These drilling rigs have following advantages: reasonable design structures and high integration a small working space and a reliable transmission.

The heavy-duty trailer is equipped with some desert tires and large-span axles to improve the move ability and the cross-country performance.

A high transmission efficiency and performance reliability can be maintained by a smart assembly and a utilization of two CAT 3408 diesels and ALLISON hydraulic transmission box.

The draw works is double- drum type, with which the hydraulic disc brake is equipped as main brake and air water-cooling disc brake (Model EATON WCB324) is equipped as auxiliary brake.

The derrick which is front -open type and has two --section structure with an inclination angle or erective sections can be lifted up or fallen down and telescoped.

The substructure has a parallelogram integral structure for easy transportation and installation, which can be risen by 6 setbacks spirally.

These kind of drilling rigs with desert adaptability design also have good anti-dust and high/low- temperature-proof performances.

Safety and inspection measures are strengthened under the guidance of the design concept of "Humanism Above All" to meet the requirements of HSE.