一台能轧制０．００１×４０ｍｍ极薄带材的新型３０辊可逆式冷轧机已研制成功。并已轧出了０．０００８×４０ｍｍ钛箔突破了原设计指标。就厚度指标而言，达到了世界先进水平。据查这类３０辊可逆式冷轧机机型为我国首创，填补了世界多辊轧机机型空白。介绍了国内外极薄带及其多辊轧机的发展概况；探讨了关于最小可轧厚度；辊系参数选择，受力分析以及介绍了本机的技术性能和力能参数。 A new 30-roll reversing cold rolling mill capable of rolling 0.001 x 40mm extremely thin strip has been successfully developed. And rolled out of 0.0008 × 40mm titanium foil broke through the original design specifications. In terms of thickness, it has reached the world advanced level. According to the investigation of such 30-roller reversing cold-rolling mill model for our initiative, to fill the world blanket mill type. The development of the extremely thin strip and its multi-roll mills at home and abroad are introduced. The minimum rolling thickness, the selection of roller system parameters, the analysis of the force and the technical and mechanical parameters of this machine are introduced.