The weight of drill pipe of Sany 235 rotary drilling rig is 81t. Sany heavy industry SR235-C 10 rotary drilling rig has a maximum drilling diameter of 22870mm and a maximum drilling depth of 68/54m. The matching diesel engine is ISU6UZ1diesel engine with rated power of 257KW and overall height of 257 kw. Therefore, the weight of drill pipe of Sany 235 rotary drilling rig is 81t.