Knapsack shock absorbers sometimes have an internal floating piston for separating oil and gas. But more commonly, a rubber air-cooled storage tank that holds the gas separately. This air-free tank is less prone to air leakage than the sealing of the separation piston.
Polyurethane Bump stop is a kind of plastic products with high elasticity and toughness, which is installed in the screw spring of the automobile suspension system, which can effectively solve the problem of soft spring, improve the height of the body, and mainly play the role of cushioning and damping to protect the shock absorber.
The Strut Dust Bellow is a layer of bellows with telescopic capacity that is placed outside the piston rod of the shock absorber. Its role is to protect the vibrator piston rod that is constantly moving up and down. Prevent the piston rod from being corroded by rain or road water. And protect the piston rod seal ring and other parts from being damaged by impurities such as sand and stone.
