... 2250kN 3.XJ250, XJ350, XJ450, XJ550, XJ650, XJ1000,and XJ1200 series of workover rigs with maximum static load ranging from 300 to ... carrier, therefore it is easy for installation and movement. These rigs are suitable for workover operation for wells ranging from 1000 m ... with a rotary table.A self-propelled workover rig is mainly composed of chassis, power and driving system, drawworks system, mast, ...