... purpose.The model is mainly for hydrological geology and water well drilling in clay, sand and bedrock layers. It ... to 600m and work perfectly under most ground condition.This water well drilling rig has advantages below:Mercedez Chassis : The ... live well service rig, No Guyline well service rig, water well drilling rig, core drilling rig, sand washing truck, flushby rig, dewaxing unit as well as ...