China Gp90-3 All Hydraulic Diamond Coring Drill Rig

Rod, Hole and Depth (with wire line)

Drilling depth(m)Hole Dia.(mm)Rod Dia.(mm)Material of Rod3809589Steel5007571Steel7005955.5Steel Depth are based on vertical hole.
Working Parameters(Duplex pump structure)
Main shaft rotation speed(ratio2.2:1): ≥1530rpm/≥960rpm
Main shaft torque(ratio3.5:1): 400rpm, 3.5:1>900
Axle pushing force: >62KN
Axle pulling force: >83KN
Hydraulic system working pressure: 20Mpa
Max. Pressure: 25Mpa
Drilling angle: 0-360°
Surface obliquity: 30°-90°
Drive head stroke: 1600 mm
Motor power: 75kw
Motor rotation: 1480rpm
Main pump rated pressure: 31.5Mpa
Auxiliary pump rated pressure: 31.5Mpa
Total weight: 2000kg(main body: 550kg+ Power unit: 700kg+Operation panel:132kg)
Outer dimensions:
Main body: 2370x300x500mm
Power unit:1710x1100x1270mm
Operation panel: 550x450x1150mm
Main Body
The machine body is composed of the following parts:
1. Chuck and speed reducer assembly including:
Speed reducer: ratio 2.2:1
Chuck and guide sleeve
Hydraulic motor
Working pressure: 20Mpa
Maximum pressure:25 Mpa
Theoretical drainage: 80ml/r, the minimum drainage 35ml/r
2. Holder assembly
3. Bed body
Oil cylinder in bed body adopt GG012-80/40x800x1060
Chain adopt 1# and 1 1/4# two kinds of bush roller chain.
Power handcart
Power handcart is composed of the following parts:
1. Y series three-phase squirrel-cage asynchronism motor
Voltage: 380 V
Frequency: 50 Hz
Rotational frequency: 1480 r/min
Power: 75Kw
2. High pressure duplex pump
Main pump rated pressure: 31.5Mpa
Auxiliary pump rated pressure: 31.5 Mpa
3. Oil filter
Filtration accuracy: 10 µm
4. Cooler
Oil pressure: 1.6 Mpa(max)
Water pressure: 1 Mpa(max)
5. Relief valve
Rated flow: 401/min
Adjustment pressure scope: 16-32 MPa
6. Electrical drive pump for hydraulic oil refill: used for adding hydraulic oil
7. Walking wheel
Outstanding features:
Unmatched high drill head and spindle speed, which allows high drilling speed
Full hydraulic driven and control system, including:
Hydraulic rod feeding, pushing and pulling system;
Hydraulic rod rotation driving system;
Superior quality key components made of aircraft grade materials, fabricated with professional aircraft industry machinery;
Power supply can be made by electrical motor/generator assembly.
Drilling angle adjustable between 0°and 360°
Advanced winching system.