact force is transmitted to the air spring through the frame, the airbag is compressed and deformed, and the compressed air inside is further compressed to absorb the impact energy.

After the impact, the compressed air expands, pushing the airbag back to its original shape and releasing energy (part of the energy is converted into heat energy and consumed in the internal friction of the rubber molecules and the air flow).

This compression-expansion process effectively isolates and buffers vibration.

Common Problems and Maintenance

Leakage: This is the most common fault. The reasons include:

Aging and cracking of the airbag rubber, cuts (punctured by sharp objects, improper installation and friction).

Damage to the air nozzle seal.

Rust on the sealing surface of the upper/lower cover or aging and failure of the sealing ring.

Aging and cracking of the connecting air pipe or loose joints.

Abnormal noise: Dry friction between the contact surface of the airbag and the cover, aging and friction of the internal limit block, distortion and deformation of the airbag, loosening of the fixing bolts, etc. may all cause abnormal noise.

Abnormal height/tilt: Leakage of one-side airbag, failure of the height control valve (if any), blockage or folding of the air pipe, improper air pressure adjustment, etc.

Damage: Extreme overload, severe impact, aging and embrittlement, external mechanical damage lead to airbag rupture.

Aging failure of rubber pile: loss of elasticity or fragmentation.