Beijing Rotary Machinery Technology Co., Ltd. specialized in the constrution of drilling rigs for series model as R400, R300, R260, R230, R200, R160, R120 etc. that has been specially design aand built for carrying out works requiring large bore diameters at great depth. The R200 drilling rig mounted on the base carrier THD60, It has been specially designed to perform the following jobs: -Bored piles with or without drilling fluid; -Casing with rotary head or by the use of an oscillator. The main features of R200 are the following: -Machine class:60 ton; -Rotary torques:210 *****; -Max.driving depth:60m; Casing driving by rotary crowd system; -Advanced instrumentation; -Reliability and safety; -Diesel engine meeting the most recent mission regulations; -Mechanical and hydraulic pre-arrangement for casing oscillator(optional); -Electronic monitoring system on 11&＃039;color screen for monitoring and conrrolling of the drilling poeration parameters. -