The Core Drilling Rig

DR-1Core drilling rig is a portable hydraulic rig which on high speed, to meet the needs of different customers with widely practical use, we advance DR-1 model drill, which is adding with travel lower chuck and adding with water pump: water pump and diesel engine installed in the same bases.

Application range

• Geological exploration, engineering geology investigation and kinds of survey holes on concert structures.

• Diamond bits, hard metal bits and steel-shot bits could be selected to different layers

• The rated drilling depth is 100m, we are using dia.75mm bit. Depth is 180m, we are using dia.46mm bit and the drilling depth cannot exceed 110% of its capacity, the allowable max. Diameter if initial hole is 150mm.

Mail Feature

• Being equipped with ball type holding device and hexagonal Kelly, It can accomplish no-stopping working while lifting the rods, thus drilling efficiency increase. Operate conveniently, secure and reliable.

• Through the pressure indicator of bottom hole, the well condition can be observed easily.

• Close levels, convenient operation,

• The hoist spindle is supported by the ball bearing, it could eliminate the event of the supporting bearing burned-out.Under the spindle head. There is a well top plate for unscrewing the rods conveniently.

• Compact size and small weight easy to dismantle and transport, adapt to work in plain and mountain areas.

Technical Specifications

• Fundamental parameters

Drilling depth: 100m, 180m

Max. Diameter of the initial hole: 150mm

Diameter of the final hole: 75.46mm

Diameter of drilling rod: 42.43mm

Angle of drilling: 900-750

Overall dimension (L*W*H) 1433*697*1274

Total weight (not include power unit): 420kg

• Rotation unit

Spindle speed (5 positions): 1010rpm

Spindle stroke: 450mm

Maximum feeding pressure: 15KN

Maximum lifting capacity: 25KN

• Hosting

Single wire lifting capacity: 11KN

Rotation speed of drum: 121rpm

Drum circumferential velocity: 1.05 m/s

Diameter of the wire rope: 9.3m

Spool capacity: 35mm

• Hydraulic oil pump

Model: Ybc-12/80

Flow: 8ml/r

Nominal pressure: 8MPa

Nominal speed: 1500rpm

• Power unit

Type of electrical motor: Y160M-4

Rated power: 11kw

Rated rotating speed: 1460rpm

Type of diesel: ZS1105-1

Rated power: 12.1kw

Rated rotating Speed: 2000rpm