The hardness range of hydrogenated nitrile rubber rollers is usually between 50A and 90A. Specifically, hydrogenated nitrile rubber rollers with lower hardness (such as 50A-60A) are mainly used in situations requiring higher elasticity and better adaptability, while hydrogenated nitrile rubber rollers with higher hardness (such as 80A-90A) are suitable for environments with greater pressure and high temperature.

Hydrogenated nitrile rubber rollers are made of hydrogenated nitrile rubber (HNBR). Hydrogenated nitrile rubber is obtained by hydrogenating nitrile rubber, which greatly improves the rubber's heat resistance, ozone resistance and chemical corrosion resistance.