* The whole rig structure is compact and highly integrated, which requires a smaller working site. A good and reasonable assembly of CATERPILLAR engine and ALLISON transmission box can supply high driving efficiency and increase safe performance.

* The substructure is heavy-duty 8x8 normally –drive with a hydraulic steering system /desert tires and an anti-sand filter. Diesel engine is equipped with sand-proof filter and canopy, so that the workover rig can move and work in desert conditions.

* An inner-circulated forced water cooling system can insure the drawworks works well under a high-temperature condition.

* The compound box for rotary table has a function of forward-reverse shift, which can be suitable for DP’s rotary operations. The anti-torque release device can be used to release the deformation energy of the DP safely.

* The mast is front –open type and double- section structure, which can be telescoped, raised and extended hydraulically.

* The drill floor is twin-body telescopic type or parallelogram structure, which is convenient for installation and transportation. The dimension and height of the drill floor can be designed according to the user’s requirements. Safety and inspection measures are strengthened under the guidance of the design concept of “Humanism Above All” to meet the requirements of HSE.