... (20),7.5(25),9(30),10.5(35),12(40)m (ft) Stand load rating:1150,1600,2200,2880kN Design Features ... /9-XDDZ450/10.5-SDZ585/12-SHeight of drill floor, m (ft)6(20)7.5(25)7.5(25)9 ... (30)9(30)10.5(35)12(40)Clear height of drill floor, m(ft)4.77(15.65)6.26 ... beam load rating ,kN2250315031503150450045005850Stand load rating ,kN1150115016001600220022002880Bottom span of mast ,m(ft)8(26.3)8(26.3)9(30)8 ...