| Model | ZJ40/2250LDB |
| Drilling depth(4-1/2"drilling pipe) ft(m) | 13123.64(4000) |
| Drilling depth(5"drilling pipe) ft(m) | 10498.91(3200) |
| Max. hook load Ib(kN) | 505800(2250) |
| Max. hook lifting speed ft/s(m/s) | 0.75-4.92(0.23-1.5)(10 strands) |
| Line dia., in.(mm)/effective line quantity | Ø1-1/4(Ø32)/10 |
| Diesel engine power hp(kW)(1300r/min) | 810(605)x3 |
| Draw works power hp(kW) | 1000(735) |
| Mud pump power hp(kW)(2100r/min) | 960(716)x2 |
| Draw works shift | 4 forward 2 backward |
| Main drum line groove dia.xlength in.(mm) | Ø25.36x47.56(Ø644x1208) |
| Braking mode | hydraulic disc brake |
| Auxiliary brake(electromagnetic turbine brake) | DSF40 |
| Mast mode | vertical K type |
| Effective height of mast ft(m) | 141.08(43) |
| Max. mast static load Ib(kN) | 505800(2250) |
| Mast racking capacity ft(m)(5"drilling pipe) | 13123.64(4000) |
| Max. wind load, kn(km/h) | 59.35(110) |
| Substructure heighl/clearance height below beam ft(m) | 24.61x20.67(7.5/6.3) |
| Substructure area/setback capacity ft2ft(m2/m) | 31.82x35.43/13123.64(9.7x10.8/4000) |
| Rotary beam/setback box load Ib(kN) | 505800/359680(2250/1600) |
| Control/lighting/power system | 24V/220V/380V(China) |
| Rated pressure of air pressure system psi(MPa) | 114.4-143(0.8-1) |
| Overall dimensions ft(m) | 81.37x10.83x14.76(24.8x3.3x4.5) |
| Weight lb(kg) | 16534.65(7500) |
| Rotary table model/opening dia., in.(mm) | ZP275/cD27.56(O700) |
| Rotary table shift | Stepless timing |
| Max. rotary speed of rotary table | 300r/min |
| Traveling block | YG225 |
| Swivel | XSL225 |
| Mud pump | F-1300x2 |
| Max. pump pressure psi(MPa) | 5005(35) |
| Max. displacement | 38.78L/sx2 |