Z20 two booms underground drilling jumbo is specially developed and manufactured for tunnels of high-speed railway, water conservancy and hydropower projects, national defense and other medium and large-scale tunnel excavation and drilling operations. The double-boom rock drilling jumbo is a kind of digital underground tunnel drill rigs used for full construction method including multi-step synchronous, step method, full-section and so on. Siton Z20 drill jumbos solve the problem that traditional rock drilling rigs cannot, and this drilling rig machine satisfies the defect of excavation and construction requirement of multiple construction methods of tunnels.

Two sets of independent hydraulic systems of drill booms are used to control each other without interference. The drill booms can be retracted and cover a wide area. A set of aerial work platform is designed for auxiliary work such as blasting charge, danger elimination, mesh hanging, etc. The tunnelling drill jumbos can meet the needs of drilling various blast holes, anchor bolt holes, small pipe support, grouting holes, etc.