The author sums up the operation practice of several types of auto-levellers amounted onscutching lapper of the mill, of which frequency changing auto-leveller is mainly dealt with.

• 本文总结了本厂几年来在清棉成卷机上几种自调匀整装置的使用实践，着重分析探讨了变频自调匀整装置的使用性能，可供使用选型参考。