ZD338 Rock Drilling Rig for Tunneling

ZD338  Rock Drilling Rig for Tunneling
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The ZD338 rock drilling rig for tunneling is an advanced heavy tunneling equipment for tunnel excavation. It comes with three heavy duty hydraulic drill arms. Two arms can rise to 2 meters high, and the third one can drill holes downward with connected drill rods. A hydraulic carriage is available, and the operational area is quite large. This excavation equipment has a high degree of mechanization. It can be used for the traffic tunnel with a cross section area of 20-100 square meters, as well as the metal mine excavation, underground cavity digging, and so on.

Feature
1. Three sets of high performance DZYG38B heavy duty hydraulic rock drill are adopted, bringing the rock drilling rig a lot of advantages including high drilling speed, low energy level, low noise, and high efficiency.
2. The automatic control system can effectively reduce the overbreak and underbreak phenomenon, and greatly enhance the drilling efficiency.
3. The heavy duty hydraulic drill arms and high strength aluminium alloy propeller come with automatic parallel lifting mechanism and drill arm overall lifting mechanisms, giving the ZD338 rock drilling rig several important features like accurate positioning performance, easy operation, large and complete operational area.
4. The self-walking chassis has big power, so the drill rig has great tractive ability and excellent road adaptability. The closed type walking hydraulic system can achieve stepless speed changing, hydraulic direction turning, great driving experience, and flexible operation.

Parameters
(ZD338 rock drilling rig for tunneling)
Total weight32 tonWidth3.2m
Total length (in transportation)14.3mMin. height3.8m
Hydraulic rock drill
DZYG38B3 setsWeight150kg
Impacting frequency40-60HzMax. drill rod speed300r/min
Max. drill rod torque500N.mHole diameter45-102mm
Hydraulic drill arm
AB7413 setsStretching length1600mm
Max. lifting height (arms at two sides)2000mm
Hydraulic propeller
AT15413 setsPropulsion length5525mm
Compensation length1600mm
Hydraulic carriage
AF3211 setStretching length4000mm
Loading capacity500kg
Chassis
MotorVOLVO TAD721-V1Power195kW
Max. walking speed15km/hGradeability14°
Turning radius9.4m/12.6m
Hydraulic power station
Electromotor power3×45kWMax. pressure250bar
Air compressor
Power5.5kWWorking air pressure4-6.5bar
Power supply380V/50Hz
DZYG38B Hydraulic rock drill
Weight150Kg
Impact device pressure15-21.5MPa
Max. rotating pressure10MPa
Max. torque0-750N·m
Impacting frequency40-60Hz
Rotating speed0-300r/min
Installed power45kW
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