ZJ70LDB

1. nominal range of drilling depth (127mm): 5000m; 
2. max. load of hook: 3150kN; 
3. max.weight of drill string: 1800kN; 

4.sheave system of lifting system: 6×7 along the line; 

5.diameter of drilling wireline: ø35mm; 

6.rated input power of DW: 1600kW; 

7. gears of DW: 4 forward+4 reverse;

8.number×power of mud pump: 3×1600HP; 

9.nominal diameter of RT opening: ø952.5mm; 

10.gears of RT: 2 gears; 

11.effective height of mast: 45m; 

12.height of drill floor: 9m; 

13. area of drill floor (L×W): 13.4m×11.65m; 

14.clear height of RT beam: 7.75m; 

15. frequency and voltage of main generator set: 50Hz/600V; 

16.frequency and voltage of MCC system: 50Hz/400V; 

17. total capacity of mud tank: 433m3; 

18.mud high pressure manifold of dual standpipe: 4″×35Mpa; 

19. working pressure of air supply purification device: 1Mpa; 
20. capacity of air tank: 2.5m3 (2*2m3 (drill floor)+2.5m3 (air supply house) horizontal type)