重庆升降机采用滚压加工，由于表面层留有表面残余压应力，有助于表面微小裂纹的封闭，阻碍侵蚀作用的扩展。从而提高表面抗腐蚀能力，并能延缓疲劳裂纹的产生或扩大，因而提高缸筒疲劳强度。通过滚压成型，滚压表面形成一层冷作硬化层，减少了磨削副接触表面的弹性和塑性变形，从而提高了升降平台缸筒内壁的耐磨性，同时避免了因磨削引起的烧伤。滚压后，表面粗糙度值的减小，可提高配合性质。
Ningbo lifting platform rolling process, the surface layer leaving the surface residual compressive stress, contribute to closing surface microcracks, impede erosion expansion. Thereby increasing the surface corrosion resistance, and can delay fatigue cracks or expanded, thus increasing the fatigue strength of the cylinder. By roll forming, rolling surface layer of cold hardening layer, reducing the elastic and plastic deformation of the contact surface grinding vice, thus improving the Ningbo lifting platform cylinder wall wear, while avoiding the grinding cause burns. After rolling, reducing the surface roughness can increase with nature.

滚压后，孔表面粗糙度由幢滚前Ra3.2～6.3um减小为Ra0.4～0.8&um，孔的表面硬度提高约30%，缸筒内表面疲劳强度提高25%。油缸使用寿命若只考虑缸筒影响，提高2～3倍，宁波升降平台镗削滚压工艺较磨削工艺效率提高3倍左右。以上数据说明，滚压工艺是高效的，能大大提高缸筒的表面质量。宁波升降平台油缸经过滚压后，表面没有锋利的微小刃口，长时间的运动摩擦也不会损伤密封圈或密封件，这点在液压行业特别重要。
Ningbo lifting platform after rolling, the surface roughness of the hole before rolling Ra3.2 ~ 6.3um buildings reduced to Ra0.4 ~ 0.8 & surface hardness um, well increase by about 30%, the cylinder surface fatigue strength increased by 25%. Cylinder life if only to consider the impact of the cylinder barrel, increased by 2 to 3 times, Ningbo lifting platform rolling process is relatively boring grinding process efficiency increased by 3 times. The above data shows that the rolling process is efficient and can greatly improve the surface quality of the cylinder barrel. Ningbo lifting platform cylinder After rolling, the surface is not small sharp edge, prolonged friction movement will not damage seals or seal, which is particularly important in the hydraulic industry.