Down Hole Drill (DTH Drilling) HC725

Features of HC725 Down Hole Drill (DTH Drilling)
1. Tracked drilling carriage.
2. Self-powered.
3. HC725 down hole drill has features of energy saving, high efficiency, and low noise, low operation cost, wide application as well as easy maintenance.
4. Large scope amplitude modulation capacity.

5. Major components of HC725 down hole drill, such as motor and control valve, are imported from Germany and Japan.

Advantages of Compressor
1. Advanced microprocessor monitoring technology is adopted to satisfy all needs for compressed air.
2. Low air consumption.
3. Main components, such as motor, mounted roller and ball bearing, are imported from Germany.
4. Advanced separator and filter guarantee that residual oil content is less than 3ppm.
5. Aluminum radiator is easy to clean.
6. Anti-high temperature pipe and connector can prevent oil leakage effectively.

Optional
10~20m3/min air delivery compressor series
Depth of drill hole with 30m or 35m

Technical Parameters of HC725 Down Hole Drill (DTH Drilling)

Engine
Model	Cummins 4BTA
Type	Direct injection, turbocharged, water cooled
Rated power	93 KW
Rated speed	2200 rpm
Main technical specification
Tracked drilling carriage
Rock rigidity	f=6~20
Diameter of drill hole	60~130 mm
Depth of drill hole	25 m
Traveling speed	2 km/h
Grade ability	25°
Rotation speed	0~70 rpm
Working pressure	0.5~1.4 MPa
Air consumption	7~12 m3/min
Compressor
Type	Screw rotating one stage compression oil cooled
Displacement	10.2 m3/min
Pressure	0.7~1.0 MPa
Lubricating mode	Forced lubricating according to lubricating compression
Drive mode	Coupler direct
Volume of lubricating oil	60 L
Type
Type size	6.5-16
Type pressure	0.6 Mpa
Tread	1560 mm
Dimensions
Tracked drilling carriage
Overall length	4250 mm
Overall width	1980 mm
Overall height	2260 mm
Compressor
Overall length	3360 mm
Overall width	1850 mm
Overall height	1850 mm
Connector size	R1.1/2″*1, R1″*2
Max. working altitude	3000 m
Weight
Tracked drilling carriage	3000 kg
Compressor	21000 kg