
Drilling depth guideline for GP90-1 Hydraulic Diamond Core Drill Rig
(with wire line)
Rod size/Barrel | up | horizontal | down |
BQ(59mm) | 250m | 350m | 450m |
NQ(75mm) | 200m | 300m | 400m |
HQ(89mm) | 150m | 250m | 350m |
Working Parameters
Main shaft rotation speed without load: ≥1700r/min (speed reducer ratio 2.2:1)
≥820r/min (speed reducer ratio 3.5:1)
Main shaft rotation speed with load: ≥1300r/min (speed reducer ratio 2.2:1)
Drilling output: 40-60m per 6 hours for general conditions, if hardness is not big, drilling output will be more.
Torque of axle: ≥650 Nm(speed reducer ratio 2.2:1 rotation speed 400 rpm)
Axle pushing force: >53KN
Axle pulling force: >66KN
Drilling angle: 0-360°
Surface obliquity: 30°-90°
Drive head stroke: 1600 mm
Water consumption: 5-10m3/day,depending on different climate and this is for cycled use.
Core recovery: ≥75% if the ore body structure is not integrated.
≥85% if the ore body structure is integrated.
Total weight: 1750 kg(main body:550kg+ Power unit:700kg+ Operation panel:112kg)
Outer dimensions:
Main body:2370×300×500mm
Power unit:1530×1100×1210mm
Operation panel:550×450×1150mm
Main Body

The machine body is composed of the following parts:
1. Chuck and speed reducer assembly including:
l Speed reducer: ratio 2.2:1
l Chuck and guide sleeve
l Hydraulic motor
n Working pressure: 20Mpa
n Maximum pressure:25 Mpa
n Theoretical drainage: 80ml/r, the minimum drainage 35ml/r
2. Rod Holder assembly
Double holding cylinders to ensure accurate drilling reaching direction.
Chuck and Rod Holder | ||
HQ Chuck(95mm) | ||
Type | Opened hydraulically Closed mechanically Automatic synchronization with rod holder | |
Jawe | Rod holder2pc(with tungsten carbide inserts) Chuck 4pc |
Oil cylinder in bed body adopt GG012-80/40x800x1060
Chain adopt 1# and 1 1/4# two kinds of bush roller chain.
Power Pack

1. Y series three-phase squirrel-cage asynchronism motor
l Voltage: 380 V for standard, other voltage optional
l Frequency: 50 Hz for standard, other frequency optional
l Rotational frequency: 1480 r/min
l Power: 55Kw
2. High pressure axial plunger pump
l Motor oil way plunger pump(main pump)
n Rated pressure: 31.5 Mpa
n Theoretical drainage: 800 ml./r(90% of the oil pump drainage)
n Max. theoretical torque: 439.6 Nm
l Feed oil cylinder oil way plunger pump(service pump)
n Rated pressure: 31.5 Mpa
n Theoretical drainage: 10.9 ml/r
n Max. theoretical torque: 54.8 Nm
3. Oil filter
Filtration accuracy: 10 µm
1. Cooler
l Oil pressure: 1.6 Mpa(max)
l Water pressure: 1 Mpa(max)
2. Relief valve
l Rated flow: 401/min
l Adjustment pressure scope: 16-32 MPa
3. Electrical drive pump for hydraulic oil refill: used for adding hydraulic oil
4. Traveling wheel rubber type.
Mud Pump

disassembly, installation and movement.
Operation Panel

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



absorb any chips so as to avoid it goes to next step.

feedback during the work.


4 shifts design. high and low shift by stepless shift change For hydraulic shift mode
More advanced, more humanized, more optimized design for whole working system.
More Features of GP90-1 hydraulic diamond drill rig:
High quality drive chain with heavy duty configured.
High quality Jaw.
High quality oil seals
High quality shape-unchangeable imported spring.
High quality oil resistant, high temperature resistant and high pressure resistant rubber seal O ring..
High quality anti-loose gasket
Considerate move and deliver tools.
Main Components
l Power pack
l Main Machine body with wire line system
l Control panel
l Chuck
l Rod holder
l Slurry Pump
l Hydraulic drive type drilling mast applicable for both surface and underground drilling
l Underground support device, supporting pole.