ZJD2800/180C Full Hydraulic Drilling Rig – Reverse Circulation Drilling Rig

ZJD2800/180C Full Hydraulic Drilling Rig – Reverse Circulation Drilling Rig

RCD Machine is a large bored equipment of soil foundation works for bridges, high-rise and metro construction. the vertical excavation work by means of the full hydraulic power swivel with rotary bits.
Drill string with special drill bit is used for drilling in the borehole, and the sand-stone and mud are flushed out through the drill pipe rods by the pressure difference in the hole.

ZJD series RCD rig is specifically used for foundation drilling of large diameter of bored pile(1.0-5.0m). This equipment is used for drilling a borehole through soft and hard rock layers for foundation construction.

Features

Working Principle

Parameters

Application

1.The maximum drilling diameter and depth are 2.8M and 150M, the biggest embedded rock strength can reach 200MPA.
2, High efficiency and energy saving, full hydraulic stepless speed change, reliable and stable transmission performance.
3, Large torque, large lifting force, especially suitable for complicated stratum such as gravel, hard rock etc.
4, The suspension tiltable power head and tiltable frame with compact and reasonable structure, easy to assembly and disassembly.
5, Large diameter drill pipe, using high-pressure gas lift seal device and advanced RCD method.
6, Optional additional weight to increase pressure in hole bottom, ensure the verticality of the hole.
7, Optional stabilizer to assist drilling, effectively control the verticality and hole diameter precision, reduce drilling tool wear.
8, Simple operation, low maintenance cost, comfortable environment of operation room, optional installation of temperature adjusting device.
9. High cost efficiency. the overall drilling costs can actually be reduced by up to 40% when using RCD, safety and requires fewer man hours, requires less water than other method.
10. Easy to collect samples. Any depth of the sample will help to study and analysis of geological condition.

 

Scope of Application

ZJD2800/180C full hydraulic drilling rig can be clamped in the pile casing and used for vertical pile and tilting pile drilling, This is an efficient, safe and environmentally solution for:

  • Large dia (about 2.8m)
  • Depth (more than 150m)
  • Hard rock (75Mpa ~ 200Mpa)
  • Bore piling in marine conditions, gulf area, port

Working Schematic

First-class quality, First-class service, First-class technology

ZJD2800/180C full hydraulic drilling rig is favored by domestic and foreign customers with strong operation capability, advanced technology, high cost performance, timely and thoughtful service, and won industry praise. Compared with other piling equipment, has the advantages of low investment, high efficiency, quick recovery and so on, is an ideal choice for pile foundation construction users.

Product model: ZJD2800/180C

Name

Maximum drilling diameter

Maximum drilling depth

Maximum lifting force

Guide frame tilt angle

Power head tilt angle

Crane

Total Weight

Dimension

Parameters

Ф2.8(M)

150(M)

120(T)

25(Degree)

55(Degree)

1(T)

25(T)

4*3.81*7(M)

Name

Rotate speed and torque of power head

Drill Pipe Specifications

Power Supply

Total power

Parameters

0~8RPM

18.5T•M

0~27RPM

6T•M

Ф351*20*3000

3Phase380V50HZ

182(KW)

Slag discharge method

Air-lift reverse circulation

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The Hong Kong Zhuhai                                                                                                                     Hangzhou Bay cross sea Bridge
Macao cross sea Bridge

 

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Zhejiang Jiashao Bridge                                                                                                      Malaysia Penang Bridge

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Mozambique Puto Bridge                                                                                            Bogging Xiangshan Harbor Bridge

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Wenzhou Damen cross sea Bridge                                                                                     Phoenix Bridge in Guangzhou
Nansha Development Zone

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Yangshan Port inclined pile Project                                                                           Guangzhou-Shenzhen expressway construction site