Gold Member Since 2013
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Qingdao Grandplan Technology Co., Ltd.

Core Drill Rig, Drilling Machine, Drill Rig manufacturer / supplier in China, offering Gp90-3 All Hydraulic Diamond Coring Drill Rig, Gpl-1.5 Underground Diesel LHD/ Underground Loader, Sjz Series Vertical Shaft Drill and so on.

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Gp90-3 All Hydraulic Diamond Coring Drill Rig

FOB Price: Get Latest Price
Min. Order: 1 Set
Production Capacity: 500PCS/Year
Transport Package: Export Standard Packing
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: GP90-3
  • Type: Core Drilling Rig
  • Name: Gp90-3 All Hydraulic Diamond Coring Drill Rig
  • Drilling Depth: 380-700m
  • Material of Rod: Steel
  • Main Shaft Torque(Ratio3.5:1): 400rpm
  • Motor Power: 75kw
  • Trademark: GRANDPLAN
  • Origin: China
  • Power Type: Electric
  • Condition: New
  • Model: Gp90-3
  • Hole Dia.: 95mm, 75mm, 59mm
  • Main Shaft Rotation Speed: 1530rpm-960rpm
  • Hydraulic System Working Pressure: 20MPa
  • Main Machine Dimension: 2370×300×500mm
  • Specification: ISO, CE, SGS etc...
Product Description
GP90-3 all hydraulic diamond coring drill rig


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 Rod
3809589Steel
5007571Steel
7005955.5Steel
 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: 2370×300×500mm
Power unit:1710×1100×1270mm
Operation panel: 550×450×1150mm

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.

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