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By certification 
Main Features
1.Mechanical transmission
2.Power: diesel engine+ decelerator
3.Speeds in gearbox become 4 forward +1reverse by gear transmission
4.Output shaft of gearbox transmit the power to drawworks by chain
5.Reasonable distribution of gears, high use ratio of power
6.ZP175 rotary table
7.Gear-shift of gearbox is controlled by pneumatic system
Main Technical Parameters
Model ZJ20/1350 ZJ20/1350DJ ZJ20/1350DZ ZJ20/1350DB
Drilling depth （114mm drill pipe） 2000m 2000m 2000m 2000m
Max. hook load 1350kN 1350kN 1350kN 1350KN
Traveling system structure 4×5 4×5 4×5 4×5
Fast line diameter φ29mm φ29mm φ29mm φ29mm
Max. pull of fast line 170 kN 170kN 200 kN 200kN
Power of drawworks 400KW 400KW 400KW 400KW
Speed of drawworks 4F+ 1R 4F 2F,Stepless speed regulation 2F，Stepless speed regulation
Input power of rotary table 200 kW 200 kW 200 kW 200 kW
Mast JJ135/41-K JJ135/41-K JJ135/41-K JJ135/41-K
Substructure DZ135/2.8-K DZ135/4.5-K DZ135/4.5-K DZ135/3.8-K
1.Mechanical transmission
2.Power: diesel engine+ decelerator
3.Speeds in gearbox become 4 forward +1reverse by gear transmission
4.Output shaft of gearbox transmit the power to drawworks by chain
5.Reasonable distribution of gears, high use ratio of power
6.ZP175 rotary table
7.Gear-shift of gearbox is controlled by pneumatic system
Main Technical Parameters
Model ZJ20/1350 ZJ20/1350DJ ZJ20/1350DZ ZJ20/1350DB
Drilling depth （114mm drill pipe） 2000m 2000m 2000m 2000m
Max. hook load 1350kN 1350kN 1350kN 1350KN
Traveling system structure 4×5 4×5 4×5 4×5
Fast line diameter φ29mm φ29mm φ29mm φ29mm
Max. pull of fast line 170 kN 170kN 200 kN 200kN
Power of drawworks 400KW 400KW 400KW 400KW
Speed of drawworks 4F+ 1R 4F 2F,Stepless speed regulation 2F，Stepless speed regulation
Input power of rotary table 200 kW 200 kW 200 kW 200 kW
Mast JJ135/41-K JJ135/41-K JJ135/41-K JJ135/41-K
Substructure DZ135/2.8-K DZ135/4.5-K DZ135/4.5-K DZ135/3.8-K
