Shock absorbers vary significantly between different car models, depending on the vehicle type and intended use.

Monotube shock absorbers have a simple structure, a large piston area, and can effectively absorb large instantaneous pressures, while also having good heat dissipation. However, these shock absorbers also have some drawbacks, such as susceptibility to damage from external forces and limited stroke.

Twin-tube shock absorbers have relatively low manufacturing costs, which is conducive to mass production. Twin-tube shock absorbers have excellent damping performance and a long stroke, allowing for more varied drag. However, they have less damping oil storage, poorer heat dissipation, and a smaller piston diameter, making them prone to cavitation.

Nitrogen bypass shock absorbers have a long compression stroke, enabling variable damping and oil-gas separation. However, these shock absorbers have a complex structure, are difficult to modify, and have higher operating costs.

Electrically controlled shock absorbers offer the advantage of convenient damping adjustment, allowing for adjustment of damping force according to different conditions, thus achieving a better driving experience.

Magnetorheological fluid dampers improve wheel control, enhance safety and reliability, control vehicle movement, reduce occupant sway during braking and acceleration, improve load transfer characteristics, and reduce road reaction forces.

Slide valve dampers control damping force through a spring-loaded valve disc and precisely shaped ports.

In passenger cars, comfort sedans typically use soft springs and low-damping dampers to ensure a comfortable ride. Sporty sedans use stiff springs and high-damping dampers to ensure handling and responsive performance.

In SUVs and off-road vehicles, urban SUVs have more balanced damping tuning, while off-road vehicles typically use high-strength springs and adjustable-damping dampers to adapt to complex road conditions.

In commercial vehicles, trucks typically use multi-leaf spring or air spring damping systems, while buses choose dampers with good cushioning performance; the front and rear axles may use different damping designs.

One way to test the quality of dampers is to drive the vehicle on a rough road for 10km and then check the casing temperature. If the outer casing is not hot, it may indicate that there is no internal resistance or insufficient oil. If the vehicle bounces 2-3 times after pressing the bumper firmly and releasing it, it indicates that the shock absorber is working properly. If there is severe vibration during emergency braking while driving slowly, there may be a problem. After removing the shock absorber, pull the shock absorber rod upright. There should be stable resistance, and the resistance when pulling upwards should be greater than that when pressing downwards.