Main Specification of ZJ30/40 Truck-mounted Drilling Rig
Item                  Name                          Parameter                                                ZJ30            ZJ40    
1                   Total power of drilling rig     (525×2)HP   (630×2)HP
2                   Max. Load                   1800KN       2250KN
3                   Transmission type          hydraulic + mechanical
4                   Driving type                 14×8          14×8
5                   Drilling depth         3000m(4 1/2DP)   4000m(4 1/2DP)
6                   Mast height                38m              38m  
7                   Diameter of wireline      Φ32mm orΦ29mm      Φ32mm
8                   Hydraulic system            14MPa          21MPa
9                   Pneumatic system            0.8MPa         0.8MPa
10                  Traveling system          6×5 or 5×4      6×5
11                  Overall dimension        23000×3200×4496mm(include mast)                         16560×3200×3190mm(not include mast) 12                  Total mass           approximate 78tons  approximate 85tons

Technical Characteristics     
1.The whole unit utilizes hydraulic + mechanical transmission which realizes the flexible stepless adjustment of speed of the drilling device and the chassis of the carrier . The Caterpillar engine and Allision hydraulic transmission mate reasonably with high transmission efficiency and excellent safety .Utilization effectiveness of the engine is increased greatly .
2.Drilling devices are mounted on the carrier ,thus ,the removability of the rig is increased .The assembling and preparatory time is shortened and the effectiveness of the rig is increased .
3.The rig is equipped with complete hydraulic and pneumatic operating control system and double crown saver ,which decrease the workers intensity of work and enhance the safety of operation .
4.The entirely forging brake rim and water circulating cooling system are used to increase the safety of braking and service life of the brake rim. They are also beneficial to environment .
5.Engine killing and overspeed device are equipped to meet the requirement of wellsite of oil and gas .
6.The heavy duty carrier is 14×8constant drive ,self-propelled ,equipped with power steering system and having a good cross-country capability .
7.The rotary table can realize forward reverse shift ,suitable for all kinds of drilling pipe rotary operation .It is equipped with anti- torque release device to ensure that the drilling pipe deformation energy can safely release .
8.Designed according to API International specifications ,meeting the HSE requirement and the requirement of international bidding.