ZEGA D 480A

The ZEGA D480A is an integrated crawler hydraulic rotary head DTH rig which is suitable in quarry, open pit mine and construction sites and other blast hole drilling operation. It is equipped with a 5"high-efficiency hammer and 114mm diameter drill pipe. The designed hole diameter is from 138mm to 165mm and the hole depth is 30 meters (4+1 drill pipe). In case of a special requirement on bigger hole diameter, then the drilling depth will be reduced accordingly.

The hydraulic system uses a pilot control system. Two pilot joysticks are located on the left and right sides, front of the driver’s seat. The intuitive layout and function control facilitates driver drilling operations. The operator has a good view through the fully-view front window, side window and top skylight.

The maximum swing of feed beam is 55 degrees left and 90 degrees right, making the rig suitable for low-bottom hole drilling on the right hand side. If desired, the base can be re-pined so that the feed can give a right 0 degrees and a left 90 degrees swing. The feed beam can be tilted by 99 degrees and backed by 42 degrees.

The boom movement is 27 degrees to the right, 6 degrees to the left and 42 degrees upward, and 20 degrees downward. The boom can also be rotated 71 degrees in a vertical plane, which allows the operator to retract the feed while moving the rig,
reducing the overall height. Full flow manual hydraulic controls for the boom and feed positioning provide smooth and quick movement for fast hole positioning.

At engine speed of 1300 RPM to 1900 RPM, the rotation head provides a torque of 4,310 Nm. The drill pipe lifting force of up to 6,760 kg is sufficient power for the rig to lift the drill string even in the broken hard rock or soft formations. The hydraulic drill pipe locking sleeve makes loading and unloading the drill pipe quickly and efficiently.

Two joysticks mounted in front of the driver’s seat allow easy operation by both skilled and novices. The comfortable operation makes the boom and feed moving smoothly and quickly during the drilling positioning. A single joystick controlling makes handling of drill pipe simple.

ZGEA D480A Technical Specifications

 Diesel engine

Model

QSZ13-C550-30

RPM

2,000rpm

Manufacturer

 Cummins

Fuel tank capacity

730L

Rated power

406kW

 

 

Screw air
compressor

Manufacturer

 Zhigao

Air Flow FAD

30m3/min

Air end maker

GE

Pressure maximum

24bar

Functional
parameters

Hole diameter

138-165mm

DTH Hammer

5” or 6”

Hole depth

30,000mm

Rotation RPM

0-105r/min

Rod diameter

102mm 114mm

Rotation torque

5,600N.m

Rod changer capacity

4+1

Rod length

6,000mm

Boom

Boom type

Single section

Feeding

Hydraulic

cylinder-Steel wire rope

Feed length total

10,100mm

Feed travel length

6,600mm

Feed extension

1,300mm

Max feed rate

0.88m/s

Feed force max.

34.5kN

Pullback force max.

67.6kN

Chassis

Tramming speed max.

3km/h

Traction force

156.2kN

Gradeability max.

25°

Track oscillation angle

±10°

Weight and
dimensions

Width

2,790mm

Height

3,600mm

Length

11,550mm

Weight

23,500kg