G2Z Fully Hydraulic Two-Boom tunnel jumbo drill

  • Drilling diameter: φ38mm-φ102mm

  • Drilling depth: 5268mm

  • Telescopic length of working arm: 1600mm

  • Total motor power: 161.5kW

Applied range:

It is used for drilling and blasting drilling operations or bolt hole operations in large and medium-sized tunnels such as railways, highways, national defense, water conservancy, mining and other large and medium-sized tunnels.


Imported drive axle, engineering chassis, strong climbing ability

Dana original imported drive axle, four-wheel drive walking system, heavy-duty engineering chassis, fast transition speed and strong climbing ability.

The drilling speed is fast and the drilling tool is very durable

With automatic anti-sticking function and automatic lubrication system, the drilling speed is fast and the consumption of drilling tools is low.

Working arm form-double triangle + self-parallel + square arm

The drill arm is directly positioned with triangular support, and has a full-directional self-parallel holding function, which ensures accurate positioning and stable action.

Stable and reliable hydraulic system

The main components of the hydraulic system adopt German Rexroth, American Parker, etc., hydraulic pilot control, stable and reliable.


Part Nameproject nameSpecification/Model
Whole machineOverall dimensions(LxWxH)15450mmx2500mmx2930mm
Effective working section(WxH)12.9mx9.4m
Effective operating section105㎡
Drilling diameterφ38mm-φ102mm
Drilling depth5268mm
Drilling speed1.5-2.2m/min
Total Weight35000kg
Drill boomWorking arm formDouble triangle + self-parallel + square arm
Telescopic length of working arm1600mm
Pitch angle of working arm+70°~-30°
Swing angle of working arm±45°
Propeller length7102mm
Propeller flip angle360°
Propeller compensation1800mm
Rock drill modelGL18T
Work service platformWorking platform range(WxH)14mx11.5m
Rated load of working platform400kg
ChassisDiesel engine modelQSB6.7-C170-30(High altitude 4500m)
Rated power/speed129/2200 kW/rpm
Maximum walking speed15 km/h
Maximum climbing ability14°
Turning radius(inside/outside)5m/10m
Steering mode + drive modeArticulated steering + four-wheel drive
Rear axle swing angle±8°
Approach / departure angle16/19
Minimum ground clearance425mm
Service brakeMulti-disc wet brake
Electrical SystemTotal motor power161.5kW(2x75kW+7.5kW+4kW)
Supply voltage380V
External cable length80m
water supply systemflow133L/min
Working water pressure2bar-12bar
Gas supply systemDisplacement1000 L/min
working pressure2bar-8bar