XJ250 40T self-propeller Workover Rig is a special facility for oil field. Design rated hook load is 400Kn(88185lbs), The Max. hook load is 700Kn(150000lbs), Servicing depth is 3200m(10667ft) (φ2 7/8″EUE tubing ), Carrier driving type: 8X4，Strong frame is made of wing span sectional material.