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RCD (Reverse Circulation Drilling)

Product Detail Information

RCD(Reverse Circulation Drilling) Machine

R.C.D Machine is large bored equipment of soil foundation works for bridges, buildings and subways and used for the vertical excavation work by means of the installed power swivel with rotary bits on body based on hydraulic system.

It brings the rapid enhancement of work efficiency according to speedy excavation capability without noise and vibration and is not influenced by the nature of soil. Vertical work capability is over 50M deep-hole drilling and almost not influenced by any working environments.

 

Specification

Drilling Dia.
1.5~3.0m
Swivel Torque
241~341kN-m
max. Drilling Speed
32.7~34.3rpm
Cont. Drilling Speed
6.5~6.9rpm
Pull Down Force (Pull up)
129~201ton
Pull Down Force (Thrust)
88~122ton
Mast Tilt Angle
22~32°
Platform Tilt Angle
16°
Required the Air Supply
7~25m3/min
Weight
59.3~81.8ton
(Drill String-50M)

*RCD machine is essential for the drilling.
This equipment is used for drilling a borehole through soft and hard rack layers .
- Apply to bridge, pile constuction.

 

 

Option

1. Power Pack

 

Engine Power
260~850HP
Weight
7~20ton

- Manufacturing to use in foundation construction equipment (R.C.D M/C, Casing Oscillator, Hydraulic Hang Grab etc.) is possible.
- According to reducing noise to the minimum by efficient soundproof, working in a down is possible.
- Reducing fuel consumption rate to the minimum by minimum

 

 

2. Drill Bit

 

Casing Dia.
1.0~3.0M
Drill Bit Dia.
0.85~2.75M
Body Length
1500~2500mm
Suction Pipe
NW200~300
Roller Cutter Size
8~12inch
Roller Cutter No.
6~21EA
Weight
1.5~12.5ton
Cutter Type
Tooth/Button/Disc
Assembly with
Drum Stabilizer
Heavy Duty Stabilizer
Heavy Duty Space Pipe
*The above may change during further development

Schematic Diagram

1. Mast Boom
10. Drill Pipe
2. Working Platform
11. Drill Pipe Connector
3. Adapter
12. Space Pipe
4. Casing Clamp
13. Double Stabilizer
5. Slide Box
14. Drum Stabilizer
6. Gear Box(Power Swivel)
15. Bit Body
7. Operation Line
16. Bits
8. Suction Line
17. JID Crane
9. Single Sttabilizer