1.The drilling rig is fitted with the flexible boom in two symmetric rectangular coordinates, without any operation blind spot. 360°rotation and self-leveling beam make drill positioning easy, it can also be used for the drilling of lateral cross-cut and rock bolting.

2.Equipped with eagle boom lift system, height coverage up to 13.2 m, to meet both large-scale tunnel operation requirements.

3.Heavy-duty steel chassis and +38/50 ° large steering angle design for convenient and flexible steering and jobsite transfer, and better load capacity and morestable operation.

4.The drilling rig provides a good view for the operator, balanced layout and the articulated chassis of four-wheel drive ensure the flexible, fast and safe driving in the narrow tunnel.

5.The stepped piston is used for the high-frequency impacting rock drill and this can improve the transmission efficiency of impact wave and drilling speed and reduce the consumption of drilling tools and make it in good condition.

6.Consideration space and automatic functions enable the driver to concentrate on drilling in a safe, fast and accurate manner.

7.All the relevant parts are kept in good protection, meanwhile maintenance easily.

SRJ33 Underground Jumbo Drilling Rig
Applicable for underground & tunnel construction in road, railway & hydro power station projects,etc.. Three heavy duty booms, a service platform, a elevating cab, an self opening cable reel & a water hose reel and a grease auto filling system for easy operation & maintenance.

Two outside booms equipped with eagle type boom bases & optional auto RHS for larger cross-sectional drilling & bolting, etc. Full hydraulic proportional pilot control for high precision control & lower downtime rate.