ZJD2800 / 180C Full Hydraulic Large Diameter Drill Rig Reverse
Circulation Drilling for Vertical Well Drilling Construction of
Pile Foundation
ZJD2800/180C full hydraulic drilling rig is mainly used for
drilling construction of pile foundation
and vertical well with large diameter and depth in complex geology.
The maximum drilling diameter
and depth are 2.8M and 150M, the biggest embedded rock strength can
reach 200MPA.
It is Widely applied in drilling construction of large building on
land,port and pier,river levee protection,
and river, lake, sea bridge pile foundation, and it’s the main
model of large diameter pile foundation
construction.
Full hydraulic drilling rig working schematics
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.
Main performance and features
1, High efficiency and energy saving, full hydraulic stepless speed
change, reliable and stable transmission performance.
2, Large torque, large lifting force, especially suitable for
complicated stratum such as gravel, hard rock etc.
3, The suspension tiltable power head and tiltable frame with
compact and reasonable structure, easy to assembly and disassembly.
4, Large diameter drill pipe, using high-pressure gas lift seal
device and advanced RCD method.
5, Optional additional weight to increase pressure in hole bottom,
ensure the verticality of the hole.
6, Optional stabilizer to assist drilling, effectively control the
verticality and hole diameter precision, reduce drilling tool wear.
7, Simple operation, low maintenance cost, comfortable environment
of operation room, optional installation of temperature adjusting
device.
8. 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.
9. Easy to collect samples. Any depth of the sample will help to
study and analysis of geological condition.
Technical parameters
| 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 | 3Phase 380V50HZ | 182(KW) |
| Slag discharge method | Air-lift reverse circulation |
Application case
 The Hong Kong-Zhuhai-Macao cross sea Bridge
|  Zhejiang Jiashao Bridge
|
 Wenzhou Damen cross sea Bridge
|  Hangzhou Bay cross sea Bridge
|
 Malaysia Penang Bridge
|  Guangzhou-Shenzhen expressway construction site
|
 Mozambique Puto Bridge
|  Yangshan Port inclined pile Project
|
 Phoenix Bridge in Guangzhou Nansha
Development Zone |  Ningbo Xiangshan Harbor Bridge
|
