The paper analyses performance of drives used by long-stroke pumps wit
h band traction units designed by PO Orenburgneft, VNllneft, VNllmetma
sh and Lidanengineering AB. The Lidanengineering drives have shown to
give better operating performance due to stepless control of plunger s
peed in both directions, display-based monitoring system, floorspace h
eating in winter periods, etc. Performance data for all such units is
listed.