XPB-20B jet grouting rig walking anchor for wide strata. Can be different according to the different strata of performance configuration, the maximum output torque up to 2500N · m crawler rotary jet pile, the maximum reach 21kN from Stubbs Rick Churning pile model parameters, to choose carbide drill hole rotary drilling , DTH impact rotary drilling, drilling and other technology methods cone bit, so that in most formations could use this rig directly into the hole later and immediately Churning into the pile. XPL-50 jet grouting anchor rig operation and easy maintenance. As a result of hydraulic pile driver Churning technology, a breakthrough in key technologies, such as rotating jet upgrade, when the anchor drilling increased stepless module to make it work more convenient operation.