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Rotary Drilling Rig

Rotary drilling rigs are used to dig holes in boulders, unconsolidated strata or bedrock. The rigs are commonly used for drilling holes for piling works, such as railroad bridges, road bridges, public works bridges and foundation construction of large buildings. Our rotary drilling rigs are manufactured to industrial standards. We provide high quality drilling equipment to our esteemed customers.

Classification:

Piling Products


Product description

 
Features
1. This drilling equipment is characterized by precise engineering, robust construction, high efficiency, low energy consumption, excellent performance and long service life.
2. The rotary drilling rig is tested several times on clearly defined parameters to ensure its defect-free and optimal quality.
3. The compressor of the rig is double filtered to remove residual oil.
4. The sampler is driven by a free-fall winch to save time in the drill stem method. The sampler can be mounted on the drill pipe if necessary.
5. The rotary drill has the ability to dig deeper holes in unconsolidated formations with drilling equipment and drive methods.
6. The rotary drill bit is cooled by injecting a high flow of air during cutting, which also evacuates rock chips from the hole and stabilizes the hole during drilling.
7. The high flow rate can constantly clean the bottom of the borehole and make consistent contact between the drill bit and the bedrock.
Single start and dual start design.
Drilling Tools
Rock Drill   Rock Barrel   Soil drill   Soil bucket   Core cylinder   Belling Drilling Rig
Main technical specifications
Models

SD20

SD25

SD28

Drill Tower Tower height(mm)

21500

21500

2287

Weight (without drilling tool)(t)

60

65

73

Cylinder pressure system Cylinder stroke(mm)

5700

5700

5700

Cylinder pressure(kN)

200

250

250

Cylinder tension(kN)

200

250

250

Main Lifter Single line pull(kN)

180

250

250

Single line pull(kN)

26

28

30

Max. line speed (m/min)

60

60

65

Auxiliary lifts Single line pull(kN)

75

75

75

Rope diameter (mm)

18

18

18

Max. line speed (m/min)

45

50

45

Drilling parameters Diameter hole (with sleeve)

1500

1600

1800

Diameter (without sleeve) of the bore

1800

2000

2400

Power Unit Power unit model

KDK200

KDK250

KDK280

Turning torque(kN.m)

200

250

286

Rotational Speed(r/min)

8~30

5~25

6~30

Maximum line height(mm)

7220

7220

12200

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