... of designing and manufacturing of workover/drilling rigs, SJ has developed truck-mounted drilling rigs with drilling depth of 3,280' (1000m), ... from 253000lbs (1125kN) to 505800lbs (2250kN). The truck- mounted drilling rigs feature heavy working load, reliable performance, good ... , desert and plateau.Characteristics for series of truck-mounted drilling rigs: Power system is fitted with engine and ...