The paper makes a detailed analysis on the primary features of ZZF intermediate frequencyrotor spinning frame as well as its operation practice in cotton mills and its yarn qualities.

• 本文较为详细地介绍了ZZF型中频转杯纺纱机的主要技术特征，并列举了该机在棉纺厂的生产运转情况及成纱质量水平；