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

(1) Geological exploration, engineering geology investigation and kinds of survey holes on concert structures.

(2) Diamond bits, hard metal bits and steel-shot bits could be selected to different layers

(3) 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

(1) 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.

(2) Through the pressure indicator of bottom hole, the well condition can be observed easily.

(3) Close levels, convenient operation,

(4) 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.

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

Technical Specifications

(1) 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

(2) Rotation unit

Spindle speed (5 positions):         1010rpm

Spindle stroke:                      450mm

Maximum feeding pressure:            15KN

Maximum lifting capacity:              25KN

(3) 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

(4) Hydraulic oil pump

Model:                           Ybc-12/80

Flow:                             8ml/r

Nominal pressure:                  8MPa

Nominal speed:                   1500rpm

(5) 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