Hydraulic Drilling Rigs
Rotary drilling rig is a construction machine suitable for forming
holes in building foundation engineering. It is mainly suitable for
soil layer construction such as sand, cohesive soil and silty soil.
It is widely used in various foundation construction such as
cast-in-place pile, continuous wall and foundation reinforcement.
The rated power of rotary drilling rig is generally 125-450kW. The
output torque is 120-400kN·m, the maximum hole diameter can reach
1.5~4m, and the maximum hole depth is 60-90m, which can meet the
requirements of various large-scale foundation construction.
Hydraulic rotary drilling rig generally adopts hydraulic
crawler-type telescopic chassis, self-lifting foldable mast,
telescopic drill pipe, automatic verticality detection and
adjustment, digital hole depth display, etc. The operation of the
whole rig generally adopts hydraulic pilot control and load
sensing, which has the characteristics of easy operation and
comfort. The main and auxiliary hoists can be applied to various
situations in the construction site. This kind of drilling rig,
with different drilling tools, is suitable for dry (short spiral)
or wet (rotary bucket) and rock (core drill) drilling operations.
It can also be equipped with long spiral drill, underground
diaphragm wall grab, vibration pile hammer and so on. It can
achieve a variety of functions, mainly for municipal construction,
highway bridges, industrial and civil buildings, diaphragm wall,
water conservancy, anti-seepage slope protection and other
foundation construction.
Highlights
The leading overall transport full hydraulic rotary drilling rig,
can change transport state into working state rapidly;
High-performance hydraulic system and control system can realize
the machine efficient construction and real-time monitor;
Unique structure of folding mast can ensure the overall
transportation and reduce the transport size;
Advanced design of rotary angle displacement output mechanism and
central rotary joint output angular displacement can get higher
reliability;
Innovative drilling bucket depth measurement system can show higher
accuracy than the average rig;
The function of main winch bottoming protection and priority
controlling can make the operation easier;
The reversible use of the driving head’s chain can extend the
service life;
Multi-stage damping technology of the driving head can ensure the
whole construction more stable;
The technology of mast automatic verticality can make the vertical
accuracy of the hole higher;
The innovative design of luminous hot wheel can ensure construction
in night more safety;
The humanized design of chassis back can increase storage space
efficiently;
New design of two-stage operating interface can make it more
convenient to operate.
| Torque | 80 kN.m |
| Max. diameter | 1000 mm |
| Max. drilling depth | 28 m(4 node)/22 m(3 node) |
| Speed of rotation | 8~30 rpm |
| Max. crowd pressure | 90 kN |
| Max. crowd pull | 120 kN |
| Main winch line pull | 80 kN |
| Main winch line speed | 72 m/min |
| Auxiliary winch line pull | 35 kN |
| Auxiliary winch line speed | 40 m/min |
| Stroke(crowd system) | 2000 mm/3500mm |
| Mast inclination(lateral) | ±3° |
| Mast inclination(forward) | 4° |
| Max. operating pressure | 34.3 MPa |
| Pilot pressure | 3.9 MPa |
| Travel speed | 2.8 km/h |
| Traction force | 98 kN |
| Operating height | 12580 mm |
| Operating width | 2700 mm |
| Transport height | 3250 mm |
| Transport width | 2700 mm |
| Transport length | 9150 mm |
| Overall weight | 24 t |
